Description
Dirty Bird Industries Enhanced Bolt Carrier Group .223/5.56The Dirty Bird Enhanced Bolt Carrier Group for .223/5.56 features a unique carrier design withpractical improvementsin twokey areas: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 groundafterthe heat treating process to ensure a very precise fit. The bolts themselvesfeatureaBlack Nitride finish andare High Pressure (HP) Tested and Magnetic Partical Inspected (MPI) in accordance with Mil-STD-1816 specifications.
