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Grid Defense Complete Upper Receiver

Grid Defense Complete Upper Receiver, Black, GD16E14GDR556SSDD-BLK
Grid Defense Complete Upper Receiver, Burnt Bronze, GD16E14GDR556SSDD-BB
Grid Defense Complete Upper Receiver, Blue Titanium, GD16E14GDR556SSDD-BT
Grid Defense Complete Upper Receiver, FDE, GD16E14GDR556SSDD-FDE
Grid Defense Complete Upper Receiver, Tactical Grape, GD16E14GDR556SSDD-GRP
Grid Defense Complete Upper Receiver, OD Green, GD16E14GDR556SSDD-OD
Grid Defense Complete Upper Receiver, Tungsten Gray, GD16E14GDR556SSDD-TG
Grid Defense Complete Upper Receiver, Black, GD16E14GDR556SSDD-BLK
Grid Defense Complete Upper Receiver, Burnt Bronze, GD16E14GDR556SSDD-BB
Grid Defense Complete Upper Receiver, Blue Titanium, GD16E14GDR556SSDD-BT
Grid Defense Complete Upper Receiver, FDE, GD16E14GDR556SSDD-FDE
Grid Defense Complete Upper Receiver, Tactical Grape, GD16E14GDR556SSDD-GRP
Grid Defense Complete Upper Receiver, OD Green, GD16E14GDR556SSDD-OD
Grid Defense Complete Upper Receiver, Tungsten Gray, GD16E14GDR556SSDD-TG
Grid Defense Complete Upper Receiver, Black, GD16E14GDR556SSDD-BLK
1 of 14 images
Grid Defense Complete Upper Receiver, Black, GD16E14GDR556SSDD-BLK
Grid Defense Complete Upper Receiver, Burnt Bronze, GD16E14GDR556SSDD-BB
2 of 14 images
Grid Defense Complete Upper Receiver, Burnt Bronze, GD16E14GDR556SSDD-BB
Grid Defense Complete Upper Receiver, Blue Titanium, GD16E14GDR556SSDD-BT
3 of 14 images
Grid Defense Complete Upper Receiver, Blue Titanium, GD16E14GDR556SSDD-BT
Grid Defense Complete Upper Receiver, FDE, GD16E14GDR556SSDD-FDE
4 of 14 images
Grid Defense Complete Upper Receiver, FDE, GD16E14GDR556SSDD-FDE
Grid Defense Complete Upper Receiver, Tactical Grape, GD16E14GDR556SSDD-GRP
5 of 14 images
Grid Defense Complete Upper Receiver, Tactical Grape, GD16E14GDR556SSDD-GRP
Grid Defense Complete Upper Receiver, OD Green, GD16E14GDR556SSDD-OD
6 of 14 images
Grid Defense Complete Upper Receiver, OD Green, GD16E14GDR556SSDD-OD
Grid Defense Complete Upper Receiver, Tungsten Gray, GD16E14GDR556SSDD-TG
7 of 14 images
Grid Defense Complete Upper Receiver, Tungsten Gray, GD16E14GDR556SSDD-TG
Grid Defense Complete Upper Receiver, Black, GD16E14GDR556SSDD-BLK
8 of 14 images
Grid Defense Complete Upper Receiver, Black, GD16E14GDR556SSDD-BLK
Grid Defense Complete Upper Receiver, Burnt Bronze, GD16E14GDR556SSDD-BB
9 of 14 images
Grid Defense Complete Upper Receiver, Burnt Bronze, GD16E14GDR556SSDD-BB
Grid Defense Complete Upper Receiver, Blue Titanium, GD16E14GDR556SSDD-BT
10 of 14 images
Grid Defense Complete Upper Receiver, Blue Titanium, GD16E14GDR556SSDD-BT
Grid Defense Complete Upper Receiver, FDE, GD16E14GDR556SSDD-FDE
11 of 14 images
Grid Defense Complete Upper Receiver, FDE, GD16E14GDR556SSDD-FDE
Grid Defense Complete Upper Receiver, Tactical Grape, GD16E14GDR556SSDD-GRP
12 of 14 images
Grid Defense Complete Upper Receiver, Tactical Grape, GD16E14GDR556SSDD-GRP
Grid Defense Complete Upper Receiver, OD Green, GD16E14GDR556SSDD-OD
13 of 14 images
Grid Defense Complete Upper Receiver, OD Green, GD16E14GDR556SSDD-OD
Grid Defense Complete Upper Receiver, Tungsten Gray, GD16E14GDR556SSDD-TG
14 of 14 images
Grid Defense Complete Upper Receiver, Tungsten Gray, GD16E14GDR556SSDD-TG

