ATI American Tactical MilSport AR-9 9mm Carbine, 16 inch Barrel, Blowback, Free-Float KeyMod, Threaded Barrel, 25+1, Made in USA
This American Tactical MilSport 9mm Carbine is a blowback-operated AR-9 with a 16 inch barrel, a free-float aluminum KeyMod handguard, and a flat-top receiver with brass deflector and ejection-port cover. It features a threaded barrel with a round ported muzzle device, an adjustable polymer stock, and a textured finger-groove pistol grip. Made in the USA, it includes one 25-round ETS polymer magazine and ships without sights installed.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: The exterior shows scuffs and wear from prior use and handling. The carbine also exhibits at-home customization.
What’s Included
- 1x 25-round ETS polymer magazine
- Velcro wrap cheek pad installed on the carbine stock
This MilSport AR-9 pairs a 16 inch threaded barrel with a round ported muzzle device and a free-float aluminum KeyMod handguard. The handguard’s top rail aligns with the receiver’s Picatinny rail to provide a continuous mounting surface across the top.
The flat-top AR-15–pattern upper includes a brass deflector and ejection-port cover. No sights are installed, and the receiver carries factory rollmarks including "MilSport MULTI CAL" and "American Tactical • Summerville, SC • MADE IN USA."
The carbine uses a simple blowback, semi-automatic action in 9mm Luger and feeds from a detachable ETS polymer stick magazine. Stated capacity is 25+1.
Furniture includes an adjustable, collapsible polymer stock with a 13.5 inch length of pull and a Velcro wrap cheek pad, plus a textured finger-groove pistol grip. Controls include a manual safety with SAFE/SEMI selector markings. The aluminum receiver and USA manufacture round out a durable, straightforward AR-9 configuration.