Nordic 22RB 16" Dedicated Upper 22LR, 16" Barrel with 1:16 Twist, Accepts Black Dog AR-15 22LR Mags, S&W M&P-15 22 Mags will work with JP Spacer

Nordic Components' 22RB dedicated 22 upper receiver converts your standard AR-pattern lower to a dedicated .22LR for recreational shooting, training, and hunting. The 22RB is manufactured using the same materials as most standard AR15 rifles, ensuring that it is a dedicated .22 upper that looks and feels like a centerfire rifle. SUPPRESSOR READY! The 22RB's match-grade barrel also comes prepared to accept a suppressor — the barrel threads are cut to the proper spec for most popular .22 suppressors, and a mortise to accommodate the O-rings found on certain suppressor models is machined behind the threads. Read a Gear Report Here. Features: 1-16 twist match barrel NC Thread Protector Aluminum slim diameter hand guard Aluminum upper Stainless steel barrel and bolt M-LOK Compatible Hand Guard 10 round Black Dog magazine Black Dog Machine Bolt Saver for retaining bolt carrier group when upper is separate from lower Approximate Weight: 3 lbs., 12 oz. *Will accept all Black Dog AR-15 .22 magazines Note: Recommended for use with fire control groups using hammers with mil-spec dimensions only.