RUBBER CITY ARMORY - AR-15/M16 ADJUSTABLE GAS KEY AR15
The Rubber City Armory Enhanced Adjustable Replacement Gas Key enhances performance of low mass and standard mass GI systems without unnecessary disassembly. Gas flow is adjusted and maintained at the carrier with 2 set screws, one to adjust gas flow and one to lock it in place. Made from Pre-Hardened 4140: 28-32RC with radiused corners reducing sharp edges. 2 mounting bolts included.