Rock River Arms SOC0820V1 LAR-15M CLB 458 SOCOM 16in Barrel Beast Brake Fits AR

The Rock River Arms SOC0820V1 LAR-15M CLB Complete Upper delivers a robust 458 SOCOM platform with a 16" Chrome Moly bull barrel, finished in black, paired with a precision-aligned aluminum receiver and a 13" M-LOK handguard for versatile accessory mounting. Built to perform in demanding environments, this complete upper features a 1:16� twist rate to stabilize heavier projectiles while maintaining reliable cycling and consistent accuracy across field conditions. The Beast Brake muzzle device enhances recoil management and reduces muzzle rise, helping shooters maintain rapid follow-up shots in hunting and tactical scenarios alike. Designed to fit AR-15 rifle builds, it integrates seamlessly with standard lowers to deliver a ready-to-fire upper that supports precision adaptation, suppression-friendly setups, and optimized platform performance for 458 SOCOM enthusiasts. Whether you're loading for game over open terrain or setting up for improved terminal performance on larger targets, this Rock River Arms upper combines rugged construction, dependable finish, and practical ergonomics to maximize shootability, control, and confidence during field runs, range sessions, or coastal upland hunts.