Spike's Tactical M-LOK Rail .308 (Options)

Spike's Tactical

  • The Spike's Tactical .308 M-LOK Rail is a 1pc free floating quad-rail that’s machined from 6061-T6 Aluminum with a barrel nut machined from 7075-T6 Aluminum and finished in type III Hardcoat Anodizing on the rail and barrel nut. The main benefit of this M-LOK rail is to those who wish to have a suppressor inside of the rail or for those shooters who have large bear paw hands and who feel that skinnier rails are just too small.

    The .308 M-LOK rail also features scalloping on the rails that not only saves a little bit more weight but also allows you to run this rail without any rail covers! This sounds like an outlandish claim to those who have had their hands cut up on other quad-rails that have been lovingly called “cheese graters”. The M-LOK also offers excellent heat ventilation, built in anti-rotation tabs to keep the rail and even the barrel nut from coming loose, and of course; sexy styling.

    But wait, there’s more! The M-LOK has 5 built in QD sockets (sling attachment points), allows for a continuous top rail, it’s compatible with many low profile gas blocks, and it’s made right here in the USA and backed by our LIFETIME WARRANTY!

    • 1pc free float design
    • Matches DPMS High Pattern Upper Receivers
    • Rail is Machined from 6061-T6 Aluminum
    • Barrel nut is Machined from 7075-T6 Aluminum
    • Type III Hardcoat Anodized Black on the rail and barrel nut
    • Built in Anti-Rotation tabs
    • excellent heat ventilation, and sexy styling
    • Scalloped rails
    • 5 Built in QD sockets (Sling attachment points)
    • Rail attaches to the barrel nut w/ (8) T-20 Grade 8 Torx screws
    • Continuous top rail
    • Compatible with Many Low profile gas blocks


  • Manufacturer Part Number: SMRX012 (12"), SMRX012 (15"),


    • (1) .308 12” M-LOKrail
    • (3) Black M-LOK rail covers
    • (1) Barrel nut
    • (1) Heavy Duty QD Sling loop
    • (4) Barrel nut shims, (3 Thick/1 Thin) for proper barrel nut alignment every time!
    • (10) Grade 8 T-20 Torx screws (8 to attach the rail to the barrel nut and 2 spares)
    • (1) Tube of Blue Loctite
    • (1) T-20 Torx wrench
    • (1) Instruction sheet
    • Spike's Tactical Lifetime Warranty
  • The MSR Arms Advisor articles are intended to answer some of the most common shooter questions and assist our customers in making the best purchasing decision possible.
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  • No questions have been submitted regarding this product. If you have a question regarding this, or any of our other products, please submit them by emailing sales@msrarms.com. We will return your email promptly and post both the question and answer here for our other customers to view. Remember, there are no dumb questions... Thank you, MSR Arms!

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