Description
The Rock River Arms .450 Bushmaster Complete Mid A4 Upper features a 16″ chrome moly barrel with a 1/24 twist, ensuring precision performance. This upper includes a lightweight 13″ M-Lok compatible free float rail for enhanced versatility. Also included is the RRA Operator Brake (5/8-32 thread) for reduced recoil. This complete upper comes with a bolt carrier group, charging handle assembly, and a 5-round magazine, making it ideal for tactical or hunting applications.
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