Cryptic Coatings Mystic Bronze BCG (.223 / 5.56 / .300 AAC Blackout)

Coated bolt carrier group (full auto version) for AR15, M16, or M4 machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin and Mil-Spec chrome lined interior. BCG includes the proper chrome lined and heat treated gas key. Gas key is...

Cryptic Coatings Mystic Black BCG (.223 / 5.56 / .300 AAC Blackout)

Coated bolt carrier group (full auto version) for AR15, M16, or M4 machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin and Mil-Spec chrome lined interior. BCG includes the proper chrome lined and heat treated gas key. Gas key is...

Cryptic Coatings Mystic Gold BCG (.223 / 5.56 / .300 AAC Blackout)

Coated bolt carrier group (full auto version) for AR15, M16, or M4 machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin and Mil-Spec chrome lined interior. BCG includes the proper chrome lined and heat treated gas key. Gas key is...

Cryptic Coatings Mystic Midnight BCG (.223 / 5.56 / .300 AAC Blackout)

Coated bolt carrier group (full auto version) for AR15, M16, or M4 machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin and Mil-Spec chrome lined interior. BCG includes the proper chrome lined and heat treated gas key. Gas key is...

Cryptic Coatings Dragons Breath

Forward Controls Designs SBCG NP3 (Secure staking, slick side BCG)

It is our view that the factory M16 carriers are very good, and improvements over them would be hard to come by.  Modern coatings have made them easy to clean and quite slick, which we can appreciate. We're not into sacrificing reliability for the...

Cryptic Coatings Black Nitride BCG (.223 / 5.56 / .300 AAC Blackout)

Coated bolt carrier group (full auto version) for AR15, M16, or M4 machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin. BCG includes heat treated gas key. Gas key is secured to carrier with Grade 8 fasteners and properly staked...

Cryptic Coatings Mystic Silver BCG (.223 / 5.56 / .300 AAC Blackout)

Coated bolt carrier group (full auto version) for AR15, M16, or M4 machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin. BCG includes heat treated gas key. Gas key is secured to carrier with Grade 8 fasteners and properly staked...

Cryptic Coatings Nickel Boron BCG (.223 / 5.56 / .300 AAC Blackout)

Coated bolt carrier group (full auto version) for AR15, M16, or M4 machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin. BCG includes heat treated gas key. Gas key is secured to carrier with Grade 8 fasteners and properly staked...

CRYPTIC COATINGS PHOSPHATE BCG