Sons Of Liberty Gun Works L89 13.7 Upper With Huxwrx XL

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The new SOLGW L89 13.7 Upper Receiver with Huxwrxs XL Quick Detach Muzzle Device for use with Huxwrx Saftey Co’s suppressors!

What You Get in this upper!


The Sons of Liberty Gun Works stripped upper receivers are made to the tightest tolerances while still being compatible with Mil-Spec parts and upper receivers. This ensures that there is absolutely no wobble between receivers which can affect accuracy. These stripped AR-15 upper receivers are a great starting point for your next build. They are forged from 7075-T6 aluminum, which is known for its high strength and crack-resistant properties while also being lighter than 6061. After the forging process is complete, the receivers go through a final machining process to eliminate flash marks and true up the tolerances to be better than MIL-SPEC. Finally, each AR upper is coated in a black hard-coat anodized type III with an R5 bright dip to further increase corrosion and wear resistance. Get your build started today with the SOLGW stripped upper receiver.

Forged from 7075-T6 aluminum
Machine finished to improve tolerances
Type III hardcoat anodized finish with R5 bright dip
Compatible with Mil-Spec parts and receivers

Sons of Liberty Gunworks 13.75 L89 Drive Lock Rail with Titanium Nut

The SOLGW L89 handguard takes what makes the M89 handguard a best-in-class product, and elevates it even further.

Featuring a Titanium barrel nut, 7-sided M-LOK attachment slots, two integrated steel QD (limited rotation) sockets, and maximized cooling slots beneath the 12 o’clock rail, the L89 is built for end-users who require every little bit of mounting space they can get.

Built on the M89/Drivelock lockup system, the L89 incorporates valued end-user feedback in getting the most utility possible out of a handguard in modern combative applications.

Maximum strength, maximum mounting space, and weight savings material choices make this one of the finest fighting handguards available to date.

Finish: Mil-Spec MIL-A-8625F, Type III, Class 2, Hard Anodized Coating, Non-Reflective, NiAc Seal (Anodized to match SOLGW receivers)

T-Marks: Engraved T-Marks

SOLGW 13.7 Combat V2 Barrel

The SOLGW V2 profile was designed with our customers’ needs in mind, delivering increased accuracy while balancing suppressed handling and performance.

With the significantly increased chamber support, our barrels are better suited for modern configurations where lights, lasers and suppressors all add to a commonly muzzle heavy carbine.

The transfer of material to the rear of the barrel helps to offset the weight of accessories, and stiffens the barrel at the same time – reducing POI shifts between suppressed and unsuppressed use.  The gas journal length has been shortened as well to optimized weight distribution, so please note that fixed front sight bases will not fit on this barrel, only low profile gas blocks.

Our V2 barrels remain appropriately gassed for use with or without a suppressor of your choosing.


Material: 4150CMV

Twist: 1:7

Chamber:5.56mm NATO

Gas Journal: .750” with a deep dimple for secure gas block installation

Finish: QPQ



Additional information

Weight 28 oz
Dimensions 36 × 4 × 4 in


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