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Grid Defense 9x19 Para Upper Receiver Up to 27% Off — Free 2 Day Shipping w/ code 2DAYAIR — 19 models

Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Flat Dark Earth, GD75E7GDR9MMFDE
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Flat Dark Earth, GD55GDR9FCAN9MMFDE
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, OD Green, GD55GDR9FCAN9MMOD
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Burnt Bronze, GD75E7GDR9MMBB
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Black, GD55GDR9FCAN9MMBLK
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, OD Green, GD75E7GDR9MMOD
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Tactical Grape, GD75E7GDR9MMGRP
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Black, GD75E7GDR9MMBLK
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Tungsten Gray, GD16E14GFR9MMTG
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Burnt Bronze, GD16E14GFR9MMBB
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Tungsten Gray, GD55GDR9FCAN9MMTG
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Blue Titanium, GD75E7GDR9MMBT
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Blue Titanium, GD55GDR9FCAN9MMBT
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Blue Titanium, GD16E14GFR9MMBT
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Tactical Grape, GD55GDR9FCAN9MMGRP
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Burnt Bronze, GD55GDR9FCAN9MMBB
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Tactical Grape, GD16E14GFR9MMGRP
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Flat Dark Earth, GD16E14GFR9MMFDE
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Black, GD16E14GFR9MMBLK
Grid Defense 9x19 Para Upper Receiver, Black, Blue Titanium, Burnt Bronze, Flat Dark Earth, OD Green, Tactical Grape
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Flat Dark Earth, GD75E7GDR9MMFDE
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Flat Dark Earth, GD55GDR9FCAN9MMFDE
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, OD Green, GD55GDR9FCAN9MMOD
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Burnt Bronze, GD75E7GDR9MMBB
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Black, GD55GDR9FCAN9MMBLK
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, OD Green, GD75E7GDR9MMOD
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Black, GD75E7GDR9MMBLK
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Tactical Grape, GD75E7GDR9MMGRP
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Tungsten Gray, GD16E14GFR9MMTG
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Blue Titanium, GD75E7GDR9MMBT
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Tungsten Gray, GD55GDR9FCAN9MMTG
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Burnt Bronze, GD16E14GFR9MMBB
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Blue Titanium, GD55GDR9FCAN9MMBT
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Blue Titanium, GD16E14GFR9MMBT
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Burnt Bronze, GD55GDR9FCAN9MMBB
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Tactical Grape, GD55GDR9FCAN9MMGRP
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Tactical Grape, GD16E14GFR9MMGRP
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Flat Dark Earth, GD16E14GFR9MMFDE
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Black, GD16E14GFR9MMBLK
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Flat Dark Earth, GD75E7GDR9MMFDE
1 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Flat Dark Earth, GD75E7GDR9MMFDE
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Flat Dark Earth, GD55GDR9FCAN9MMFDE
2 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Flat Dark Earth, GD55GDR9FCAN9MMFDE
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, OD Green, GD55GDR9FCAN9MMOD
3 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, OD Green, GD55GDR9FCAN9MMOD
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Burnt Bronze, GD75E7GDR9MMBB
4 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Burnt Bronze, GD75E7GDR9MMBB
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Black, GD55GDR9FCAN9MMBLK
5 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Black, GD55GDR9FCAN9MMBLK
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, OD Green, GD75E7GDR9MMOD
6 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, OD Green, GD75E7GDR9MMOD
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Tactical Grape, GD75E7GDR9MMGRP
7 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Tactical Grape, GD75E7GDR9MMGRP
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Black, GD75E7GDR9MMBLK
8 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Black, GD75E7GDR9MMBLK
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Tungsten Gray, GD16E14GFR9MMTG
9 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Tungsten Gray, GD16E14GFR9MMTG
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Burnt Bronze, GD16E14GFR9MMBB
10 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Burnt Bronze, GD16E14GFR9MMBB
