The Super Modular Rail (SMR) MK4 M-LOK is Geissele’s ultra-lightweight M-LOK option. These rails are purpose-built and feature integrated M1913 picatinny rail sections at the fore of the rail in the 3, 6 and 9 o’clock positions.
Maximum venting for heat dissipation also dramatically reduces the rails overall weight, while maintaining its same strong and rigid platform. Utilizing Magpul's M-LOK technology at the 3, 6, and 9 o'clock positions, as well as the upper 45 quadrants. The SMR MK4 is both versatile and modular, allowing the user to taylor their platform to his or her unique needs.
The SMR MK4 also features Geissele's proprietary 2.25" long barrel nut. This increases the surface contact where the rail interfaces with the receiver and creates a platform that can be trusted to be straight and true the entire length of the free float rail. This increases accuracy and zero repeatability during disassembly and reassembly when performing maintenance. Bundled with a low-profile Geissele Super Gas Block, a $59 value, the SMR MK4 is not only feature packed, but it is also value packed.
- Geissele Super Gas Block (a $59 value)
- Geissele proprietary barrel nut (which does not require timing with the gas tube)
- Geissele barrel nut wrench
- Material: Aircraft Grade 6061-T6 Aluminum
- Finish: Military Specification Type III Hard Coat Anodized
- Length: 13"
- Weight 11 oz
- Installed weight 12.9 oz
- Inside Diameter: 1.350"
- Overall Height: 2.30"
- Outside Diameter/Distance Across Quadrants: 2.11"
- Contiguous Top Rail
- Integrated QD Sockets
For complete and current information on this item please see the manufacturer's website.
Returns disallowed on this item. Sale items are not eligible for return for any reason even if they do not work properly with your weapon. This policy supersedes our 30 day money back guarantee.
California residents: this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information visit https://www.p65warnings.ca.gov.