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Questions & Answers
Will this bolt on to a Colt M4 Ar15 lower? Expert Answer

Yes, it will.

by Jonathan D., Gear Expert, March 20, 2020
with bolt and carrier group or not?? Expert Answer

These uppers do not include a BCG or charging handle.

by Jonathan D., Gear Expert, November 15, 2019
View All Q&A You Have a Question? Ask!
Customer Reviews
Most Recent Reviews
WOW you won't believe it by Bam Bam, Verified Owner, February 4, 2020
I was updating my first AR and was poking around through all the products; then ran across this combo. Bought it when I saw it because of the ridiculously GREAT price, stainless, Diamond Dimpled; everything. For me I didn't think I would find ALL t...
Read More...
Read 1 Review

Product Discontinued by Manufacturer

Grid Defense Complete Upper Receiver has been discontinued by Grid Defense and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Gun Parts, AR 15 Parts, Rifle Parts, AR15 Upper Receivers yourself to try and find the perfect replacement for you!

Please note, this Complete Upper Receiver does not include a Bolt Carrier Group or Charging Handle.

Product Info for Grid Defense Complete Upper Receiver

Manufactured to be described as a very good item for pretty much any person, we're positive you'll appreciate the Grid Defense Complete Upper Receiver.image

These AR15 Upper Receivers from the professional product specialists at Grid Defense are fashioned by using heavy duty and reliable components, to be able to provide you with product that is going to be powerful for countless years. Manufactured utilizing some of the very best available substances and engineering, these AR15 Upper Receivers through the product experts at Grid Defense will last an unbelievably long time.

Grid Defense has been making superior quality products for a very long time, and the Grid Defense Complete Upper Receiver is their particular manner of revealing just how much they care.

At OpticsPlanet, we ensure that it is our obligation to obtain the perfect solution for all of your requirements, and featuring the Grid Defense Complete Upper Receiver is a thing that we're pleased to offer.

Package Contents:

