Geissele Automatics Super Modular Rail for HK416/MR556/BRN-4, 14.5 in., DDC 05-191S

Geissele Super Modular HK416 Rail SMR HK416 for MR556 BRN-4. Precision machined 6061-T6 aluminum rail finished with Type 3 Hardcoat Anodize. Designed to replace the standard HK416 rail and to use the stock HK barrel nut. Rail sections can be mounted at the 3, 6, and 9 o'clock positions with steel inserts for a rock solid steel-to-steel connection. Available in multiple lengths with the 14.5 inch variant weighing 16.3 oz (actual rail length 13 5/8 inches) and the 10.5 inch variant weighing 12.96 oz (actual rail length 9 3/8 inches). SPECIFICATIONS: Item Length 10.500 inches, Item Width 1.900 inches, Item Height 2.510 inches, Material Aluminum, Finish Type 3 Hardcoat Anodize, Make/Model Fit HK416, Inner Diameter 1.35 inches, Outer Diameter 1.9 inches, Weight 0.810 lbs for 10.5 inch version. Availability lengths: 10.5 and 14.5. The 14.5 inch rail is optimized for a 14.5 inch barrel.