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Questions & Answers
Does the 4.5” rail have a full size M-LOK slot at the 6 o’clock(bottom) of rail? Expert Answer

The Midwest Industries Combat Rail M-Lok Handguard features a full top picatinny rail, Two Integral Anti-Rotation QD Sling Sockets, and Seven Sides of M-Lok. The bottom of the rail will have (1) full size M-LOK slot and (1) half sized M-LOK slot.

by Ethan, Gear Expert, September 28, 2022
What is the true length of the 6” hand guard? Expert Answer

The manufacturer states that the overall length of the 6" handguard is 6". They do not state any other dimensions for the Midwest Industries Combat Rail M-Lok Handguard.

by Hunter, Gear Expert, June 23, 2022
Customer Reviews
Helpful Positive Review
Perfect Fit by Sully, Verified Owner, February 3, 2024
Sleek and slim. Perfect for your PCC build. Still long enough for a C-clamp style hold and room for attachments.
1/1 found this helpful
Helpful Negative Review
Decent product, poor packaging by sirsloth, Verified Owner, July 19, 2020
So Midwest Industries seems to be going with some sort of vacuum sealed packaging with no other protection for their handguards. That means your item is left rattling around in the factory box without any filler. My rail came scuffed up. I almost ...
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5/7 found this helpful
Most Recent Reviews
Can't beat it by aolive, Verified Owner, May 16, 2026
This is a great deal. Came with everything its suppose to and fit my 7.5 300 blk perfect.
Most Recent Reviews
Great little rail for those shorter builds by CT, Verified Owner, April 16, 2026
The Midwest Industries 6 inch Combat Rail is an excellent little handguard (especially for the money when paired with one of OP's frequent discounts). I was looking for a quality 6" rail for a 7.5 300 blk build and this was the best option I could fi...
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Most Recent Reviews
Installed easily and works well by SeenIt, Verified Owner, April 7, 2026
I removed an older style handguard that was much heavier, and didn't use mlok, and was able to get this one mounted in under 30 minutes. Looks great, measurements are true and it seems straight and true from my using a level and laser to check it out...
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Most Recent Reviews
Little Handguard by Joe Joe, Verified Owner, March 30, 2026
Needed to replace handguard to fit suppressor on 300blk out saw this midwest Indust 6inch for a great price and jumped on it. Great fast shipping from OP and price was even better through OP then on Midwest web site.
Read All 23 Reviews
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made-in-usa-flag Made in USA

Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for Midwest Industries Combat Rail M-Lok Handguard

The 4.5 inch Super Slim X M-Lok forend from Midwest Industries features a 4140 heat treated barrel nut and a 4140 heat treated torque plate that ensures the handguard can be installed and removed without incident. Unlike other forends the 4.5in X is a full seven sides of M-Lok giving you the space you need to mount multiple accessories and devices. The patented anti-rotation QD swivel sockets built into the handguard prevent any movement or wobble over time. The handguard also features a continuous 1913 picatinny rail on top that allows multiple devices to be mounted without end caps and without gaps on either side of the handguard. The handguard is a mere 5.3 ounces installed. For a slim and versatile handguard that gives you all the space you need the Combat Rail X M-Lok Handguard from Midwest Industries is the choice.image

WARNING: California`s Proposition 65

Specifications for Midwest Industries Combat Rail M-Lok Handguard:

Manufacturer: Midwest Industries
Color: Black
Finish: Anodized
Gun Type: Rifle
Gun Rail: Picatinny
Weight: 5.3 oz
Included Accessories: Barrel Nut, Wrench
Mount Type: M-LOK
Country of Origin: USA
Quantity: 1

Features of Midwest Industries Combat Rail M-Lok Handguard

  • 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

Package Contents:

  • Midwest Industries Combat Rail M-Lok Handguard

Midwest Industries Combat Rail M-Lok Handguard Orderable Models

List of Orderable Models

  • DEMO, Midwest Industries 6in Combat Rail M-Lok Handguard, Black, MI-CRM6 , MPN: MI-CRM6-DEMO , Code: MWI-HZ-CMRH-MI-CRM6-DEMO
  • Midwest Industries 4.5in Combat Rail M-Lok Handguard, Black, MI-CRM4.5 , MPN: MI-CRM4.5 , UPC: 812102032359 , Code: MWI-HZ-CMRH-MI-CRM4-5
  • DEMO, Midwest Industries 4.5in Combat Rail M-Lok Handguard, Black, MI-CRM4.5 , MPN: MI-CRM4.5-DEMO , Code: MWI-HZ-CMRH-MI-CRM4-5-DEMO-OB-A
  • Midwest Industries 6in Combat Rail M-Lok Handguard, Black, MI-CRM6 , MPN: MI-CRM6 , UPC: 812102032557 , Code: MWI-HZ-CMRH-MI-CRM6

Midwest Industries Combat Rail M-Lok Handguard Unavailable & Discontinued Models

List of Unorderable Models

  • USED Midwest Industries 4.5in Combat Rail M-Lok Handguard, Black, MI-CRM4.5, EDEMO8, Condition Fair, Other , MPN: MI-CRM4.5-EDEMO8 , Code: MWI-HZ-CMRH-MI-CRM4-5-EDEMO-OT-D
  • USED, Midwest Industries 4.5in Combat Rail M-Lok Handguard, Black, MI-CRM4.5 , MPN: MI-CRM4.5-EDEMO , Code: MWI-HZ-CMRH-MI-CRM4-5-EDEMO-RE-C
  • USED, Midwest Industries 6in Combat Rail M-Lok Handguard, Black, MI-CRM6 , MPN: MI-CRM6-EDEMO , Code: MWI-HZ-CMRH-MI-CRM6-EDEMO-OB-C
  • USED, Midwest Industries 6in Combat Rail M-Lok Handguard, Black, MI-CRM6 , MPN: MI-CRM6-EDEMO , Code: MWI-HZ-CMRH-MI-CRM6-EDEMO-RE-C
  • USED, Midwest Industries 4.5in Combat Rail M-Lok Handguard, Black, MI-CRM4.5 , MPN: MI-CRM4.5-EDEMO , Code: MWI-HZ-CMRH-MI-CRM4-5-EDEMO-RE-B
  • USED, Midwest Industries 6in Combat Rail M-Lok Handguard, Black, MI-CRM6 , MPN: MI-CRM6-EDEMO , Code: MWI-HZ-CMRH-MI-CRM6-EDEMO-RE-B
  • USED, Midwest Industries 6in Combat Rail M-Lok Handguard, Black, MI-CRM6 , MPN: MI-CRM6-EDEMO , Code: MWI-HZ-CMRH-MI-CRM6-EDEMO-RE-A
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