The UTAC (by ) Off-Set Weapon Mount by is a heavy duty 1" light mount designed for the M20 & M30 series flashlights, Fenix TK11, TK12, TA21 flashlights. Constructed of aluminum with a black anodized finish for long lasting performance. Designed to be compatible with all weaver/picatinny style rails. Features large knurled knob for secure "no-tool" rail mounting. Includes flashlight mounting wrench. This mount will fit many of todays most popular tactical flashlights including: Olight M20 Warrior, Olight M30 Triton, Fenix TK10/11/12 TA21, Surefire 6P, G2 and many other 1" diameter lights.