Make Picatinny Great Again with Arisakas precision machined 1913 Picatinny Rails, designed specifically to be used with the Arisaka Rail Slider. These rails feature an anti-rotation QD socket at one end, and include standard and short screws to help alleviate any clearance issues around gas blocks or thicker barrel contours. Please note: The lengths are based on how many full M-Lok slots the rails cover. For example, the current Knights Armament SR25 CC would use the 8 M-Lok slot rail to cover the entire 6 oclock position on the handguard.Features :3 M-Lok SlotsRecommended Torque: 30 Inch Lbs On Metal Handguards, 15 Inch Lbs On Polymer HandguardsCNC Machined From 6061-T651 AluminumMil-A-8625 Type III Hard Coat AnodizedMade In The USA