The Faxon PRO 12.5" 5.56 NATO AR15 Pistol is built for shooters who want a premium, ready-to-run AR platform without having to piece together the right combination of parts on their own. This complete firearm brings together a carefully selected set of Faxon and premium supporting components to deliver a compact, suppressor-friendly, hard-use 12.5" 5.56 AR15 pistol with strong real-world versatility.

What separates the PRO line from a basic build is decision confidence. Instead of starting with a stripped platform and upgrading later, this configuration already includes the kind of parts experienced buyers usually end up wanting: an adjustable gas block, a superfinished 5.56 M16 bolt carrier group, a gas-blocking charging handle, an enhanced match trigger, and quality furniture throughout. For buyers who want a serious firearm from day one, the PRO line closes the gap between “good enough” and “built right.”

At the heart of the pistol is the Faxon Duty Series Gunner Profile 12.5" Mid-Length 5.56 NATO AR15 Barrel. That matters because a 12.5" mid-length gas system is a distinctive configuration: it helps reduce port pressure compared with shorter gas systems, which can support a smoother shooting experience while still keeping the gun compact. Combined with the included Faxon Patented Adjustable .625" 3 Screw Low Profile Gas Block, this setup gives buyers a stronger starting point for tuning around suppressors, preferred ammo, and recoil feel.

This is also a complete firearm built as part of a broader suppressor-ready ecosystem. The included Faxon MuzzLok® Ported 5.56 Steel Flash Hider, mid-length gas system, and gas-blocking charging handle all support a better host setup for shooters planning to run a can. Whether the goal is a compact defensive firearm, a premium range gun, or a maneuverable truck or property rifle, this configuration gives buyers a refined blend of control, durability, and upgrade-level component selection right out of the box.

Faxon Firearms is a family-owned American manufacturer, not a reseller. Faxon launched in 2012, but the Faxon family’s machining and engineering roots go back to 1978. That heritage spans aerospace, defense, and other mission-critical industries, and it informs how Faxon designs, machines, and assembles firearms in Greater Cincinnati, Ohio today.

Best for: buyers who want a premium complete AR15 pistol, compact 5.56 builds, suppressor-ready hosts, and shooters who value upgraded controls and internals from the start.
Not for: buyers looking for a stripped-down budget firearm, or those who want to source and tune every component themselves from scratch.