The Geissele Automatics Super Modular Rail (SMR) MK8 is an incredible durable AR-15 free float hand guard with some unique features. You will notice a full length m1913 picatinny rail runs the entirety of the top of the hand guard. Further increasing the modularity of this rail is the use of M-LOK slots in the 3, 6, and 9 O' Clock positions as well as located on the upper 45 quadrants. The rail is made from 6061-T6 aluminum with a hard coat anodized finish. The proprietary barrel nut can only be installed with a Geissele barrel nut wrench which is sold separately.
- Geissele Automatics 05-1657B
- Super Modular Rails MK4 M-LOK
- 10.5" Free Float Hand Guard
- Full Length Top Picatinny 1913 Rail
- M-LOK Sections at 3,6 and 9 O' Clock and Upper 45 Quadrants
- Proprietary Barrel Nut (Requires Separate Purchase of Barrel Nut Wrench 02-243F)
- Height 2.4"
- Inner Diameter 1.35"
- Outer Diameter 2.11"
- Overall Weight 9.9oz (12 with Barrel Nut)
- 6061-T6 Aluminum
- Type 3 Hard Coat Anodized
- Black
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