  • Grid Defense 5.56 Complete Upper Receiver w/Diamond Dimpled Barrel

Ammunition

1–39 / 39
Previous
Best Rated
PMC Ammunition X-TAC, 5.56x45mm NATO, 55 grain, Full Metal Jacket, Brass, Centerfire Rifle Ammo, 20, 556X
PMC Ammunition X-TAC, 5.56x45mm NATO, 55 grain, Full Metal Jacket, Brass, Centerfire Rifle Ammo, 20, 556X
(65)
List: $15.99 (Save 25%)
$11.99
$0.60/Round
Best Rated
PMC Ammunition X-TAC Light Armor Piercing 5.56x45mm NATO 62 Grain Brass Cased Centerfire Rifle Ammunition
PMC Ammunition X-TAC Light Armor Piercing 5.56x45mm NATO 62 Grain Brass Cased Centerfire Rifle Ammunition
(112)
As Low As (Save Up to 17%)
$12.49
$0.62/Round
See all 2 models
Up to 15% Coupon
Hornady BLACK 5.56x45mm NATO 75 Grain InterLock HD SBR Centerfire Rifle Ammunition
Hornady BLACK 5.56x45mm NATO 75 Grain InterLock HD SBR Centerfire Rifle Ammunition
(20)
As Low As (Save Up to 29%)
$25.99
$1.30/Round
See all 2 models
PMC 556M55BP Battle Pack 5.56 NATO 62 Gr Light Armor Piercing LAP
PMC 556M55BP Battle Pack 5.56 NATO 62 Gr Light Armor Piercing LAP
List: $89.00 (Save $6.51)
$82.49
$0.69/Round
PPU PPRM5561M 5.56X45 55 FMJBT RNGMSTR
PPU PPRM5561M 5.56X45 55 FMJBT RNGMSTR
List: $866.49 (Save 18%)
$710.49
$0.71/Round
On Sale
PPU PPRM5561 Rangemaster 5.56x45mm NATO 55 Gr Full Metal Jacket Boat Tail FMJB
PPU PPRM5561 Rangemaster 5.56x45mm NATO 55 Gr Full Metal Jacket Boat Tail FMJB
List: $23.99 (Save 48%)
$12.49
$0.62/Round
Fort Scott Munitions .5.56 NATO 40 Grain CNC Machined Copper Brass Rifle Ammo, 20 Rounds, 556-040-SCV2
Fort Scott Munitions .5.56 NATO 40 Grain CNC Machined Copper Brass Rifle Ammo, 20 Rounds, 556-040-SCV2
List: $28.06 (Save $1.07)
$26.99
$1.35/Round
First Breach 5.56 NATO 55 Grain Full Metal Jacket Boattail New C220 Brass Cased Rifle Ammo, 20 Rounds, 556 55 loaded
First Breach 5.56 NATO 55 Grain Full Metal Jacket Boattail New C220 Brass Cased Rifle Ammo, 20 Rounds, 556 55 loaded
(1)
List: $19.99 (Save 42%)
$11.59
$0.58/Round
Fort Scott Munitions, 5.56x45mm NATO, 55 grain, Copper Solid, Brass, Centerfire Rifle Ammo, 20, 556-055-SCV
Fort Scott Munitions, 5.56x45mm NATO, 55 grain, Copper Solid, Brass, Centerfire Rifle Ammo, 20, 556-055-SCV
List: $28.32
$27.49
$1.37/Round
AmmoDyn 5.56x45mm NATO 55 grain Full Metal Jacket Brass Cased Rifle Ammo, 30 Rounds, PM-55655-30
AmmoDyn 5.56x45mm NATO 55 grain Full Metal Jacket Brass Cased Rifle Ammo, 30 Rounds, PM-55655-30
List: $26.95 (Save 11%)
$23.99
$0.80/Round
First Breach 5.56 NATO 55 Grain Full Metal Jacket Boattail New C220 Brass Cased Rifle Ammo, 1000 Rounds, 50009
First Breach 5.56 NATO 55 Grain Full Metal Jacket Boattail New C220 Brass Cased Rifle Ammo, 1000 Rounds, 50009
(1)
List: $612.29 (Save 14%)
$526.99
$0.53/Round
Fort Scott Munitions 5.56 NATO Copper 62 Grain Centerfire Rifle Ammo, 20 Rounds, 556-062-SCV1
Fort Scott Munitions 5.56 NATO Copper 62 Grain Centerfire Rifle Ammo, 20 Rounds, 556-062-SCV1
(2)
List: $28.41
$27.99
$1.40/Round
Best Rated
Hornady BLACK 5.56x45mm NATO 62 grain Full Metal Jacket Brass Cased Centerfire Rifle Ammo, 20 Rounds, 81263
Hornady BLACK 5.56x45mm NATO 62 grain Full Metal Jacket Brass Cased Centerfire Rifle Ammo, 20 Rounds, 81263
(8)
List: $24.99 (Save $1.50)
$23.49
$1.17/Round
