As of August 2025 the 4 M-Lok slot length version is still the original style with only a single QD socket at one end and lacks the tapered ends shown in the below photos. All other lengths are the new style with twin QD sockets and tapered ends.

Make Picatinny Great Again with our precision machined 1913 Picatinny Rails, designed to be used with the Arisaka Rail Slider (but they also work fine with any in-spec Picatinny accessory). These rails feature an anti-rotation QD socket at both ends, and are tapered to ease entry into the Arisaka Rail Slider. They are also fully compatible with in-spec Picatinny accessories made by other manufacturers beyond the Rail Slider system.

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 o'clock position on the handguard.

Length: 8 M-Lok slots 12.4", 7 slots M-Lok 10.8", 6 M-Lok slots 9.3", 5 M-Lok slots 7.7", 4 M-Lok slots 6.1", 3 M-Lok slots 4.5"

Height: 0.375"

Weight: 3-6 oz.

The rails are CNC machined from 6061-T651 aluminum and MIL-A-8625 Type III hard coat anodized. Requires a 5/32 Allen wrench for installation (not included). Recommended torque: 30 inch lbs on metal handguards, 15 inch lbs on polymer handguards.

Made in the USA.