Superlative Arms Llc AR-15 DIRECT IMPINGEMENT BOLT CARRIER LH BLACK SABC-15-DI-LFD-DLC

SUPERLATIVE ARMS LLC AR-15 DIRECT IMPINGEMENT BOLT CARRIER LEFT HAND   The Superlative Arms direct impingement bolt carrier is made from 8620 steel featuring a chrome lined bore (as per mil spec) with enhanced machining and a superior Diamond-like Coating; offering greater lubricity, less friction, and easier cleaning. To top off the carrier, we mounted a DLC gas key using OCKS (Optimized Carrier Key Screws) by Ned Christiansen resulting in the best possible staking and screw retention.   Superlative Arms manufactures all carriers in-house to meet or exceed mil-spec.   The Superlative Arms bolt carrier is compatible with all AR-15 bolts and this kit gives the end-user the freedom to choose their own bolt to match their preferred cartridge.   FEATURES: Direct Impingement: DI Bolt Carrier Carrier Type: Full-Auto, AR-15 Bolt Carrier Material: 8620 Steel Bolt Carrier Finish: Chrome-lined, Dark DLC (Diamond-like Coating) Carrier Key Material: 4130 Steel Carrier Key Finish: Chrome-lined, Dark DLC (Diamond-like Coating) Weight: 9.3 oz. TOOLCRAFT BOLT ASSEMBLY: Bolt: Carpenter 158 Steel, DLC Finish Extractor: 4140 Steel Mil-Spec O-Ring Mil-Spec Gas Rings (3) Cam Pin: 4140 Steel, DLC Finish Firing Pin: Hard Chrome/Ground 8740 MPI Tested, Shot Peened