Rock River Arms Completed Upper Receiver .223/5.56mm 16 Inch Barrel Carbine Profile 1/2-28 Thread Car Handguard A2 Flash Hide w/Gas Block Black
Rock River Arms · Upper Receiver
No ratings yetFits 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
- Carbine · Handguards
- Muzzle thread
- 1/2x28 · Muzzle devices
- Barrel length
- 16" · Handguards
Specifications
- Manufacturer
- Rock River Arms
- Color
- Black
- Type
- Complete
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
- Gas system
- Carbine
- Barrel length
- 16"
- Twist rate
- 1:9
- Thread pattern
- ½ x 28
- Length
- 6"
- Weight
- 70.4 oz
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| MidwayUSA Best price | $486.99checked Nov 13, 2026 | In stock | Buy at MidwayUSA | |
| OpticsPlanet | $439.99Salechecked Nov 12, 2026 | Out of stock | Buy at OpticsPlanet |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Lowest in-stock price in the last 30 days: $399.49 at MidwayUSA. Dashed line = out of stock. Tracking since Oct 16, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| MidwayUSA | $486.99 | $399.49 | $486.99 |
| OpticsPlanet | $439.99 | $439.99 | $439.99 |
Since Oct 16, 2026.
About this part
The Rock River Arms Completed Upper Receiver .223/5.56mm 16 Inch Barrel Carbine Profile 1/2-28 Thread Car Handguard A2 Flash Hide w/Gas Block Black is an AR-15 complete upper receiver from Rock River Arms. It's sold by 2 stores (1 in stock), from $439.99 to $486.99. The lowest in-stock price in the last 30 days was $399.49 at MidwayUSA.
From the manufacturer
Rock River Arms Completed Upper Receiver .223/5.56mm 16 Inch Barrel Carbine Profile 1/2-28 Thread Car Handguard A2 Flash Hide w/Gas Block Black. 223/5.56mm Completed Upper w/Gas Block. These AR15 Upper Receivers from the professional product professionals at Rock River Arms are fashioned using dependable and dependable resources as a way to provide you with a product that is going to be useful for many years. Designed utilizing some of the best accessible substances and design these particular AR15 Upper Receivers from the product professionals at Rock River Arms can last an unbelievably long time. Rock River Arms has been making superior quality merchandise for a very long time and the Rock River Arms Carbine .223/5.56mm Completed Upper w/Gas Block is their particular way of demonstrating exactly how much they care. At OpticsPlanet we ensure that it is our responsibility to get the best product for all of your requirements and exhibiting the Rock River Arms Carbine .223/5.56mm Completed Upper w/Gas Block is one thing that we are pleased to offer. Specifications for Rock River Arms Carbine .223/5.56mm Completed Upper w/Gas Block: Manufacturer: Rock River Arms Caliber: .223 Wylde 5.56mm Overall Length: 24 in Barrel Length: 16 in Barrel Profile: Carbine Gas System Length: Carbine Length Barrel Twist Rate: 1-9 Firearms Threads Per Inch: 1/2x28 Handguard Type: Free-Float Muzzle Device: A2 Flash Hider Finish: Anodized Color: Black Gas Block Journal Size-Diameter: .750 in Handguard Length: 6 in Handguard Style: Quad Rail Gun Rail: Full Top Rail Barrel Material: Chrome Moly Weight: 4.4 lb Bolt Carrier Group Included: COM-SPEC Charging Handle Included: COM-SPEC Magazine Included: No Included Accessories: None Package Contents: Rock River Arms Carbine .223/5.56mm Completed Upper w/Gas Block Bolt Carrier Group Charging Handle Assembly Rock River Arms AR0328B: Completed Upper Receiver .223/5.56mm 16 Inch Barrel Carbine Profile 1/2-28 Thread Car Handguard A2 Flash Hide w/Gas Block Black
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