Product DescriptionThe Bootleg Four Position Adjustable Bolt Carrier Group is a complete AR-15 bolt carrier group engineered to help tune gas for suppressed shooting. Machined from durable S7 tool steel and finished with a Lithium Isonite coating, it features a 4-setting adjustable vent system designed to relieve excess gas pressure, increase dwell time, and reduce blowback to the shooter. The gas adjustment can be changed while the carrier is installed in the rifle, and the unit is built to work with standard MIL-SPEC components.Product Highlights 4-position adjustable gas vent system helps manage excess gas from suppressor use Machined from S7 tool steel for strength and long service life Lithium Isonite coated for enhanced wear and corrosion resistance Staked MIL-SPEC gas key and compatible with standard MIL-SPEC components Full-auto rated design for demanding useSpecs Brand: Bootleg Manufacturer Part Number: BP-C15-D UPC: 866907000396 Platform Fit: AR-15 Type: Complete Bolt Carrier Group (BCG) Material: S7 Tool Steel Finish/Coating: Lithium Isonite Gas System: 4-setting adjustable vent system; adjustable while installed Gas Key: Staked, MIL-SPEC Rating: Full Auto Rated Color: BlackDisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.