PMC Ammunition X-Tac 5.56x45mm NATO 55 Grain Full Metal Jacket Rifle Ammo, Metal Box, 840 Rounds, 1102741
PMC Ammunition X-Tac 5.56x45mm NATO 55 Grain Full Metal Jacket Rifle Ammo, Metal Box, 840 Rounds, 1102741
List: $632.49 (Save $49.50)
$582.99
$0.69/Each
PPU 5.56x45mm NATO 0 grain Brass Cased Blank Ammo, 20 Rounds, PPB556
PPU 5.56x45mm NATO 0 grain Brass Cased Blank Ammo, 20 Rounds, PPB556
List: $22.49 (Save 22%)
$17.49
$0.87/Round
Best Rated
Hornady Frontier 5.56x45mm NATO 55 Grain Full Metal Jacket Brass Rifle Ammunition
Hornady Frontier 5.56x45mm NATO 55 Grain Full Metal Jacket Brass Rifle Ammunition
(47)
As Low As (Save Up to 21%)
$12.99
$0.62 - $0.65/Round
See all 3 models
Veteran Ammo Defense 5.56x45mm NATO 62 Grain Hollow Point Centerfire Pistol Ammo, 20 Rounds, HMBX-556-24
Veteran Ammo Defense 5.56x45mm NATO 62 Grain Hollow Point Centerfire Pistol Ammo, 20 Rounds, HMBX-556-24
List: $49.99 (Save 23%)
$38.49
$1.92/Round
Best Rated
Winchester USA 5.56x45mm NATO 55 grain Ball (M193) Full Metal Jacket Brass Centerfire Rifle Ammunition
Winchester USA 5.56x45mm NATO 55 grain Ball (M193) Full Metal Jacket Brass Centerfire Rifle Ammunition
(147)
As Low As (Save Up to 48%)
$13.49
$0.66 - $0.69/Round
See all 7 models
Best Rated
Hornady Frontier 5.56x45mm NATO 75 grain Boat Tail Hollow Point (BTHP) Brass Centerfire Rifle Ammunition
Hornady Frontier 5.56x45mm NATO 75 grain Boat Tail Hollow Point (BTHP) Brass Centerfire Rifle Ammunition
(29)
As Low As (Save Up to 19%)
$17.49
$0.87/Round
See all 2 models
13% Coupon
Freedom Munitions 5.56x45mm NATO 55 Grain Full Metal Jacket Brass Rifle Ammunition
Freedom Munitions 5.56x45mm NATO 55 Grain Full Metal Jacket Brass Rifle Ammunition
(1)
As Low As (Save 12%)
$29.49
$0.58 - $0.59/Round
See all 2 models
Veteran Ammo Defense 5.56x45mm NATO 62 Grain Full Metal Jacket Centerfire Pistol Ammo, 20 Rounds, HMBX-556-25
Veteran Ammo Defense 5.56x45mm NATO 62 Grain Full Metal Jacket Centerfire Pistol Ammo, 20 Rounds, HMBX-556-25
List: $49.99 (Save 22%)
$38.99
$1.95/Round
Newly Added
Federal American Eagle 5.56x45mm NATO 55 Grain Full Metal Jacket Boat Tail Brass Cased Rifle Ammunition
Federal American Eagle 5.56x45mm NATO 55 Grain Full Metal Jacket Boat Tail Brass Cased Rifle Ammunition
List: $83.99 (Save 11%)
$74.99
$0.37/Round
See all 1 models
Best Rated
Winchester USA 5.56x45mm NATO 62 grain Green Tip M855 Full Metal Jacket Boat Tail FMJBT Brass Centerfire Rifle Ammunition
Winchester USA 5.56x45mm NATO 62 grain Green Tip M855 Full Metal Jacket Boat Tail FMJBT Brass Centerfire Rifle Ammunition
(132)
As Low As (Save Up to 50%)
$13.99
$0.69 - $0.72/Round
See all 7 models
Hornady Frontier 5.56x45mm NATO 55 Grain Hollow Point Centerfire Rifle Ammunition
Hornady Frontier 5.56x45mm NATO 55 Grain Hollow Point Centerfire Rifle Ammunition
(3)
As Low As (Save Up to 22%)
$13.49
$0.67 - $0.68/Round
See all 2 models
Best Rated
Hornady Frontier 5.56x45mm NATO 68 grain Boat-Tail Hollow Point Brass Cased Centerfire Rifle Ammo, 20 Rounds, FR310
Hornady Frontier 5.56x45mm NATO 68 grain Boat-Tail Hollow Point Brass Cased Centerfire Rifle Ammo, 20 Rounds, FR310
(15)
List: $19.60 (Save 18%)
$15.99
$0.80/Round
Best Rated
Barnes Vor-TxRifle Cartridges, 5.56x45mm NATO, TSX Boat Tail, 70 Grain, 20 - Rounds, *31191
