Griffin Armament LPRSR Features The Griffin Armament LPRSR rail is M-LOK compatible and built specifically to allow suppressors up to 1.5 in outside diameter to mount inside the octagonal rail body shortening the overall length of a suppressed AR-15. This internal mounting approach gives shooters a sleeker more compact rifle profile than running a suppressor externally off the muzzle. Machined from 7075 aluminum with a T-6 type 3 hard coat anodized finish the rail is built to resist wear from repeated mounting and use in demanding environments. The barrel nut installs easily to 35 to 85 ft/lbs using the included Griffin Armorers Wrench simplifying what is normally a more involved installation process. A new slip fit clamp design eliminates the need for shims or special timing methods making installation straightforward for builders and armorers alike. The clamp geometry at the rear of the rail stays low profile and ergonomically comfortable even during extended carry at static security positions. M-LOK flats on each 45-degree surface give shooters flexible mounting points for lights grips and other accessories around the full rail. A contiguous Picatinny top rail ensures repeatable accurate mounting for night vision and thermal optics. At 9.5 long and 8.6 oz the Griffin Armament LPRSR is for sale at GrabAGun for AR-15 builders who want a compact suppressor-ready rail system. Griffin Armament LPRSR Specifications Manufacturer: Griffin Armament Model: LPRSR Type: Suppressor Ready Rail Color: Black Anodized Material: Aluminum Mount Type: M-LOK Length: 9.5 Diameter: 1.54 Height: 2 Width: 1.79 Weight: 8.6 oz Compatible Hosts: AR-15 Available At: GrabAGun