Handguard
The Sons of Liberty Gun Works M89 M-LOK Handguard, 15″, features the innovative, patent-pending Drivelock design developed in collaboration with Icon Defense. This design uses three independent wedges that engage with angular grooves in a proprietary barrel nut, providing an exceptionally secure and precise attachment. The system clamps the rail onto the steel barrel nut with extreme force while driving the handguard rearward towards the upper receiver. The slightly larger internal diameter of the extrusion offers more space around the gas block, increased rigidity compared to the M76, and better heat dissipation.
- 18.1 ounces installed with the barrel nut and QD sling mount
- Engraved T-Marks
- Includes Barrel Nut, Barrel Wrench, Lock-Up Components
- M-LOK
- Full-length picatinny rail
- 15” total length
Stripped Upper Receiver
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 minimizes wobble between receivers which can affect accuracy. These stripped AR-15 upper receivers are forged from 7075-T6 aluminum, known for its high strength and crack resistant properties while also being lighter than 6061. After the forging process is complete, these receivers go through a final machining process to eliminate flash marks and true up the tolerances to be better than Mil-Spec. Features their Flag Logo engraved on the tang.
- 7075-T6 Aluminum
- Engraved T Marks
- Engraved Flag Logo
Barrel
The Criterion Hybrid Contour Barrel, 16″, Mid-Length Gas System, .223 Wylde, is a mid-weight barrel designed to strike the perfect balance between weight and barrel material distribution. It provides excellent heat absorption and maintains consistent harmonics. Lightweight enough for comfortable all-day field use, this barrel also delivers exceptional performance under extreme conditions and high rates of fire.
- 1:8 Twist
- Hybrid Contour
- Chrome-lined, phosphate
- .223 Wylde chamber
- Honed and hand-lapped rifling
- Mid length gas system
- 1/2×28
- 2.05 lbs.
- 4150 CrMoV
- 6 Groove
- 0.750” Gas Block, dimpled for ease of installation and solid lock-up
- Polished chambers for reliable extraction and feeding
- Gas hole tuned to function properly with and without suppressor
- Precision-machined barrel extension with M4 feed ramps
Muzzle Device
The Sons of Liberty Gun Works NOX9 XENO muzzle device is a versatile and effective muzzle device that can be used as a standalone or paired with a suppressor with a Xeno adapter. It features a 9-port neutral timing design that reduces recoil and muzzle rise. The NOX9 XENO has a bronze heat-treated finish for corrosion resistance and durability, is compatible with 1/2×28 threaded barrels, and is lightweight and compact, measuring 2.18” x 1” and weighing 3.1 oz.
- Use by itself or pair with a suppressor using a Xeno adapter
- Bronze heat-treated finish
- 1/x2x28 thread pitch
- 9 port neutral timing
- 2.18” x 1”
- 3.1 oz
Forward Assist
The Forward Controls Design LSFA (Low Snag Forward Assist) enhances the traditional forward assist by improving its practicality, efficiency, and overall performance. Featuring a smooth top and bottom to reduce snagging, the LSFA also includes an increased plunger surface area for a more solid press, with its pad extending inward. Machined from 4130 steel bar stock and heat-treated with a black nitride finish, the LSFA offers increased corrosion resistance, ensuring durability and longevity.
- Smooth top and bottom to prevent snagging
- Increased plunger surface area
- Machined from 4130 steel bar stock
- Heat-treated, black nitride finish
- Made in Texas, USA
Gas Block
Long term durability and quality tolerances make this gas block from Forward Controls Design an easy choice for your next build. Machined from high strength 4140 chrome moly steel with a military tough manganese phosphate coating, the GBF (Gas Block Forward Controls) is built with a series of surprising features you won’t find in most other gas blocks on the market. For high-volume shooters, the front of the gas block features a 3/32 hole, allowing a punch to easily drift out a gas tube that has been stubbornly seized in place with carbon build up. If you choose to pin the gas block to the barrel, the GBF features bosses on both sides that allow perfect positioning.
- Constructed of high strength 4140 chrome moly steel
- Tough manganese phosphate finish
- Dual bosses as guides for pinning to the barrel
- 3/32 hole for dislodging stuck gas tubes
- Fits .750″ barrels
Ejection Port Cover
Magpul’s Enhanced Ejection Port Cover is designed to provide an improved installation process, physical strength, and corrosion resistance over the standard USGI ejection port cover. Traditional stamped steel ejection ports are malleable, prone to corrosion, and require tools to install. The Enhanced Ejection Port Cover snaps into place easily without having to remove your handguard or barrel nuts, wind any loose springs, or adjust small e-clips. Constructed of impact-resistant injection molded polymer, it is corrosion-resistant and will not bend or deform from impacts.
- Durable, injection-molded polymer construction
- Installs easily in seconds
- Corrosion-resistant components
- Will not bend or deform from impacts
- Direct replacement for USGI ejection port cover
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