Rock River Arms Completed Pistol Upper Receiver A4 .223/5.56mm 20 Inch Barrel Standart Profile 1-9 Twist 1/2-28 Thread A2 Handguard A2 Flash Hider
$418.19 at MidwayUSA · 2 stores
In stock Sale
Groups AR-15 16" Upper Receiver Mid-Length M-LOK Black
Foxtrot Mike Products · Upper Receiver
No ratings yetBest price
$419.99at Brownells
Out of stock checked Oct 24, 2026
In stock now instead
- Rock River Arms Completed Pistol Upper Receiver A4 .223/5.56mm … $418.19at MidwayUSA
- LBE READY BUILD KIT 7.5 CHF BBL $415.49at Ammunition Depot
- DPMS 16" DPM4 5.56 Quad-Rail Upper $410.31at OpticsPlanet
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells | $419.99checked Oct 24, 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.
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This part is out of stock at every store we track. These similar upper receivers are in stock, with today's prices.
LBE READY BUILD KIT 7.5 CHF BBL
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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 | $419.99 | $419.99 | $419.99 |
Since Sep 28, 2026.
About this part
The Groups AR-15 16" Upper Receiver Mid-Length M-LOK Black is a 16" 5.56 / .223 upper receiver from Foxtrot Mike Products. One store lists it, Brownells at $419.99.
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Gas system
- Mid-length · Handguards
- Barrel length
- 16" · Handguards
Specifications
- Manufacturer
- Foxtrot Mike Products
- Color
- Black
- Platform
- AR-15
- Caliber
- .223 Wylde
From the manufacturer
Exclusive to Brownells, the FM Products 223 Wylde Upper Receivers! Available in both 12.5" and 16" lengths. These upper receivers are a monolithic design featuring M-LOK handguards with an all black finish. Uppers come assembled with barrel and handguard installed. Does not include bolt carrier group or charging handle. 12.5" Upper Receiver features Carbine Length Gas Tube 16" Upper Receiver features Mid-Length Gas Tube Monolithic Design Billet Machined .625 Low Profile Gas Block 1/8 Twist Lightweight Barrel Chambered in .223 Wylde A2 Muzzle Device, A 1/2-28 Threads M-LOK Handguard M4 Upper Receiver w Mfg: Foxtrot Mike Products
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