Barnes Vor-TxRifle Cartridges, 5.56x45mm NATO, TSX Boat Tail, 70 Grain, 20 - Rounds, *31191
(14)
List: $40.99 (Save $1.00)
$39.99
$2.00/Round
Best Rated
Barnes Vor-TxRifle Cartridges, 5.56x45mm NATO, TSX Boat Tail, 62 Grain, 20 - Rounds, *31190
Barnes Vor-TxRifle Cartridges, 5.56x45mm NATO, TSX Boat Tail, 62 Grain, 20 - Rounds, *31190
(10)
List: $39.99 (Save $1.00)
$38.99
$1.95/Round
Magtech 5.56x45mm Ball M193 - 556ACS
Magtech 5.56x45mm Ball M193 - 556ACS
List: $732.00 (Save $65.01)
$666.99
$0.67/Round
Hornady Frontier 5.56x45mm NATO 62 grain Full Metal Jacket Brass Cased Centerfire Rifle Ammo, 20 Rounds, FR260
Hornady Frontier 5.56x45mm NATO 62 grain Full Metal Jacket Brass Cased Centerfire Rifle Ammo, 20 Rounds, FR260
(2)
List: $17.60 (Save 21%)
$13.99
$0.70/Round
Fiocchi Range Dynamics 556 NATO 55 Grain FMJ Brass Rifle Ammo, 50 Round, 556M193L
Fiocchi Range Dynamics 556 NATO 55 Grain FMJ Brass Rifle Ammo, 50 Round, 556M193L
(2)
List: $40.99 (Save 10%)
$36.99
$0.74/Round
Barnes Precision MatchRifle Cartridges, 5.56x45mm NATO, Match Burner Open Tip Match Boat Tail, 69 Grain, 20 - Rounds, *30846
Barnes Precision MatchRifle Cartridges, 5.56x45mm NATO, Match Burner Open Tip Match Boat Tail, 69 Grain, 20 - Rounds, *30846
List: $39.99 (Save $1.00)
$38.99
$1.95/Round
Winchester Lake City 5.56 MM M855 FMJ WIN 62 GR 50 Green Tip 50-20RD Box 1000 rds tot, WM855K Case
Winchester Lake City 5.56 MM M855 FMJ WIN 62 GR 50 Green Tip 50-20RD Box 1000 rds tot, WM855K Case
List: $869.99 (Save 10%)
$786.99
$0.79/Round
Atomic Ammunition Atomic Ammo 5.56x45 500 Rounds 62gr. Hornady Fmj Bulk-pack
Atomic Ammunition Atomic Ammo 5.56x45 500 Rounds 62gr. Hornady Fmj Bulk-pack
List: $629.99 (Save 10%)
$568.49
$1.14/Round
Best Rated
Barnes Precision 5.56x45mm NATO 85 grain Burner Open Tip Match Boat Tail Centerfire Rifle Ammo, 20 Rounds, *30848
Barnes Precision 5.56x45mm NATO 85 grain Burner Open Tip Match Boat Tail Centerfire Rifle Ammo, 20 Rounds, *30848
(5)
List: $39.99 (Save $1.00)
$38.99
$1.95/Round
Best Rated
Hornady Superformance 5.56x45mm NATO 75 grain Boat-Tail Hollow Point Match Brass Cased Centerfire Rifle Ammo, 20 Rounds, 81264
Hornady Superformance 5.56x45mm NATO 75 grain Boat-Tail Hollow Point Match Brass Cased Centerfire Rifle Ammo, 20 Rounds, 81264
(8)
List: $41.40 (Save 19%)
$33.49
$1.67/Round
Hornady American Gunner Rifle Ammo 5.56 NATO 55 gr HP 3240 fps 247/ct, 80279
Hornady American Gunner Rifle Ammo 5.56 NATO 55 gr HP 3240 fps 247/ct, 80279
List: $263.99 (Save 20%)
$211.99
$0.85/Each
Aguila Ammunition 5.56 NATO 55 Grain Full Metal Jacket Boat Tail, Brass Case, Rifle Ammo, 300 Rounds, 1E556126
Aguila Ammunition 5.56 NATO 55 Grain Full Metal Jacket Boat Tail, Brass Case, Rifle Ammo, 300 Rounds, 1E556126
List: $192.59
$191.99
$0.64/Round
PMC 556XBP Battle Pack 5.56 NATO 55 Gr Full Metal Jacket Boat Tail FMJBT
PMC 556XBP Battle Pack 5.56 NATO 55 Gr Full Metal Jacket Boat Tail FMJBT
(1)
List: $155.00 (Save 13%)
$134.99
$0.67/Round
Magtech 5.56X45 M193 55 Grain Full Metal Jacket Brass Cased Rifle Ammo, 50 Rounds, 556A
Magtech 5.56X45 M193 55 Grain Full Metal Jacket Brass Cased Rifle Ammo, 50 Rounds, 556A
(1)
List: $32.79 (Save $2.80)
$29.99
$0.60/Round
Next

