Sons of Liberty Gun Works 5.56mm NATO 13.7" Combat Grade Barrel
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Sons of Liberty Gun Works
Overview
The Sons of Liberty Gun Works 5.56mm NATO 13.7" Combat Grade Barrel is designed for precision and reliability, featuring a mid-length gas system that enhances cycling efficiency and reduces recoil. With a 1:7 twist rate, it stabilizes a variety of bullet weights, making it versatile for different ammunition types. This barrel is commonly found in builds that prioritize a mid-length gas system and utilize the 5.56 NATO caliber, providing a solid foundation for any combat-oriented AR-15 setup.
Specifications
Sons of Liberty Gun Works 5.56mm NATO 13.7" Combat Grade Barrel
Build history on GunPartPicker
Builders on GunPartPicker first added the Sons of Liberty Gun Works 5.56mm NATO 13.7" Combat Grade Barrel to a build in May 2026.
It was out of stock everywhere we track for all of September 2026, and today none of the 2 retailers we track has it in stock right now. Listed prices start at $265.05 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
Blem PSA AR-15 Complete Upper Receiver
Geissele Automatics AR-15/M16 Super Charging Handle, Black
LMT Piston Full Auto 5.56 AR-15 Bolt Carrier Group
Knight's Armament Non-Ambi Sr-15 Stripped AR-15 Lower Receiver
Strike Industries Optimus Modular Weight Buffer
Strike Industries Carbine Length Pistol Buffer Tube - Blue
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