The Faxon Sport 556 in 5.56 NATO (brand part no. FXSPT556105SA9) is a semi-automatic, pistol-length AR build around a 10.5-inch Duty Series SOCOM-profile barrel with a 1-in-8-inch twist and a carbine-length gas system, giving shooters fast handling in a compact, maneuverable package. Faxon Firearms wraps the barrel in a 9-inch Streamline M-LOK handguard with a top rail for lights and optics, and builds the upper from forged aluminum paired with 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 compact 5.56 pistol built on genuine Faxon components.

Key Specifications

• Chambered in .223 Rem/5.56 NATO with a 1-in-8-inch twist rate.
• Built around a 10.5-inch Duty Series SOCOM-profile barrel.
• Runs a carbine-length gas system.
• Feeds from a magazine with a 30+1 capacity.
• Wears a 9-inch Faxon Streamline M-LOK handguard with a top rail.
• 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 pistol-length AR build.

Frequently Asked Questions

Is this a rifle or a pistol? It is built as a pistol-length AR, with a 10.5-inch barrel and no shoulder stock.

What ammunition does it use? .223 Remington or 5.56 NATO.

What handguard does it use? A 9-inch Faxon Streamline M-LOK handguard with a top rail for lights and optics.

Buy the Faxon Sport 556 AR Pistol

A compact, fast-handling 5.56 pistol 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.