VDI direct impingement full auto rated bolt carriers are compatible with mil-spec and non mil-sped upper receivers and associated components. This bolt carrier is machined to meet all MIL TDP specifications and is enhanced using LifeCoat treatment providing superior:

• Durability
• Lubricity
• Corrosive Resistance
• Carbon Resistance

The complete Bolt Carrier Group comes with:

• VDI LifeCoat Bolt Carrier
• VDI 5.56 Bolt Assembly
• VDI Firing Pin
• VDI Cam Pin
• Cotter Pin

Adams Arms Integral D.I. Carrier was designed from conception to improve the service life and durability of the direct impingement carrier. The VDI Integral DI Carrier eliminates the potential for carrier to key separation due to carrier key screws stripping, fracturing, or becoming un-staked. This Integral carrier has a improved gas flow path with no obstructions or shelves for carbon to deposit and build on eliminating the potential for gas obstruction to seize the operation of your carrier.