The Bootleg Four-Position Adjustable Complete Bolt Carrier Group (brand part no. BP-C15-D) is machined from S7 tool steel and finished with a Lithium Isonite coating for durability and corrosion resistance. Its standout feature is a 4-setting adjustable gas vent system that relieves excess gas pressure created by suppressor use, giving the carrier a longer dwell time and reducing blowback felt by the shooter. The gas adjustment can be turned while the carrier is still installed in the rifle, so there’s no need to strip the upper down just to dial in a new suppressor or ammunition.

Key Specifications

• Machined from S7 tool steel.
• Finished with a Lithium Isonite coating.
• 4-setting adjustable vent system relieves excess gas pressure from suppressor use.
• Adjustment creates longer dwell time and less blowback to the shooter.
• Gas setting can be adjusted while installed in the rifle.
• Sold as a complete bolt carrier group.

Frequently Asked Questions

Do I need to remove the BCG to adjust the gas setting? No, the gas adjustment can be turned while the carrier is still installed in the rifle.

Why does this matter for suppressed shooting? The 4-setting adjustable vent relieves the extra gas pressure suppressors create, giving longer dwell time and less blowback to the shooter’s face.

Buy the Bootleg Four-Position Adjustable Complete Bolt Carrier Group

Shop more AR bolt carrier groups from Bootleg and order it from our Lubbock, Texas gun shop as soon as it’s available to ship.