This flattop A3 upper receiver comes complete with charging handle, bolt carrier assembly, A2 front sight with sling swivel, bayonet lug, and threaded muzzle with flash hider. The 16" button rifled barrel is chambered for 40 S&W and has a 1 in 16" rate of twist. Ready for installation onto any standard AR-15 lower receiver. Includes one 18 round modified magazine. Lifetime factory warranty.
16" Button Rifled 416 Stainless Steel Barrel
Bolt Carrier Assembly
A3 Flattop Upper Receiver
18-Round Polymer Magazine Notes:
Blowback operated using Olympic Arms patented configuration
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