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Questions & Answers
Does this come with a barrel nut wrench? Expert Answer

Yes, the barrel nut wrench is included.

by Ethan C., Gear Expert, March 11, 2020
does this include the gas block if so what size and the barrel nut wrench Expert Answer

This comes with the barrel nut wrench and the gas block. The gas block fits a standard .750" gas block journal.

by Ethan C., Gear Expert, March 11, 2020
Customer Reviews
Helpful Positive Review Geissele smr mk8 by Usnavydoc, Verified Owner, December 7, 2016
Great rail. Sturdy easy install compared to various others i have used. Barrell nutis great with no indexing needed. Holds a zero well with a dbal. Bought this for one project now im buying another to transform a traditional ar.
1/1 found this helpful
Most Recent Reviews Best products and the best customer service by AJ, April 27, 2018
The mk8 rail is awesome, strong, and with a name like Geissele you can't go wrong. With a free gas block and optics planets amazing prices , it made it an excellent choice for any new build that your looking at doing. I'll be ordering another . Yes t...
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Most Recent Reviews Great Rail by Gerry, March 1, 2017
I put this on a 300 Blackout that has an adjustable gas block. I was very concerned about clearance, to the point of requesting a cross section drawing from Geissele (which they provided). Based on the drawing it looked tight but there appeared to ...
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Read All 3 Reviews

Product Discontinued by Manufacturer

Geissele 7in M-LOK Super Modular Rail MK8 has been discontinued by Geissele and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the AR15 Accessories, Gun Parts, AR 15 Tactical Rails, AR 15 Parts, Rifle Parts, AR Handguards & Forends, AR15 Upper Parts yourself to try and find the perfect replacement for you!

Product Info for Geissele 7in M-LOK Super Modular Rail MK8

The Super Modular Rail (SMR) MK8 M-LOK is Geissele's ultra-modular model. The SMR MK8 is one of the first rails available to utilize the Magpul M-LOK technology. These rails are designed to give the user full modularity while maintaining a strong and rigid platform. Maximum venting at the lower 45 degree; quadrants create maximum heat dissipation and also dramatically reduces the rail's overall weight. Utilizing Magpul's M-LOK technology at the 3, 6, and 9 o'clock positions, as well as the upper 45 degree quadrants. The SMR MK8 is both versatile and modular, allowing the user to tailor their platform to his or her unique needs. The SMR MK8 also features Geissele's proprietary 2-inch 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.image

Package Contents:

  • Geissele 7in M-LOK Super Modular Rail MK8

AR Handguard/Forend Screws

1–25 / 25
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Related Products to Geissele 7in M-LOK Super Modular Rail MK8

Geissele 7in M-LOK Super Modular Rail MK8 Unavailable & Discontinued Models

List of Unorderable Models

Open Box, Dealer Demo, Geissele 7in Super Modular Rail MK8,M-LOK, Black 05-363B , MPN: 05-363B-DMO , Code: 1TO-HZ-7MK8-05-363B-DMO
Geissele Super Modular Rail, 7in, MK8, M-LOK, Black, 05-363B , MPN: 05-363B , UPC: 854014005755 , Code: 1TO-HZ-7MK8-05-363B
Geissele Super Modular Rail, 7in, MK8, M-LOK, DDC, 05-363S , MPN: 05-363S , UPC: 854014005762 , Code: 1TO-HZ-7MK8-05-363S
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