Bootleg Four Position Adjustable Bolt Carrier – AR-15

The Bootleg Four Position Adjustable Bolt Carrier allows you to tune your AR-15's gas system without modifying the gas block or barrel. This complete bolt carrier group features four adjustable gas positions—from fully open to completely suppressed—so you can optimize cycling whether shooting unsuppressed, with a suppressor, or with varying ammunition loads. The adjustment dial is accessible from the ejection port, enabling shooters to reduce gas blowback when running a suppressor or ensure reliable function with specific loads.

Machined from 8620 steel with a low-friction coating, this carrier includes a properly staked gas key and chrome-lined interior for long-term durability. Installation is drop-in for any mil-spec AR-15 upper receiver. The adjustment mechanism is robust and maintains zero once set, with detents that provide tactile feedback for each position. This is a complete bolt carrier group ready to install.

• Part Type: Complete Bolt Carrier Group
• Compatible Firearms: AR-15, mil-spec upper receivers
• Material: 8620 steel
• Finish: Low-friction coating, chrome-lined interior
• Installation: Drop-In
• Includes: Complete bolt carrier, bolt assembly, cam pin, firing pin, retaining pin