This Tactical V-Style See-Thru Offset Mount Combo come with tactical strobe function flashlight and weaver base red laser sight. This is ultimate red dot sight combo for your AR15, M16, or M4 with carry handle.specifiction:V-style dual Side 45 degree offset mount.Problem install your tactical gear on difficult angle? Lack of space for additional gears? With dual side 45 degree offset see-thru rail mount you can install all your tactical accessory without any problem.MATERIAL TYPE: ALUMINUM RAIL TYPE: PICATINNY WEAVER RAIL BASE: PICTIALNNY WEAVER RABBET SPACE: 5 RAIL LENGTH (inch):2.1 COLOR: BLACK NET WEIGHT (OZ): 2.1 Tactical flashlight with strobe functionLED Type: 3W with 140 lumensLED bulb factory CreeLED life time: est. 20,000 (+/- 2%)assembly factory: Chinapower: use 2 x 123 batteriesMaterial: Anodized aluminumlength: 6.4 inchWeight (without batteries): 4.6 ozWeight (with 2 x 123a batteries): 5.8 ozWeight (with 2 x 123a batteries and 1 x tactical ring): 8 ozTotal gross weight: 10.5 ozHead diameter: 1.6 inchBody diameter: 1 inchSpecial function: Strobe FunctionFree 2 x 123 batteriesFree Tactical Flashlight Ring Tactical weaver base mount laser sight (red)1 x laser sight with on/off switch 1 x Picatinny weaver mount 3 x lithum batteries 2 x allen wrench Material: Aluminum Weight: 5oz free pressure wire switch