M16 Adjustable Bolt Carrier Group - M16 Adjustible Bolt Carrier Group Black Steel

Bootleg's AR-15 Adjustable Bolt Carrier Group lets you control the amount of gas that passes through the carrier to suit the type of ammo you are shooting. It's ideal for rifles fitted with sound suppressor. Four adjustable vent settings on the Bootleg AR-15 Adjustable Bolt Carrier Group let you reduce the gas flow, causing less blow back that can affect carrier speed and shooter accuracy. Even better, the Bootleg Adjustable Carrier Group is easily fine-tuned with a flathead screwdriver - while