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Tungsten Gray, GD55GDR9FCAN9MMTG
11 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Tungsten Gray, GD55GDR9FCAN9MMTG
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Blue Titanium, GD75E7GDR9MMBT
12 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Blue Titanium, GD75E7GDR9MMBT
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Blue Titanium, GD55GDR9FCAN9MMBT
13 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Blue Titanium, GD55GDR9FCAN9MMBT
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Blue Titanium, GD16E14GFR9MMBT
14 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Blue Titanium, GD16E14GFR9MMBT
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Tactical Grape, GD55GDR9FCAN9MMGRP
15 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Tactical Grape, GD55GDR9FCAN9MMGRP
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Burnt Bronze, GD55GDR9FCAN9MMBB
16 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Burnt Bronze, GD55GDR9FCAN9MMBB
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Tactical Grape, GD16E14GFR9MMGRP
17 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Tactical Grape, GD16E14GFR9MMGRP
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Flat Dark Earth, GD16E14GFR9MMFDE
18 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Flat Dark Earth, GD16E14GFR9MMFDE
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Black, GD16E14GFR9MMBLK
19 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Black, GD16E14GFR9MMBLK
Grid Defense 9x19 Para Upper Receiver, Black, Blue Titanium, Burnt Bronze, Flat Dark Earth, OD Green, Tactical Grape
20 of 39 images
Grid Defense 9x19 Para Upper Receiver, Black, Blue Titanium, Burnt Bronze, Flat Dark Earth, OD Green, Tactical Grape
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Flat Dark Earth, GD75E7GDR9MMFDE
21 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Flat Dark Earth, GD75E7GDR9MMFDE
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Flat Dark Earth, GD55GDR9FCAN9MMFDE
22 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Flat Dark Earth, GD55GDR9FCAN9MMFDE
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, OD Green, GD55GDR9FCAN9MMOD
23 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, OD Green, GD55GDR9FCAN9MMOD
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Burnt Bronze, GD75E7GDR9MMBB
24 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Burnt Bronze, GD75E7GDR9MMBB
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Black, GD55GDR9FCAN9MMBLK
25 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Black, GD55GDR9FCAN9MMBLK
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, OD Green, GD75E7GDR9MMOD
26 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, OD Green, GD75E7GDR9MMOD
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Black, GD75E7GDR9MMBLK
27 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Black, GD75E7GDR9MMBLK
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Tactical Grape, GD75E7GDR9MMGRP
28 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Tactical Grape, GD75E7GDR9MMGRP
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Tungsten Gray, GD16E14GFR9MMTG
29 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Tungsten Gray, GD16E14GFR9MMTG
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Blue Titanium, GD75E7GDR9MMBT
30 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Blue Titanium, GD75E7GDR9MMBT
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Tungsten Gray, GD55GDR9FCAN9MMTG
31 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Tungsten Gray, GD55GDR9FCAN9MMTG
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Burnt Bronze, GD16E14GFR9MMBB
32 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Burnt Bronze, GD16E14GFR9MMBB
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Blue Titanium, GD55GDR9FCAN9MMBT
33 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Blue Titanium, GD55GDR9FCAN9MMBT
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Blue Titanium, GD16E14GFR9MMBT
34 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Blue Titanium, GD16E14GFR9MMBT
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Burnt Bronze, GD55GDR9FCAN9MMBB
35 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Burnt Bronze, GD55GDR9FCAN9MMBB
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Tactical Grape, GD55GDR9FCAN9MMGRP
36 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Tactical Grape, GD55GDR9FCAN9MMGRP
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Tactical Grape, GD16E14GFR9MMGRP
37 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Tactical Grape, GD16E14GFR9MMGRP
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Flat Dark Earth, GD16E14GFR9MMFDE
38 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Flat Dark Earth, GD16E14GFR9MMFDE
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Black, GD16E14GFR9MMBLK
39 of 39 images
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Black, GD16E14GFR9MMBLK

