Sig Sauer M400 TREAD M-LOK Free Float Handguard 15in Black Aluminum

by Sig Sauer

Report an issue with this product's data
Sig Sauer M400 TREAD M-LOK Free Float Handguard 15in Black Aluminum

User Ratings

No ratings yet

Be the first to review this product

Retail: $149.99

The Sig Sauer M-LOK Free Float Handguard is a factory replacement for the Sig Sauer M400 TREAD rifle, designed for a secure fit and modern accessory mounting. This 15 inch aluminum handguard features M-LOK slots and lightening cuts to help keep the front end streamlined while maintaining rigidity. Designed as a two-screw replacement for TREAD rifles, it is an excellent option for restoring your rifle to factory configuration or upgrading to a longer free float handguard.

  • Factory replacement handguard designed specifically for the Sig Sauer M400 TREAD
  • 15 inch free float M-LOK profile helps maximize usable rail space for accessories
  • Lightening cuts help reduce bulk while maintaining a sleek, modern look
  • Two-screw replacement design for compatible TREAD rifles
  • Durable aluminum construction with black finish
  • Length: 15 in
  • Compatibility: Sig Sauer M400 TREAD rifle

Specifications

Manufacturer:
Sig Sauer
Category:
handguard-rails
Platforms:
AR-15
Interfaces:
Magpul M-LOK
Length:
15.0"
UPC:
8238488780922
MPN:
HGRDTRDE15MLOKBLK
Required Component:
Yes

Parts Cabinet

Track parts you own or plan to buy.

Where to Buy

Palmetto State Armory
In Stock
$136.99
TLO Outdoors
In Stock
$151.98

Have one to sell?

Sell on Marketplace View listing rules

Sponsored

MantisX

The smart way to train your AR build

Built your rifle — now train it. BlackBeardX installs in minutes and turns your AR into a full dry fire system with smart feedback on every pull.

Shop BlackBeardX

Price History

Current

$136.99

Lowest

$136.99

Highest

$151.98

Tap data points for details

Price Alert

Sign in to save a target price and receive an email when this component drops.

Sign In to Set Alert

Builds Using This Part

No builds yet — be the first to use this part.

Related Guides

Guide

AK Furniture and Ergonomics: Stocks, Handguards, and Practical Setup

How AK stock and handguard choices affect control, heat management, optic height, and practical shooting ergonomics.

5 min read

Guide

AK Optics Mounting Guide: Side Rail vs Dust Cover vs Handguard

Compare the main AK optics mounting approaches and choose the right setup for durability, repeatable zero, and practical shooting performance.

8 min read

Guide

The AK Platform: Core Design, Strengths, and Builder Tradeoffs

A practical AK overview covering operating system basics, parts ecosystem realities, and where the AK platform shines compared to AR-pattern rifles.

8 min read

Submit a Review

Reviews

Loading reviews…