adding other non-free shipping items to cart, leave comment during checkout
and we will ship entire order for free.
.750" Low Profile Stainless Steel Geissele Super Gas Block Included
Weight: 9.3 oz.
Super Modular Rail MK4
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.
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.