Q LLC ACCE9MOUNTTRILUGBLACK Erect9r Three-Way Mount Black, Fits HK 3-Lug Mount for ERECT9R 9mm Suppressor

ADAPTS ERECTOR 9 TO H&K TYPE TRI-LUG BARRELS AND MOUNTS. OVERALL SPECS:DIAMETER: 1.13 in. WEIGHT: 0.135 lbs. OVERALL LENGTH: ~1.95 in. ATTACHMENT: H&K TYPE TRI-LUG BARRELS AND MOUNTSMATERIALS(S): 17-4 STAINLESS STEEL AND 7075 ALUMINUMFINISH: AS HEAT TREATED AND HARD COAT ANODIZE, RESPECTIVELY