Bootleg Four Pos Adj Bolt Car Compl

The Bootleg Four Position Adjustable Bolt Carrier Group Complete is a purpose-built AR-platform bolt carrier machined from S7 tool steel with a Lithium Isonite coating for superior corrosion resistance and durability. The signature feature is the four-position adjustable vent system, engineered to relieve excess gas pressure generated by suppressor use—a critical advantage for shooters running sound suppressors who need to manage increased blowback and extend bolt dwell time without sacrificing reliability.

This carrier uses all MIL-SPEC standard components, features a staked MIL-SPEC gas key, and is rated for full-auto fire, making it a trusted choice for professional end users and serious enthusiasts. The adjustable vent system can be tuned while the rifle remains fully assembled and charged—no disassembly required—allowing operators to dial in the optimal gas setting for their specific ammunition, suppressor configuration, and barrel length. This adaptability translates to reduced shooter fatigue, faster target reacquisition, and reliable operation across a wider range of ammunition types and suppressor setups.

Ideal for rifle builders, law enforcement, military personnel, and civilian operators running suppressed AR platforms, this complete bolt carrier group eliminates the guesswork of standard fixed carriers in suppressed applications. Whether you're optimizing a patrol rifle, training carbine, or precision platform, the Bootleg Four Position Adjustable Bolt Carrier Group delivers the performance and flexibility that professional shooters demand when running suppressed fire.

Complete bolt carrier groups are drop-in components that integrate with standard AR receivers and fire control groups, making installation straightforward for experienced builders. The S7 tool steel construction and professional-grade coating ensure long service life even in harsh environments.