Freedom Ordnance FX-9 P4 9mm AR-Platform Pistol – 4" Threaded/Fluted Barrel, 40-Round Glock-Pattern Mag, Black Anodized
The FX-9 P4 packs Freedom Ordnance’s straight-blowback AR-9 engineering into a compact, 4-inch platform that runs on widely available Glock magazines. A hard-coat-anodized 7075-T6 receiver set that is a full inch shorter than standard AR-15 dimensions keeps weight down while preserving familiar controls, and a proprietary last-round bolt hold-open ensures reliable lock-back with every Glock-pattern magazine. Factory upgrades—such as an ambidextrous, oversize charging handle and a fluted, black-nitride muzzle enhancer—give this pistol ready-to-run appeal right out of the box.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Specific Condition Notes: The pistol exhibits mild scuffs and general handling wear; the polymer grip shows noticeable surface damage but remains structurally sound.
Bore Condition: Excellent – clean, mirror finish with sharp lands and grooves.
What’s Included
- Freedom Ordnance FX-9 P4 9mm pistol
- 1× 40-round Glock-pattern magazine with KRISS MAG-EX² 9mm extension
- GAZESHOT rail-mounted weapon light (installed)
Built around a 4-inch, 4150 CMV steel barrel that is threaded 1/2-28 TPI and fluted under a black-nitride finish, the FX-9 P4 is suppressor-ready and optimized for heat management in rapid strings of fire.
The straight-blowback action is tuned for 9mm Luger pressure, delivering consistent cycling and simplified maintenance. Freedom Ordnance’s proprietary last-round bolt hold-open improves reliability over many AR-9 designs by ensuring positive lock-back with every Glock magazine.
A free-float aluminum M-LOK handguard provides ample real estate for accessories while keeping the barrel completely isolated from external pressure. The factory ambidextrous latch charging handle and anti-walk pins add durability and user-friendliness.
The modular barrel-and-rail system allows user-level conversions to 8- or 16-inch assemblies without gunsmithing, making the P4 a flexible base for future configurations. A pistol stabilizing brace with a hook-and-loop strap aids control without adding NFA complexity.
Entirely designed and manufactured in the United States, the FX-9 P4 ships with a 40-round extended magazine and an installed weapon light, giving buyers a ready-to-deploy defensive or range package at an MSRP of $899.99.