Ammo Boxes

1–6 / 6
Previous
Berrys 29682 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Smoke Lid W/Black Bottom
Berrys 29682 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Smoke Lid W/Black Bottom
(1)
List: $5.39 (Save 41%)
$3.19
Berrys 11664 005 Ammo Box 223 Rem,5.56x45mm NATO 100rd Smoke Lid W/Black Bottom
Berrys 11664 005 Ammo Box 223 Rem,5.56x45mm NATO 100rd Smoke Lid W/Black Bottom
List: $6.99 (Save 21%)
$5.49
Berrys 86410 005 Ammo Box 223 Rem,5.56x45mm NATO 100rd Blue Lid W/Black Bottom
Berrys 86410 005 Ammo Box 223 Rem,5.56x45mm NATO 100rd Blue Lid W/Black Bottom
List: $6.99 (Save 21%)
$5.49
Berrys 79462 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Clear Lid W/Black Bottom
Berrys 79462 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Clear Lid W/Black Bottom
List: $6.49 (Save 51%)
$3.19
MTM Ammo Rack w 4 RS-50-24 Ammo boxes, Dark Earth/Clear Blue, ARRS
MTM Ammo Rack w 4 RS-50-24 Ammo boxes, Dark Earth/Clear Blue, ARRS
(2)
$42.29
Berrys 44661 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Blue Lid W/Black Bottom
Berrys 44661 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Blue Lid W/Black Bottom
List: $6.49 (Save 51%)
$3.19
Next

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Grid Defense Complete Upper Receiver Unavailable & Discontinued Models

List of Unorderable Models

  • Grid Defense Complete Upper Receiver, Black, GD16E14GDR556SSDD-BLK , MPN: GD16E14GDR556SSDD-BLK , Code: 3Q7-URC-556DIMPLED-GD16E14GDR556SSDD-BLK
  • Grid Defense Complete Upper Receiver, OD Green, GD16E14GDR556SSDD-OD , MPN: GD16E14GDR556SSDD-OD , Code: 3Q7-URC-556DIMPLED-GD16E14GDR556SSDD-OD
  • Grid Defense Complete Upper Receiver, Burnt Bronze, GD16E14GDR556SSDD-BB , MPN: GD16E14GDR556SSDD-BB , Code: 3Q7-URC-556DIMPLED-GD16E14GDR556SSDD-BB
  • Grid Defense Complete Upper Receiver, Tungsten Gray, GD16E14GDR556SSDD-TG , MPN: GD16E14GDR556SSDD-TG , Code: 3Q7-URC-556DIMPLED-GD16E14GDR556SSDD-TG
  • Grid Defense Complete Upper Receiver, Blue Titanium, GD16E14GDR556SSDD-BT , MPN: GD16E14GDR556SSDD-BT , Code: 3Q7-URC-556DIMPLED-GD16E14GDR556SSDD-BT
  • Grid Defense Complete Upper Receiver, FDE, GD16E14GDR556SSDD-FDE , MPN: GD16E14GDR556SSDD-FDE , Code: 3Q7-URC-556DIMPLED-GD16E14GDR556SSDD-FDE
  • Grid Defense Complete Upper Receiver, Tactical Grape, GD16E14GDR556SSDD-GRP , MPN: GD16E14GDR556SSDD-GRP , Code: 3Q7-URC-556DIMPLED-GD16E14GDR556SSDD-GRP
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