Rock River Arms AR-15 A4 Complete Upper .458 SOCOM 16in Bull Barrel 15in M-LOK Rail
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Rock River Arms AR-15 A4 Complete Upper in .458 SOCOM. This AR-15 upper features a 16-inch chrome moly bull barrel with a 1:14 twist, a low-profile gas block, and a 15-inch RRA lightweight free-float handguard with M-LOK compatibility. Includes a complete bolt carrier group and charging handle assembly, plus an Operator muzzle brake threaded 5/8-32 to help manage recoil.
Specifications
- Manufacturer:
- Rock River Arms
- Category:
- upper-receiver
- Caliber:
- .458 SOCOM
- Platforms:
- AR-15
- Interfaces:
- AR-15 barrel nut patternMagpul M-LOKMIL-STD-1913
- Length:
- 16.0"
- UPC:
- 8229087412346
- MPN:
- SOC0564
- Required Component:
- Yes
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