The Luth-AR 14.5-inch M4 SOCOM barrel assembly (brand part number BA-F14-7C) starts with a chrome-lined 4150 CMV barrel and F-marked front sight base, mated to an A3 flattop receiver.

Key Specifications

• 14.5-inch M4 SOCOM profile barrel.
• 1:7 rate of twist.
• Chambered in 5.56mm, made from 4150 CMV steel, chrome lined.
• Includes an F-marked front sight base and 2-piece handguard.
• Mated to an A3 flattop receiver with chrome-lined bolt carrier.
• Includes a 7075 charging handle, forward assist, and ejection port cover.

Frequently Asked Questions

Is a 14.5-inch barrel assembly legal to buy without paperwork?
Yes — this is sold as a bare complete upper with no lower receiver included, so it’s just a parts purchase. Federal rules on minimum 16-inch rifle barrel length only apply once a barrel is mated to a complete, shoulder-stocked rifle receiver; building this into a stocked rifle configuration under 16 inches without a prior ATF Form 1 would make it a regulated short-barreled rifle.

What’s included with this upper assembly?
The 14.5-inch chrome-lined barrel, F-marked FSB, 2-piece handguard, A3 flattop receiver, chrome-lined bolt carrier, 7075 charging handle, forward assist, and ejection port cover.

Buy the Luth-AR 14.5-inch SOCOM Barrel Assembly

Get a nearly complete upper built around a durable chrome-lined SOCOM barrel. Order from a Lubbock, TX gun shop, part of our Luth-AR lineup in our AR15 uppers selection.