MODERN WEAPON SYSTEMS - Sig Sauer MPX 4.5" Handguard - Straight cut

$139.99 $124.99
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MODERN WEAPON SYSTEMS - Sig Sauer MPX 4.5" Handguard - Straight cut - angled right view

Sig Sauer MPX 4.5" Handguard - straight cut front end to give your MPX a short "K" length aggressive look.  Our handguard is made from 6061 aluminum extrusions and hard anodized to match your upper, features M-lok rail systems and works with 4.5" barrel or greater without muzzle device (Note: anodize is black - will not match early purple colored anodize uppers Sig made for a short time) *Requires swapping over of your factory handguard holding pin and screw. 1.708" inside diameter for silencers up to 1.699"


Please note- DISCLAIMER: “MPX” is a federally registered trademark of SIG SAUER, Inc. Neither Modern Weapon Systems (MWS) nor this website are affiliated in any manner with, or otherwise endorsed by, SIG SAUER, Inc. The use of “MPX” on this page is merely to advertise the sale of MPX aftermarket parts, or accessories, manufactured by Modern Weapon Systems. 

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  • 5
    Sig Handguard

    Posted by Edward Mcbride on Jun 27th 2018

    The Handguard is very well designed . The Customer Service was extremely professional, efficient and pleasant, Communications was excellent , Update and Tracking # provided and quick delivery. Therefore 5 Stars.

  • 5
    Fits Like Factory Part

    Posted by Chris J on Jun 3rd 2018

    Perfect fit and finish. Just like a factory part. Also this one is more attractive than the Midwest Industries M-Lok for the MPX K. Highly satisfied, and highly recommended.

  • 5
    mpk-k gun done!

    Posted by ted on Jan 15th 2018

    This handguard is the best looking Mpx hg I have found, finally completed my MPX k-series gun with a 3.5" barrel and it looks sick as hell.

  • 5
    sig sauer mpx 4.5" handguard

    Posted by Steve on Oct 15th 2017

    Excellent fit and finish

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