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Questions & Answers
Does this have a threaded barrel that will allow a suppressor to be attached Expert Answer

Yes. The Grid Defense 9x19 Para Upper Receiver features standard 1/2x28 TPI for installing different muzzle devices or suppressors.

by Ethan, Gear Expert, March 22, 2022
See 1 More Answer
Will this work with an Anderson lower? Expert Answer

The Grid Defense 9x19 Para Upper Receiver will be compatible with an Anderson AR15 lower. However, you will need to use a magazine adapter such as the Stern Defense MAG-AD9 AR-15 Glock 9mm/.40 Magazine Conversion Adapter (linked below).
https://www.opticsplanet.com/stern-defense-mag-ad9-ar-15-glock-9mm-40-magazine-conversion-adapter.html

by Ethan, Gear Expert, January 25, 2024
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review Well made upper by Jwhi1979, September 9, 2020
Very sturdy, functions flawlessly and the Cerakote work is excellent. I put 100 rounds through it so far with zero malfunctions. The barrel is a bit heavy but for the price you can’t go wrong. Highly recommended
5/5 found this helpful
Read 1 Review
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Please note, this Complete Upper Receiver does not include a Bolt Carrier Group or Charging Handle.

Product Info for Grid Defense 9x19 Para Upper Receiver

Improve the function and aesthetic of your weapon by installing this Grid Defense 9x19 Para Upper Receiver. Grid Defense machined these AR15 Upper Receivers from 7075-T6 aluminum for a lightweight yet durable build, and you can pick your choice of corrosion-resistant coating to further strengthen the structure. To expand your accessory customization options, the Grid Defense 9x19 Para Mil-Spec Upper Receiver features an octagon M-LOK rail. Mount essential accessories and improve your firearm's performance by using this Grid Defense 9mm Upper Receiver.image

Specifications for Grid Defense 9x19 Para Upper Receiver:

Manufacturer: Grid Defense
Caliber: 9mm Luger
Barrel Profile: 4150 Light HBAR
Barrel Twist Rate: 1-10
Threads per Inch: 1/2x36
Handguard Type: Free-Float
Gun Model: AR-15
Condition: New
Fabric/Material: 4150 Steel
Gas Block Journal Size-Diameter: .750 in
Handguard Style: Thin Rail
Gun Rail: M-LOK
Gun Type: Rifle
Gun Make: AR Platform
Bolt Carrier Group Included: No
Charging Handle Included: No
Weight: 3.2 lb
Magazine Included: No
Mount Type: M-LOK

Features of Grid Defense 9x19 Para Upper Receiver:

  • Mil-Spec 7075-T6 Upper Receiver
  • 1:10 Twist 4150 Light HBar Barrel - Nitride
  • Grid Defense Octagon M-Lok Rail
  • A2 Flash Hider/Dimpled flash can
  • Chambered in 9x19 Para

Package Contents:

  • Grid Defense 9x19 Para Complete Upper Receiver

Which weapon models is Grid Defense 9x19 Para Upper Receiver compatible with?

