Forend & Handguard PartsB5 SystemsSold by Brownells

B5 Systems

M-Lok Rail Covers - M-Lok Rail Cover Gray

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Low-profile M-lok

Rail cover designed for most

Soft, No-slip

Ribbing provides a sure grip

Press-in Fit

For straightforward installation

Each Cover

Fills 3 M-LOK sections

Made From

Heat- and chemical-resistant material

$17.10
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SKU: 430104479

Overview

This low-profile rail cover is built for shooters who want a cleaner, more controlled feel on machined rails and polymer handguards. Its soft, no-slip surface and ribbing are designed to add traction while helping manage heat, and the press-in fit keeps installation straightforward. Each piece covers three M-LOK sections, and the pack includes four covers for configuring multiple areas of the handguard. Offered in gray, it provides a simple, functional way to improve grip without adding much bulk.

Why Hunters Choose the B5 Systems

Low-profile Design

Fits most machined rails and

Soft, No-slip

Ribbing adds sure grip and

Press-in Fit

Simplifies installation on compatible M-LOK

Each Cover

Fills three M-LOK sections for

Heat- Chemical-resistant

Material suits demanding use

Key Features

  • Low-profile M-LOK rail cover designed for most machined rails and polymer handguards.
  • Soft, no-slip material with ribbing provides a sure grip and added traction.
  • Press-in fit for straightforward installation.
  • Each cover fills 3 M-LOK sections.
  • Made from heat- and chemical-resistant material.
  • Sold in packs of 4 in gray; weight is 0.15 oz.

Best Used For

  • Hunters wanting a low-profile rail cover for most machined rails and polymer handguards
  • Users who prefer added grip and ribbing for a sure, no-slip hand placement
  • Setups needing a press-in fit rail cover that fills three M-LOK sections
  • Those looking for extra traction and heat resistance on a lightweight accessory
  • Shooters wanting a four-pack of standard-color rail covers for matched handguard coverage

Specifications

Attachment TypePress-In Fit
Chemical ResistanceYes
ColorGray
CoverageEach Rail Cover fills 3 M-LOKA(R) sections
FitMost machined rails and polymer handguards
Grip FeatureSoft no slip material and ribbing
Heat ResistanceYes
Length4.6 in.
MaterialHeat and chemical resistant material
Pack Quantity4
Weight0.15 oz.
Width0.62 in.

Pros

  • Low-profile design fits most machined rails and polymer handguards.
  • Soft, no-slip material with ribbing adds sure grip and extra traction.
  • Press-in fit simplifies installation on compatible M-LOK sections.
  • Each cover fills three M-LOK sections for broader rail coverage.
  • Heat- and chemical-resistant material suits demanding use.
  • Sold in packs of four for multiple rail sections.

Considerations & Trade-offs

  • Designed for M-LOK-compatible setups, so it won’t suit rails or handguards without those sections.
  • Each cover fills 3 M-LOK sections, which may limit placement flexibility on shorter or crowded handguards.
  • Press-in fit keeps the profile low, but installation and removal are less adjustable than a wraparound style.
  • Sold in packs of 4, so covering a larger setup may require multiple packs.

Suggested Comparisons

  • M-LOK rail covers
  • Handguard accessories
  • Rifle grip enhancement accessories
  • Heat-resistant firearm accessory covers

Suggested Accessories

  • M-LOK handguard accessories
  • Rail section covers
  • Rifle grip accessories
  • Heat-resistant shooting accessories

Frequently Asked Questions

What rails or handguards is this cover designed to fit?

It is described as a low-profile M-LOK rail cover designed to fit most machined rails and polymer handguards.

How is the rail cover attached?

The product uses a press-in fit.

How much rail does each cover protect or cover?

Each rail cover fills 3 M-LOK sections.

What comes in the package?

It is sold in packs of 4.

What are the listed size and weight specifications?

The listed specifications are 4.6 in. length, 0.62 in. width, and 0.15 oz. weight.