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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 dings on surface straight out of packaging by First time buyer, Verified Owner, June 22, 2021
Opened up the package and there is paint missing in three places ! Disappointed to say the least and now I have to return it!! I don’t know if I would recommend this product or not just depends if the replacement I get has the same issue.
2/7 found this helpful
Most Recent Reviews Midwest industries handguard by Pete, Verified Owner, May 17, 2025
I've purchased a decent amount of items from midwest and am never disappointed.
Most Recent Reviews Midwest handguard by Deepark, Verified Owner, April 27, 2025
Pricey but nice! Wasn't looking for a shooter handguard, there were many that would work. But those one stands out.
Most Recent Reviews 5 order I've made by Jason Atwood, Verified Owner, March 25, 2025
This was the 5th ordered I've made with Optics Planets parts always come on time. Will order more
Most Recent Reviews quality control is horrible by TJWheeler, Verified Owner, July 3, 2020
I ordered the 4.5 handguard months ago and finally received it today. the product I received would be considered a blem from any reputable manufacture. The handguard had tooling marks all over and several scratches and dings including a damaged qd sl...
Read More...
5/11 found this helpful
Read All 18 Reviews
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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
Fabric/Material: 6061 Aluminum
Gun Type: Rifle
Gun Rail: Picatinny
Weight: 5.3 oz
Condition: New
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

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
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
DEMO, Midwest Industries 6in Combat Rail M-Lok Handguard, Black, MI-CRM6 , MPN: MI-CRM6-DEMO , Code: MWI-HZ-CMRH-MI-CRM6-DEMO
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