Right here is a True Mil-Spec BCG. This unit is for builders who prefer tried and true manufacturing and aggressive quality assurance testing over fancy coatings, proprietary profiles and laser engraved logos. AO Precision has provided BCGs to large military contractors such as FN America and large commercial retailers who re-brand and sell these at a considerable mark-up. You can now get these directly from Dirty Bird & Ammo and save big! Bolt Machined from Carpenter Technology No. 158 alloy. Heat treated Shot peened per ASTM B851/SAE AMS2430S

Right here is a True Mil-Spec BCG. This unit is for builders who prefer tried and true manufacturing and aggressive quality assurance testing over fancy coatings, proprietary profiles and laser engraved logos. AO Precision has provided BCGs to large military contractors such as FN America and large commercial retailers who re-brand and sell these at a considerable mark-up. You can now get these directly from Dirty Bird & Ammo and save big! Bolt Machined from Carpenter Technology No. 158 alloy. Heat treated Shot peened per ASTM B851/SAE AMS2430S

Right here is a True Mil-Spec BCG. This unit is for builders who prefer tried and true manufacturing and aggressive quality assurance testing over fancy coatings, proprietary profiles and laser engraved logos. AO Precision has provided BCGs to large military contractors such as FN America and large commercial retailers who re-brand and sell these at a considerable mark-up. You can now get these directly from Dirty Bird & Ammo and save big! Bolt Machined from Carpenter Technology No. 158 alloy. Heat treated Shot peened per ASTM B851/SAE AMS2430S