Starter East India 5.56x45 Assembled Upper Medium 16" Bbl W/Rail
$475.00 at Brownells
In stock
Assembled M4-L89 5.56x45 NATO 13.7"bbl 13.75" L89 Rail W/Huxwrx XL
Sons Of Liberty Gun Works · Upper Receiver
No ratings yetBest price
$950.00at MidwayUSA
Out of stock checked Oct 23, 2026
In stock now instead
- Starter East India 5.56x45 Assembled Upper Medium 16" Bbl W/Rail $475.00at Brownells
- Dark Storm Industries DS-15 Complete Upper 16" Lightning 5.56 T… $949.95at OpticsPlanet
- Patriot Ordnance Factory Minuteman 10.5" Complete Upper 5.56x45… $947.81at Kentucky Gun Co
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| MidwayUSA Best price | $950.00checked Oct 23, 2026 | Out of stock | Buy at MidwayUSA | |
| Brownells | $1,021.25checked Oct 23, 2026 | Out of stock | Buy at Brownells |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Similar upper receivers in stock
This part is out of stock at every store we track. These similar upper receivers are in stock, with today's prices.
Dark Storm Industries DS-15 Complete Upper 16" Lightning 5.56 Threaded Black 5.56
$949.95 at OpticsPlanet
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Patriot Ordnance Factory Minuteman 10.5" Complete Upper 5.56x45mm, Black
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Price history
Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Brownells | $1,021.25 | $1,021.25 | $1,021.25 |
| MidwayUSA | $950.00 | $950.00 | $950.00 |
Since Sep 28, 2026.
About this part
The Assembled M4-L89 5.56x45 NATO 13.7"bbl 13.75" L89 Rail W/Huxwrx XL is an AR-15 complete upper receiver from Sons Of Liberty Gun Works. It's sold by 2 stores, from $950.00 to $1,021.25.
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Barrel length
- 13.7" · Handguards
- Handguard length
- 13.75" · Barrels
Specifications
- Manufacturer
- Sons Of Liberty Gun Works
- Type
- Complete
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
From the manufacturer
The SOLGW M4-L89 Upper Half comes with SOLGW's Cold Hammer Forged version of their Combat Barrel and L89 Rail, and is available in 10.5", 11.5", 13.7", 13.9" and 14.5" 5.56, with Huxwrx, NOX or ASR muzzle devices. No BCG or C/H * 13.7", 13.9", and 14.5" barrels come pinned and welded flash hiders for OAL of 16"* Mfg: Sons Of Liberty Gun Works
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