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Sons of Liberty Gun Works M4-89 5.56 Half Complete Upper Receiver

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Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 10.5in, 9.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-10.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 10.5in, 9.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-10.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 10.5in, 9.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-10.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 16in, 15in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-16-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 11.5in, 10.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-11.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 11.5in, 10.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-11.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 11.5in, 10.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-11.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 12.5in, 11.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-12.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 14.5in, 13.75in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-14.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 13.7in, 13in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-13.7-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 13.7in, 13.75in, Combat Barrel, M89 Rail, P/W HUX XL Flash Hider, No BCG or CH, Black, M489UPPER-13.7-556-XL
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 16in, 15in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-16-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 16in, 15in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-16-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 16in, 15in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-16-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 16in, 15in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-16-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 12.5in, 11.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-12.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 12.5in, 11.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-12.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 12.5in, 11.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-12.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 12.5in, 11.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-12.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 14.5in, 13.75in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-14.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 13.7in, 13in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-13.7-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 14.5in, 13.75in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-14.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 13.7in, 13in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-13.7-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 14.5in, 13.75in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-14.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 13.7in, 13in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-13.7-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 14.5in, 13.75in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-14.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 13.7in, 13in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-13.7-556
1 of 1 videos
Sons of Liberty Gun Works Nox
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 10.5in, 9.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-10.5-556
1 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 10.5in, 9.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-10.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 10.5in, 9.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-10.5-556
2 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 10.5in, 9.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-10.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 10.5in, 9.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-10.5-556
3 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 10.5in, 9.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-10.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 16in, 15in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-16-556
4 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 16in, 15in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-16-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 11.5in, 10.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-11.5-556
5 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 11.5in, 10.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-11.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 11.5in, 10.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-11.5-556
6 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 11.5in, 10.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-11.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 11.5in, 10.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-11.5-556
7 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 11.5in, 10.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-11.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 12.5in, 11.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-12.5-556
8 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 12.5in, 11.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-12.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 14.5in, 13.75in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-14.5-556
9 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 14.5in, 13.75in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-14.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 13.7in, 13in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-13.7-556
10 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 13.7in, 13in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-13.7-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 13.7in, 13.75in, Combat Barrel, M89 Rail, P/W HUX XL Flash Hider, No BCG or CH, Black, M489UPPER-13.7-556-XL
11 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 13.7in, 13.75in, Combat Barrel, M89 Rail, P/W HUX XL Flash Hider, No BCG or CH, Black, M489UPPER-13.7-556-XL
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 16in, 15in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-16-556
12 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 16in, 15in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-16-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 16in, 15in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-16-556
13 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 16in, 15in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-16-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 16in, 15in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-16-556
14 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 16in, 15in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-16-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 16in, 15in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-16-556
15 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 16in, 15in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-16-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 12.5in, 11.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-12.5-556
16 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 12.5in, 11.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-12.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 12.5in, 11.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-12.5-556
17 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 12.5in, 11.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-12.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 12.5in, 11.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-12.5-556
18 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 12.5in, 11.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-12.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 12.5in, 11.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-12.5-556
19 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 12.5in, 11.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-12.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 14.5in, 13.75in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-14.5-556
20 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 14.5in, 13.75in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-14.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 13.7in, 13in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-13.7-556
21 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 13.7in, 13in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-13.7-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 14.5in, 13.75in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-14.5-556
22 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 14.5in, 13.75in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-14.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 13.7in, 13in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-13.7-556
23 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 13.7in, 13in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-13.7-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 14.5in, 13.75in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-14.5-556
24 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 14.5in, 13.75in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-14.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 13.7in, 13in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-13.7-556
25 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 13.7in, 13in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-13.7-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 14.5in, 13.75in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-14.5-556
26 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 14.5in, 13.75in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-14.5-556
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 13.7in, 13in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-13.7-556
27 of 27 images
Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 13.7in, 13in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-13.7-556

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Questions & Answers
is the muzzle pin and welded

Wouldn’t be much point on a 10.5” barrel… Or 11.5 inch barrel, which is what I suspect it is… it says in the description 10.5 inch barrel with a 10.5 inch hand guard… that can’t be right unless there’s something I’m missing…

by Paul, Verified Owner, January 3, 2026
See 3 More Answers
Is this a cold hammer forged barrel?

The Combat Barrel part is the name they have for Cold Hammer forged barrels not sure if this is the V1 or V2 though

by Garrett Reed, Verified Owner, January 12, 2025
View All Q&A You Have a Question? Ask!

Product Discontinued by Manufacturer

Sons of Liberty Gun Works M4-89 5.56 Half Complete Upper Receiver has been discontinued by Sons of Liberty Gun Works 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!

ATTENTION! We currently do not ship this product to P.O. Boxes, AK, CA, CT, DE, HI, MA, NJ, NY, U.S. Territories, or select Colorado locations. Please see our policies for more information or a detailed list of locations.

Product Info for Sons of Liberty Gun Works M4-89 5.56 Half Complete Upper Receiver

If you're searching for a fantastic price on the Sons of Liberty Gun Works M4-89 5.56 Half Complete Upper Receiver, then you have turned up at the right location..image

Formulated using some of the most strong and long lasting components in existence, these AR15 Upper Receivers by Sons of Liberty Gun Works can provide an item which will give many years of dependability.

Sons of Liberty Gun Works has been making superior quality merchandise for a number of years, and the Sons of Liberty Gun Works M4-89 5.56 Half Complete Upper Receiver is their particular means of revealing how much they care.