Grid Defense 9x19 Para Upper Receiver is compatible with AR-15

Grid Defense 9x19 Para Upper Receiver Orderable Models

List of Orderable Models

Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Flat Dark Earth, GD75E7GDR9MMFDE , MPN: GD75E7GDR9MMFDE , Code: 3Q7-UFH-9X19UPPER-GD75E7GDR9MMFDE
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Flat Dark Earth, GD55GDR9FCAN9MMFDE , MPN: GD55GDR9FCAN9MMFDE , Code: 3Q7-UFH-9X19UPPER-GD55GDR9FCAN9MMFDE
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, OD Green, GD55GDR9FCAN9MMOD , MPN: GD55GDR9FCAN9MMOD , Code: 3Q7-UFH-9X19UPPER-GD55GDR9FCAN9MMOD
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Burnt Bronze, GD75E7GDR9MMBB , MPN: GD75E7GDR9MMBB , Code: 3Q7-UFH-9X19UPPER-GD75E7GDR9MMBB
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Black, GD55GDR9FCAN9MMBLK , MPN: GD55GDR9FCAN9MMBLK , Code: 3Q7-UFH-9X19UPPER-GD55GDR9FCAN9MMBLK
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, OD Green, GD75E7GDR9MMOD , MPN: GD75E7GDR9MMOD , Code: 3Q7-UFH-9X19UPPER-GD75E7GDR9MMOD
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Black, GD75E7GDR9MMBLK , MPN: GD75E7GDR9MMBLK , Code: 3Q7-UFH-9X19UPPER-GD75E7GDR9MMBLK
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Tactical Grape, GD75E7GDR9MMGRP , MPN: GD75E7GDR9MMGRP , Code: 3Q7-UFH-9X19UPPER-GD75E7GDR9MMGRP
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Tungsten Gray, GD16E14GFR9MMTG , MPN: GD16E14GFR9MMTG , Code: 3Q7-UFH-9X19UPPER-GD16E14GFR9MMTG
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Blue Titanium, GD55GDR9FCAN9MMBT , MPN: GD55GDR9FCAN9MMBT , Code: 3Q7-UFH-9X19UPPER-GD55GDR9FCAN9MMBT
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Burnt Bronze, GD16E14GFR9MMBB , MPN: GD16E14GFR9MMBB , Code: 3Q7-UFH-9X19UPPER-GD16E14GFR9MMBB
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Blue Titanium, GD75E7GDR9MMBT , MPN: GD75E7GDR9MMBT , Code: 3Q7-UFH-9X19UPPER-GD75E7GDR9MMBT
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Tungsten Gray, GD55GDR9FCAN9MMTG , MPN: GD55GDR9FCAN9MMTG , Code: 3Q7-UFH-9X19UPPER-GD55GDR9FCAN9MMTG
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Blue Titanium, GD16E14GFR9MMBT , MPN: GD16E14GFR9MMBT , Code: 3Q7-UFH-9X19UPPER-GD16E14GFR9MMBT
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Tactical Grape, GD16E14GFR9MMGRP , MPN: GD16E14GFR9MMGRP , Code: 3Q7-UFH-9X19UPPER-GD16E14GFR9MMGRP
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Tactical Grape, GD55GDR9FCAN9MMGRP , MPN: GD55GDR9FCAN9MMGRP , Code: 3Q7-UFH-9X19UPPER-GD55GDR9FCAN9MMGRP
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Flat Dark Earth, GD16E14GFR9MMFDE , MPN: GD16E14GFR9MMFDE , Code: 3Q7-UFH-9X19UPPER-GD16E14GFR9MMFDE
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 5.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, Dimpled Flash Can, Burnt Bronze, GD55GDR9FCAN9MMBB , MPN: GD55GDR9FCAN9MMBB , Code: 3Q7-UFH-9X19UPPER-GD55GDR9FCAN9MMBB
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, Black, GD16E14GFR9MMBLK , MPN: GD16E14GFR9MMBLK , Code: 3Q7-UFH-9X19UPPER-GD16E14GFR9MMBLK

Grid Defense 9x19 Para Upper Receiver Unavailable & Discontinued Models

List of Unorderable Models

DEMO, Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Flat Dark Earth, GD75E7GDR9MMFDE , MPN: GD75E7GDR9MMFDE-DEMO , Code: 3Q7-UFH-9X19UPPER-GD75E7GDR9MMFDE-DEMO
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 16 inch, 4150 Light HBAR Barrel, 1-10 Twist, 14 inch M-LOK Rail, A2 Flash Hider, OD Green, GD16E14GFR9MMOD , MPN: GD16E14GFR9MMOD , Code: 3Q7-UFH-9X19UPPER-GD16E14GFR9MMOD
Grid Defense Complete Upper Receiver, 9mm 9x19 Para, 7.5 inch, 4150 Light HBAR Barrel, 1-10 Twist, 7 inch Octagon M-LOK Rail, A2 Flash Hider, Tungsten Gray, GD75E7GDR9MMTG , MPN: GD75E7GDR9MMTG , Code: 3Q7-UFH-9X19UPPER-GD75E7GDR9MMTG
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