The Sons of Liberty Gun Works Liberty Fighting Barrel (brand part no. 115-LFB-556CL) is an 11.5-inch AR barrel machined from 41v50 chrome-moly vanadium steel, phosphate-treated outside and chrome-lined inside for hard-use durability. Sons of Liberty Gun Works cuts a .223 Wylde chamber — the match-accurate chamber that safely handles both 5.56 NATO and .223 Remington ammunition — with 5R rifling in a 1:7 twist and a DLC-coated barrel extension. Among AR barrels, the LFB targets builders who want fighting-grade durability with match-chamber accuracy.

Key Specifications

• The length is 11.5 inches.
• The chamber is .223 Wylde, safely firing both 5.56 NATO and .223 Remington.
• Machined from 41v50 chrome-moly vanadium steel.
• The bore is chrome-lined with a phosphate exterior.
• The rifling is 5R with a 1:7 twist.
• The barrel extension is DLC-coated for smooth, durable lockup.

Frequently Asked Questions

What ammo can a .223 Wylde chamber shoot? Both 5.56 NATO and .223 Remington safely, with match-grade accuracy from the tighter Wylde freebore.

Is an 11.5-inch barrel legal to buy? Yes, the barrel itself is an unregulated part. Build it on a pistol lower or an ATF-registered short-barreled rifle — installing it on a standard rifle lower would create an unregistered SBR.

Buy the SOLGW Liberty Fighting Barrel

Chrome-lined durability with a match-accurate .223 Wylde chamber is exactly what this Liberty Fighting Barrel delivers. Order it from our Lubbock, Texas gun shop for fast shipping.