MR09 reproduction flashlight adapter for H&K USP full size

This is a reproduction clone of Surefire's MR09 flashlight adapter for Heckler & Koch full size USP handguns. This will allow the use of the X300 B model thumbscrew attachment variant (X300U-B, X300V-B, X300T-B) to be adapted to the HK proprietary non 1913 accessory rail found on all USP full size pistols. The adapter is a 2pc design made from 7075 aluminum with a type 3 hardcoat anodizing in black. Hardware is stainless steel socket head cap screws with a thread pitch of 18-8 and a diameter and length of 4/40 x1/2". Recommended torque spec on the bracket is 15 in-lbs. Having a 2pc design allows the X300Ub to sit closer to the trigger guard than a GG&G 3pc 6061 adapter does, and will not sag or flex allowing use of IR laser aiming modules. The MR09 reproduction bracket will fit full size Heckler and Koch USP pistols in all calibers; it will not work on any USP compact frame however. 

Due to variances in polymer frames this bracket may require hand fitting by a certified gunsmith to work on certain HK full size frames in .45ACP calibers. To fit an X300-A model the 1913 picatinny slot bar will need to be installed, and material will need to removed from the back side of the switch where it meets the trigger guard or the light cannot seat and lock into place. A gunsmith certified in HK is recommended to hand fit certain lights and caliber options. The bracket itself can be hand-filed at the screw mating surfaces to remove a few thousandths of an inch off the flats to allow the adapter to tighten up on certain .45 ACP frames.