Christensen Arms CA9MM 9mm Luger 16" Rifle, AR-9 Platform, Glock-Mag Interface, Carbon–Aluminum Free-Float Handguard, Threaded 1/2x28, MFT Collapsible Stock
This Christensen Arms CA9MM stands out as a 16" 9mm AR-9 rifle built on a forged 7075-T6 receiver set with a hard-anodized finish. It uses a straight-blowback system and a Glock-pattern magazine interface, and it features a lightweight carbon–aluminum hybrid free-float handguard with a full-length Picatinny top rail and integrated QD sockets. The slick-side upper includes an ejection-port cover and T-marked rail, and the barrel is threaded 1/2x28 with a factory three-prong flash hider. Part of Christensen Arms’ Modern Sporting lineup introduced circa 2020–2021, this USA-made rifle includes an MFT collapsible stock and textured polymer AR-type pistol grip for a clean, purpose-built configuration.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: The bore is clean and bright. The bolt carrier group chamber shows minimal wear from prior use.
What’s Included
- Christensen Arms CA9MM 16" rifle (9mm Luger)
- Polymer angled foregrip (installed)
- 1x 30-round magazine
- 2x 16-round magazines
- Note: The pictured drum magazine is not included; only the magazines listed above are included.
The CA9MM is configured around a forged 7075-T6 aluminum receiver set with a hard-anodized finish, delivering a robust base for 9mm operation. The slick-side upper omits a forward assist while retaining an ejection-port cover and a T-marked, continuous Picatinny rail.
Its 16" barrel is threaded 1/2x28 and capped with a factory three-prong flash hider. A 14.75" free-float carbon–aluminum hybrid handguard adds rigidity while keeping weight in check, and provides a full-length Picatinny top rail, M-LOK-style slots, and integrated QD sockets.
The straight-blowback action is paired with a Glock-pattern magazine interface (Gen 4 compatible per factory literature) for broad magazine availability. The magwell is marked "CA 9MM" for clear identification.
Furniture includes an MFT collapsible stock on a carbine extension and a textured polymer AR-type pistol grip. Controls are straightforward, with a manual safety selector and AR-pattern ergonomics tailored to 9mm use. Made in the USA, this model is part of Christensen Arms’ Modern Sporting lineup released circa 2020–2021.