KAC Knights Armament Company SR-15 E3 Mod 2 Carbine M-Lok 14.5" KM31946

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KAC Knights Armament Company SR-15 E3 Mlok Mod 2 Carbine 

KAC Part #: KM31946


Rifle Specs

Manufacture: Knights Armament Company

Caliber: 5.56mm


Upper Receiver

Barrel: 14.5 inch chrome lined, 1:7 twist, chrome lined, hammer forged

Rail: URX4 Mlok  - The URX4 Mlok rail system features a stronger and more stable designs over previous rail systems due to its one piece construction. The KAC URX4 features an integrated barrel nut.

Gas system: The gas system on the Mod 2 is a proprietary mid length gas system that increased durability and reliability while reducing felt recoil.

Bolt Carrier Group: The bolt carrier group features the revolutionary E3 bolt design. The E3 design increases the durability and life of the bolt by utilizing features such as rounded lugs, size reduction of the cam pin, larger bolt face, and a proprietary extractor design.

Sights: Micro rear 600m flip up sight and Micro front flip up sight.

Muzzle Device: Quick Detach Coupler (QDC) Suppressor ready three prong flash hider (Length 2.17")

Charging handle: Knights Armament enhanced charging handle


Lower Receiver


Trigger: Knight Armament 2 stage match trigger. The first stage is a "no-poundage" stage, requiring almost zero force to move the trigger. The second stage requires 4.5lbs of force in order for the trigger to break.

Ambidextrous Controls: The highly sought after Knight Armament lower receiver features an ambidextrous bolt catch, safety, and magazine release. Perfect for left handed shooters and provides all shooting a more ergonomic experience.


For more information please visit www.knightarmco.com

To view more of the Knight’s Armament Company products N.S. Defense offers please visit our Knight’s Armament Company Section!


*Must ship to FFL

*This is an SBR and will require Form 3 Dealer-Dealer Transfer 

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  • 5

    Posted by McKenna on Aug 16th 2019

    Top Notch Quality! The guys over here at NS Defense are excellent to work! The SR-15 14.5” is the perfect host weapon to pin and weld a QDC MAMS.