At OpticsPlanet, we make it our obligation to obtain the most suitable solution for your specifications, and presenting the Sons of Liberty Gun Works M4-89 5.56 Half Complete Upper Receiver is a thing that we are pleased to offer.

Package Contents:

  • Sons of Liberty Gun Works M4-89 5.56 Half Complete Upper Receiver

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First Breach 5.56 NATO 55 Grain Full Metal Jacket Boattail New C220 Brass Cased Rifle Ammo, 20 Rounds, 556 55 loaded
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(1)
List: $19.99 (Save 38%)
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Best Rated
Hornady BLACK 5.56x45mm NATO 62 grain Full Metal Jacket Brass Cased Centerfire Rifle Ammo, 20 Rounds, 81263
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List: $24.99
$24.49
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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
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List: $42.99 (Save 16%)
$35.99
$1.80/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
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List: $47.99 (Save 36%)
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$1.52/Round
PPU 5.56x45mm NATO 0 grain Brass Cased Blank Ammo, 20 Rounds, PPB556
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Hornady Frontier 5.56x45mm NATO 75 grain Boat Tail Hollow Point (BTHP) Brass Centerfire Rifle Ammunition
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As Low As (Save Up to 17%)
$17.99
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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
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 16%)
$16.49
$0.82/Round
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
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 17%)
$13.49
$0.65 - $0.67/Round
See all 3 models
Newly Added
Atomic Ammunition Cycling Defense AD77 5.56x45mm NATO 77grain Boat Tail Hollow Point Brass Cased Rifle Ammunition
Atomic Ammunition Cycling Defense AD77 5.56x45mm NATO 77grain Boat Tail Hollow Point Brass Cased Rifle Ammunition
As Low As (Save Up to 10%)
$32.00
$1.60/Round
See all 2 models
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 $39.80)
$572.49
$0.57/Round
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
(1)
List: $131.99 (Save 31%)
$90.99
$0.76/Round
PPU PPRM5561M 5.56X45 55 FMJBT RNGMSTR
PPU PPRM5561M 5.56X45 55 FMJBT RNGMSTR
List: $936.49 (Save $77.00)
$859.49
$0.86/Round
Magtech 5.56x45mm Ball M193 - 556ACS
Magtech 5.56x45mm Ball M193 - 556ACS
List: $732.00 (Save $65.01)
$666.99
$0.67/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
PMC Ammunition X-Tac Rifle Ammo 5.56 NATO 62 gr Green Tip 1000/ct, 5.56 M855 Case
PMC Ammunition X-Tac Rifle Ammo 5.56 NATO 62 gr Green Tip 1000/ct, 5.56 M855 Case
List: $739.99 (Save 13%)
$645.19
$0.65/Round
Newly Added
Hornady Frontier 5.56x45mm NATO 55 Grain Brass Cased Full Metal Jacket Rifle Ammo, 250 Rounds, FR604
Hornady Frontier 5.56x45mm NATO 55 Grain Brass Cased Full Metal Jacket Rifle Ammo, 250 Rounds, FR604
List: $203.99 (Save 19%)
$164.49
$0.66/Round
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: $179.49 (Save 25%)
$134.99
$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 18%)
$14.49
$0.72/Round
Hornady Frontier 5.56x45mm NATO 55 grain Hollow Point Brass Cased Centerfire Rifle Ammo, 150 Rounds, FR2415
Hornady Frontier 5.56x45mm NATO 55 grain Hollow Point Brass Cased Centerfire Rifle Ammo, 150 Rounds, FR2415
(3)
List: $128.25 (Save 17%)
$105.99
$0.71/Round
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Ammo Boxes

1–6 / 6
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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 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
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
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 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
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
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Sons of Liberty Gun Works M4-89 5.56 Half Complete Upper Receiver Unavailable & Discontinued Models

List of Unorderable Models

  • Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 10.5in, 9.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-10.5-556 , MPN: M489UPPER-10.5-556 , UPC: 785939519143 , Code: 40W-UFH-556M4H-M489UPPER-10-5-556
  • Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 16in, 15in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-16-556 , MPN: M489UPPER-16-556 , UPC: 785939519181 , Code: 40W-UFH-556M4H-M489UPPER-16-556
  • Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 11.5in, 10.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-11.5-556 , MPN: M489UPPER-11.5-556 , UPC: 785939519150 , Code: 40W-UFH-556M4H-M489UPPER-11-5-556
  • Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 12.5in, 11.5in, Combat Barrel, M89 Rail, A2 Flash Hider, No BCG or CH, Black, M489UPPER-12.5-556 , MPN: M489UPPER-12.5-556 , UPC: 676821222589 , Code: 40W-UFH-556M4H-M489UPPER-12-5-556
  • Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 13.7in, 13in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-13.7-556 , MPN: M489UPPER-13.7-556 , UPC: 785939519167 , Code: 40W-UFH-556M4H-M489UPPER-13-7-556
  • Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 13.7in, 13.75in, Combat Barrel, M89 Rail, P/W HUX XL Flash Hider, No BCG or CH, Black, M489UPPER-13.7-556-XL , MPN: M489UPPER-13.7-556-XL , UPC: 647535030029 , Code: 40W-UFH-556M4H-M489UPPER-13-7-556-XL
  • Sons of Liberty Gun Works Half Complete Upper Receiver, M4-89, 5.56mm, 14.5in, 13.75in, Combat Barrel, M89 Rail, P/W NOX9 Flash Hider, No BCG or CH, Black, M489UPPER-14.5-556 , MPN: M489UPPER-14.5-556 , UPC: 785939519174 , Code: 40W-UFH-556M4H-M489UPPER-14-5-556
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Last updated 2026-08-01 UTC.