The Rock River Arms AR-15 A4 Upper Receiver Assembly is designed to pin onto any mil-spec lower receiver. Just add an optic, or set of sights, and you are ready to send lead downrange! Features Flattop upper receiver Mil-spec compatible Anodized finish
Rock River Arms AR-15 A4 Upper Receiver Assembly 223 Remington (Wylde) 20" Stainless Barrel Railed Gas Block Black
Rock River Arms
MSRP:
$924.00
$739.20
(You save
$184.80
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Rock River Arms
Rock River Arms AR-15 A4 Upper Receiver Assembly 223 Remington (Wylde) 20" Stainless Barrel Railed Gas Block Black
- SKU:
- 157969
- UPC:
- 842834100125
- Barrel Description:
- Heavy
- Barrel Finish:
- Stainless Steel
- Barrel Length:
- 20
- Barrel Length Range:
- 20 to 20.99
- Barrel Material:
- Steel
- caliber:
- 223 Wylde
- Firearm Fit:
- AR-15
- Firearm Type:
- AR Platform
- Handguard Finish:
- Black
- Handguards:
- 12.50 M-Lok
- Muzzle:
- A2 Flash Hider
- Receiver Finish:
- Black
- Series:
- NM A4
- Similar Items:
- UPPER
- Thread Pattern:
- 1/2-28 tpi
- Twist:
- 1:8
- Type:
- Complete
- FireArm:
- No
- Twist:
- 18
- Handguards:
- 12.50 MLok
- Firearm Fit:
- AR15
- Thread Pattern:
- 1228 tpi
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Rock River Arms
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Rock River Arms
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