Product DescriptionThe Faxon Firearms Gen 2 9mm PCC Full-Mass Blowback Bolt Carrier Group is purpose-built for 9mm AR-15 pistol caliber carbines, delivering broad lower-receiver compatibility and durability-focused upgrades. It retains dual GLOCK and COLT geometry, full-auto compatibility, and a user-removable carrier weight for tuning with select buffer systems. Gen 2 improvements include a ramped bottom for compatibility with many common triggers, an upgraded AR-15 style pivoted and sprung extractor, and easier disassembly via a standard firing pin cotter pin. For long service life, the carrier key is separated from the charging surface to help prevent damage from aggressive manipulation. A salt bath nitride finish helps enhance wear resistance and ease of cleaning.Product Highlights Gen 2 full-mass 9mm blowback bolt carrier group designed for AR-15 pistol caliber carbine builds Dual-geometry compatibility for GLOCK and COLT style 9mm lower receivers Ramped underside supports use with many common trigger designs-ideal for competition and range use Salt bath nitride finish for durability, corrosion resistance, and easier maintenance User-removable carrier weight for tuning with JP Enterprises and similar buffer systemsSpecs Brand: Faxon Firearms Product Type: 9mm PCC Blowback Bolt Carrier Group (Full-Mass), Generation 2 Compatibility: GLOCK & COLT style lower receivers; compatible with MP5 magazine lower receivers Carrier Material: MIL-SPEC 8620 steel Heat Treatment: Fully heat treated Extractor: External M16-style; upgraded AR-15 pivoted and sprung design Full-Auto Compatibility: M16 (full-auto) compatible Finish: Salt bath nitride Dust Cover Compatibility: Yes Carrier Weight: Removable; compatible with JP Enterprises and similar buffer systems Weight: 14.9 oz UPC: 816341022805 Manufacturer Part Number: FF9MMBCGCNITRIDEDisclaimer: 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.