The Super Modular Rail 13.5" (SMR) MK16 M-LOK, NSN# 1005-01-672-4794 (13.5"), has been adopted by USASOC for the URG-I program (Upper Receiver Group Improved). The Geissele Super Modular Rail MK16 offers unmatched performance for the most demanding shooters. Mounted to your AR-15 upper using the updated version of the proven Geissele Barrel Nut design, the MK16 is not only easy to install and maintain but offers superior rigidity. Anti-rotation tabs and set screws ensure that your rail will won't rotate, even under the most extreme conditions of use. M1913 picatinny rail on top and M-LOK slots on every quadrant ensures maximum customization for all your accessories. The Geissele SMR MK16 is precision machined using 6061-T6 Aluminum due to its strong, rigid and light properties, and is finished in durable Type-3 Hardcoat anodized.

Specifications and Features:
Precision Machined 6061-T6 Aluminum
Mil-Spec Type 3 Hardcoat Anodized
Length: 13.5"
M-Lok Slots on Every Quadrant
Anti-Rotaion Tabs
2.25" Geissele Long Barrel Nut Included
Black

Fits:
AR-15 Weapon Platforms Only

NOTE
Compatibility with Billet Receiver Sets is Unknown
Geissele Barrel Nut Wrench Must Be Used For Proper Install

Note: This product is new and being closed out; sold "As Is" and is not returnable to Cheaper Than Dirt. Please contact the manufacturer for warranty and assistance.