Rock River Arms A4 SS 16" Classic Upper .450 Bushmaster 1:24 M-LOK Mid-Length with BCG and CH, Black - 450B0461

Rock River Arms is known for delivering reliable, high-performance firearms trusted by military, law enforcement, hunters, and shooting enthusiasts alike. This complete .450 Bushmaster upper is built for versatility and stopping power. It features a 16" stainless steel barrel with a muzzle brake to reduce recoil and improve accuracy during rapid follow-up shots.A lightweight aluminum free-float M-LOK handguard allows for easy accessory attachment, while the included bolt carrier group, charging handle, and magazine make this upper ready to drop onto any standard AR-15 lower. Rugged, accurate, and adaptable, this setup is ideal for those looking to harness the full potential of the .450 Bushmaster.