Geissele 13" MK4 M-Lok Super Modular Rail, Black

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Geissele 13" MK4 M-Lok Super Modular Rail, Black ‒ 05-278B

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$ 275.00

Quick Overview

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SKU: 60733
UPC: 854014005717
MFR#: 05-278B
  • Height: 2.3"
  • Length: 13"
  • Inner Diameter: 1.35"
  • Outer Diameter: 2.11"
  • Weight: 11.0 oz.
  • Installed Weight (w/ Hardware): 12.9 oz.
  • Weapon Platform: AR15/M4/M16
  • .750" Low Profile Stainless Steel Geissele Super Gas Block Included

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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 rail's 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 tailor their platform to his or her unique needs. The SMR MK4 also features Geissele's proprietary 2" 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.

Note: Geissele rails are designed to work with Mil-Spec M4 upper receivers. The compatibility with billet receiver sets is unknown.

SKU: 60733
SKU 60733
Brand Geissele
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SKU: 60733

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5.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Best rail I’ve ever owned. Far lighter than a RIS type rail. Not the lightest by any means but it’s built better than most “race” hand guards.
Awesome rail
Awesome rail
October 9, 2018
11 months ago
Outstanding Fit and Finish
The fit and finish of this rail is outstanding. I fully recommend this rail to anyone.
July 8, 2018
1 year ago

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