Dirty Bird 20" M16A1 Enhanced 5.56 Retro Rifle Kit Review

About Dirty Bird 20" M16A1 Enhanced 5.56 Retro Rifle Kit

This Dirty Bird 20″ M16A1 Enhanced 5.56 Retro Rifle Kit is everything you need to outfit your lower receiver, so that you can have a complete rifle. Dirty Bird 20″ M16A1 Enhanced 5.56 Retro Complete Upper 20″ 5.56 Lightweight Contour 1:9 Rifle Length Barrel w/ FSB Chambered in 5.56 1:9 Twist Rate Button Rifled A2 Front Sight Base w/ Front Sight Post Installed M16A1 Assembled Upper Receiver 7075-T6 Forged Aluminum Factory Installed Teardop Forward Assist & Dust Cover Factory Installed Dual Aperture Rear Sight Integrated M4 Feed Ramps Fully Compatible with any Mil-Spec Lower Receiver A1 Triangle Handguard A1 3 Prong Compensator NBS Enhanced Mil-Spec Charging Handle Dirty Bird Industries Enhanced Bolt Carrier Group .223/5.56 Strategically relocated load bearing surfaces reduce carrier tilt/can’t during recoil, thus increasing reliability and longevity. Additional wall thickness in the gas exhaust port area for added strength and rigidity. The 9310 Bolt is machined to mil-spec dimensions and then the external surfaces including the lugs are CNC ground after the heat treating process to ensure a very precise fit. The bolts themselves feature the same Black Nitride finish as the carrier and are High Pressure (HP) Tested and Magnetic Partical Inspected (MPI) in accordance with Mil-STD-1816 specifications. KAK AR-15 A2 Buttstock Kit – Black Polymer A2 Stock w/ Storage Compartment A2 Extension Tube A2 Receiver Extension / Buffer Tube Chrome Silicon A2 Rifle Buffer Spring A2 Spacer Assembly Screw OEM Mil-Spec AR-15 Lower Parts Kit

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