The Faxon Sport 556 in 5.56 NATO (brand part no. FXSPT55616SA13) is a semi-automatic AR-platform rifle built around a 16-inch Duty Series SOCOM-profile barrel with a 1-in-8-inch twist and a mid-length gas system, giving shooters a dependable 5.56 platform built on genuine Faxon components. Faxon Firearms builds the upper from forged aluminum, adds a tensioning screw to the lower for a tighter receiver fit, and runs a Faxon Superfinished, nitride-coated bolt carrier group for smooth cycling. Among AR-platform rifles in the AR rifles category, the Sport 556 favors shooters who want a proven 5.56 AR from a barrel maker trusted throughout the industry.

Key Specifications

• Chambered in .223 Rem/5.56 NATO with a 1-in-8-inch twist rate.
• Built around a 16-inch Duty Series SOCOM-profile barrel.
• Runs a mid-length gas system.
• Muzzle is threaded 1/2×28 for a muzzle device.
• Feeds from a magazine with a 30+1 capacity.
• Upper receiver is forged aluminum.
• Lower receiver includes a tensioning screw for a tighter receiver fit.
• Runs a Faxon Superfinished, nitride-coated bolt carrier group.
• Uses a mil-spec selector safety.
• Operates as a semi-automatic AR-platform rifle.

Frequently Asked Questions

What caliber does this rifle fire? .223 Remington or 5.56 NATO.

What is the magazine capacity? 30+1 rounds.

What gas system does it run? A mid-length system paired with the 16-inch SOCOM-profile barrel.

Buy the Faxon Sport 556 5.56 Rifle

A dependable 5.56 AR built on genuine Faxon components is exactly what the Sport 556 delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.