MCR Dual Feed Complete Upper Assembly 5.56mm/.223 Remington 16.25 Inch Threaded Barrel Manganese Phosphate Finish Mil-Std 1913 Handguard
MCR drop-on upper receiver assembly with 16.25 inch quick-change, chrome-lined barrel with 1:7 inch right hand twist and 1/2-28 threads. Short-stroke gas piston operation. Dual feed: accepts all AR15/M16 magazines and M27 linked ammunition. Precision machined 7075-T6 billet upper receiver, feed cover and charging handle. Precision machined billet steel feed tray. Semi-auto bolt carrier. Optic ready. Ships with main action spring, bolt catch, carbine stock spacer, one hundred M27 links and operator’s manual. Made in the USA.