The Radical Firearms 16-Inch SOCOM 5.56 NATO AR-15 Rifle (brand part no. FR16-5.56SOC-15RPR) pairs a SOCOM-profile 16-inch barrel with a 15-inch M-LOK RPR free-float rail, giving shooters a reliable mid-length gas system and plenty of real estate for lights, optics, and grips. Radical Firearms builds this rifle around forged mil-spec upper and lower receivers with an M4 feed ramp and forward assist, a low-profile micro gas block, and a mil-spec A2 flash hider, then rounds it out with a B5 Systems Bravo stock and grip for a comfortable, adjustable fit. The 1:7 twist stabilizes the full range of 5.56 NATO bullet weights, and a 30-round magazine ships standard. Among our AR rifles, this SOCOM-profile build suits shooters who want a dependable, full-featured 16-inch AR-15 at an accessible price.

Key Specifications

• The chambering is 5.56 NATO.
• The barrel is 16 inches long in a SOCOM profile, finished in black Melonite.
• The rate of twist is 1:7 inches.
• The muzzle is threaded 1/2×28 and fitted with a mil-spec A2 flash hider.
• The handguard is a 15-inch M-LOK RPR free-float rail with a top Picatinny section.
• The receivers are forged, with an M4 feed ramp and forward assist.
• The magazine capacity is 30 rounds, and it ships with a detachable magazine.
• The stock and grip are B5 Systems Bravo components.
• The action is semi-automatic, direct impingement.

Frequently Asked Questions

What twist rate does the barrel use? A 1:7 twist, which stabilizes the full range of 5.56 NATO bullet weights.

Does the rifle include sights? No, the top Picatinny rail is included but sights are not, so you can mount your optic of choice.

What stock does it use? A B5 Systems Bravo stock, paired with a matching B5 Bravo grip.

Buy the Radical Firearms 16-Inch SOCOM 5.56 NATO AR-15 Rifle

A full-featured 16-inch AR-15 with a genuine SOCOM-profile barrel and a spacious M-LOK rail, this Radical Firearms build gives you real functionality without a premium price tag. Order it from our Lubbock, Texas gun shop for shipping to your FFL.