1. For military picatinny rails for the installation of flashlight, laser and red dot scope etc 2. Length: 170mm (6.7 inch) 3. Weight (net): 320g (11.3 ounce) 4. Outside Dia 45mm, Inside Dia 40mm (if installed on caliber) 5. Lower rail style with CNC procedure 6. Can be splited two parts for easy installation 7. Light weight in precision 8. Clever Top/Bottom Two-piece Design with Integral Spinal Cords/Alignment Housing for Perfect Fit with 9. Barrel Nut and Round Front Cap 10. High-durability aluminum alloy in black matt and beautiful complement 11. Shock proof can be used on real fire caliber 12. Rubber covers NOT included.
