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MI Combat Rail One Piece Free Float Handguard, M-LOK(TM) compatible

MI-CRM4.5<br> MI Combat Rail One Piece Free Float Handguard, M-LOK(TM) compatible

Our Price: $129.95

Stock Status:(Out of Stock)

Product Code: MI-CRM4.5

  • 4140 Heat Treated Barrel Nut
  • Barrel Nut and Wrench Included
  • Features Patented 4140 Heat Treated Torque Plate
  • 4.5" overall length
  • 5.3 oz Installed Weight
  • 6061 Aluminum Type 3 Hard Coat Anodized
  • Continuous MIL-STD 1913 Picatinny Top rail
  • Two Integral Anti-Rotation QD Sling Sockets
  • Super Slim 1.5” Outside and 1.3” Inside Diameter
  • Seven Sides of M-Lok
  • 5-Slot Polymer M-Lok rail included
  • Fully Dehorned and Deburred
  • 100% Made in USA- Keeps America Working
  • MI Lifetime Warranty

Optional Titanium Barrel Nut and Titanium Clamp Screws Available for Purchase


Due to the many different dimensions in BILLET UPPER RECEIVERS on the market, please contact your billet upper receiver manufacture to insure fit of this handguard. This handguard is compatible with standard forged upper receivers.

Magpul(R) and M-LOK(TM) are trademarks of Magpul Industries Corp
Midwest Industries M-LOK Combat Rail Installation
Midwest Industries AR-15 Combat Handguards and Back Up Iron Sights

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 2 Write a review »

  0 of 0 people found the following review helpful:
5 of 5 My new "Go To" rail December 31, 2019
Reviewer: John from West Fargo , ND United States  
I think I now have 4 or 5 combat rails. Any AR build that I do that is 7.5" barrel or under uses these rails. I have done a micro 9mm, dedicated .22LR and recently a super short 4.75" .300 Blackout AR pistol.

They are easy to install (I will never use a system with a barrel nut that has to be timed anymore) just tighten the nut, slide the rail into place and install the locking piece and 2 screws. Stays put too.

I will buy more!

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  0 of 0 people found the following review helpful:
5 of 5 Great rail June 25, 2019
Reviewer: Alex Hart from SAINT PETERSBURG, FL United States  
This was exactly what I was looking for for my 5.5" 9mm upper build.  I looked quite a bit for a good handguard in this size and this was one of only a handful that I could find at all!  I really like the combat rails in general, so this was a great find.  My only complaint is that the provided wrench is not the most precisely sized, so it is a little finicky during installation.  Other than that, this is a top notch choice.

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