13.5″ Super Modular Rail MK16 M-LOK® 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 not 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 7000 Series Aluminum due to its strong, rigid and light properties, and is finished in durable Type-3 Hardcoat anodized. 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). SPECIFICATIONS HEIGHT: 2.39″ COLOR: Black, DDC, Gray, ODG MATERIAL: 7000 Series Aluminum FINISH: Type 3 Hardcoat Anodize AVAILABLE LENGTHS: 9.3″, 10.5″, 13.5″, 15″ INNER DIAMETER: 1.26″ OUTER DIAMETER (DAQ*): 1.59″ SMR MK16 9.3″ WEIGHT: 10.1oz (11.74oz w/ barrel nut) SMR MK16 10.5″ WEIGHT: 11oz (12.6oz w/ barrel nut) SMR MK16 13.5″ WEIGHT: 13.4oz (14.9oz w/ barrel nut) SMR MK16 15″ WEIGHT: 14.2oz (15.8oz w/ barrel nut) *DAQ – Distance Across Quadrants
