I have to many pistol uppers 20rds thru it ran fine. FTF 300.00 Riverside 9517335501. NO BCG. https://www.hardenedarms.com/images/...pmIMG_5205.jpg Thanks
Upper Assembly:
•Hardened Arms M4 Feed Ramp Flat Top Receiver
•Black anodized mil-spec finished upper receiver
•Feed ramps for increased feeding reliability on barrel and upper
•Laser etched T-Marked upper receiver
•Stainless Steel 5.56 High End Barrel
•1/7 Barrel Twist
•Chambered in 5.56 NATO (will also fire .223 ammo)
•7.5" barrel with M4 Extension
•.750" diameter at gas block
•1/2x28 threaded muzzle/barrel
•Low profile gas block
•Barrel dimpled to secure gas block
•Pistol length gas system
•A2 flash hider
Upper Assembly:
•Hardened Arms M4 Feed Ramp Flat Top Receiver
•Black anodized mil-spec finished upper receiver
•Feed ramps for increased feeding reliability on barrel and upper
•Laser etched T-Marked upper receiver
•Stainless Steel 5.56 High End Barrel
•1/7 Barrel Twist
•Chambered in 5.56 NATO (will also fire .223 ammo)
•7.5" barrel with M4 Extension
•.750" diameter at gas block
•1/2x28 threaded muzzle/barrel
•Low profile gas block
•Barrel dimpled to secure gas block
•Pistol length gas system
•A2 flash hider
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