NEW: Midwest Industries 17.5″ MLOK Handguard

Midwest Industries has designed and built a 17.5″ hand guard around their MB4 muzzle break. Using a cutout section where the break’s blast is driected, the MI rail extends out to nearly the end of the muzzle device for a clean look. The rail also provides nn extra two inches of sight radius, should you decide to use iron sights.

Other than the unique aesthetics, I am having difficulty finding an advantage to burying a muzzle break inside a rail. Even though the risk is small, the fact remains that an overly aggressive c-clamp support hand grip could put fingers in the path of the break’s redirected blast. However, MI isn’t new to the AR accessory game, so I’m guessing both engineers and beta testers weighed both the risks and rewards when inserting a muzzle device under a rail.

Still, purchasing a hand stop might be cheap finger insurance.

Midwest Industries

MI 17.5″ Handguard

MI 17.5″ Handguard

MI 17.5″ Handguard

  • Professional grade, one piece free float design and construction
  • Simple installation
  • Super lightweight
  • 17.5″ model weighs only 12.4oz with barrel nut
  • Super slim 1.5 inch outside diameter
  • Seven sides of Magpul® M-LOK™ slots
  • One five slot Magpul® M-LOK™ Polymer Rail Section included
  • Proprietary barrel nut and barrel nut wrench included
  • Patented Torque Plate System US Patent Number 9,453,694
  • Five anti-rotation QD sling swivel sockets
  • High quality MIL-STD 1913 top rail
  • Rugged construction from 6061 aluminum, hard coat anodized for a lifetime of service
  • Fully dehorned for a non-abrasive, comfortable feel
  • 100% Made in America – Keeps America Working
  • MI Lifetime Warranty

This handguard is made for the MI-MB4 muzzle brake. Use of a brake with out side ports may damage the handguard and void your warranty. 



Midwest Industries 17.5″ M-Lok Rail – $229.95

Midwest Industries on Facebook


LE – Science – OSINT.
On a mission to make all of my guns as quiet as possible.
Twitter: @gunboxready
Instagram: @tfb_pete


  • Squirreltakular

    I don’t get it, but I’m sure people with really long arms or those who prioritize aesthetics will like it.

    It does look cool as hell, even if it’s just a Warsport LVOA ripoff.

    • Nicholas C

      More practical than the LVOA handguard. Go look at the LVOA or SAI Tier 1. The rail is similar but is already obsolete. It doesnt have MLOK or KEY MOD holes. It uses proprietary side rails.

  • Thomas S

    The only use I can think of for this is long range shooting. It ensures that you will not have anything touching the barrel and also will let you get the bipod a bit further forward.

    If I were putting together such a rifle though I would probably go with an 18 inch barrel and not need this whole side cutout business.

    Folks will find a use for them, even if that is only for the look.

  • Rick O’Shay

    17.5″ rail, and you’re worried someone might have an aggressive C clamp grip? Yeah, maybe if they’re 7′ tall and have the wingspan to boot.

    • Pete – TFB Writer

      If you run NCH, it’s a possibility.

      • Laserbait


        • Pete – TFB Writer

          Sorry. Nose to Charging Handle.

          • Nicholas C

            I run NCH and even I cant touch the muzzle unless I really try. And this is on my Salient Arms with the 16″ rail.

            Squaring up to the gun will push the muzzle further away from you. But if you blade, then yes you could reach the muzzle.

          • Pete – TFB Writer

            Maybe my arms are just freakishly long.

      • RSG

        Maybe with my foot, lol. I’m 5’7″. I think average is 5’8″. You’d have to be 6’3″ or taller, with symmetrically long arms to reach the end there, I’m figuring.

  • Joseph Goins

    When James Yeager approves it, you know it’s good!

  • Laserbait

    I think that looks great!

  • Black Dots

    I have a feeling that we’re going to look back on full-length rails like this and wonder what the hell we were all thinking.

    • JumpIf NotZero

      Like quad rails. And piston retrofit kits. And drop leg holsters. And buying guns without buying training. And BAD Levers. And 14oz red dots with magnifiers. And KNS pins. And 6.8SPC. And KSGs. And 5lb ARs. And…

      • felix

        Crye gear, training how you fight (Yeager refrnce), 50beowolf

      • Nicholas C

        KNS Pins do have a purpose. I have had hammer pins walk on factory guns. KNS pins would have stopped that.

    • Nimrod

      Needs more mudflaps, tail fins and curb feelers

  • End of the West

    Not going to spend money on a rail that needs to be glued on to your rifle to remain secure.

  • Gus Butts

    I like Midwist Industries’ approach to rails. Make every kind of rail, for every kind of rifle, in every length.

  • noob

    so a duck bill rail system, just in case duck bill flash hiders weren’t already enough of a snag hazard.

    I mean at least a flashlight is a snag hazard with a purpose.

    • If it looks cool, it has already fulfilled the primary purpose of 75% of anything that was ever attached to an AR.

      I wanna see it with one of those %$&#-off huge Barrett anti-materiel muzzle devices.

  • Steve Kovarik

    No thanks, I’d rather not have the chance of my hand sitting right next to my muzzle break. I’ll stick with a 12″ or 15″ rail on a 16″ barrel with a J-Comp. This looks great, functionality… not so much. A lot like the Warsport that they ripped off.

    • Nicholas C

      You must have some seriously long monkey arms if you hand reaches out that far. Also handstops are handy.

      • I also can’t help but notice the conveniently-placed QD mount, and anyone in danger of ape-arming this with a C-clamp grip probably already has a drawer full of QD sling swivels at home.

  • Nicholas C

    Interesting. I like it.

  • I’ve tried, but I am incapable of looking at a rifle with this mounted on it without making pew-pew-pew laser sounds under my breath.

  • Quest

    Weight, weight, weight.

    And if your unlucky you grip it too far out and let you fngers get hit by an extrem hot high pressure gas shockwave.