Picatinny rail for the following weapons: MP5, SP5, SP5K, HK94, BT96, OA5, MKE T94, HSG94, SAR M41/05 G3, HK41, XR41, MKE 41, and other clones. Bulletproof up to .308 Winchester. Weight: 55 g Length: 120 mm Width: 40 mm Material: rail made of aluminum, clamps made of steel