Angstadt Arms UDP-9 9mm 16" - Pistol Caliber Carbine - 1x 15rd Mag

The Angstadt Arms UDP-9 is a semi-automatic 9mm carbine with a 16-inch barrel, a direct impingement operating system, and a free-float handguard. It ships with one 15-round magazine. The AR-15 format means shooters familiar with the AR platform can transition to this 9mm carbine with minimal adjustment.

The 16-inch barrel is threaded 1/2x28 for muzzle devices and suppressor mounts. The free-float handguard provides accessory mounting for lights and grips. The upper and lower receivers are constructed from 7075 aluminum with Type III Hardcoat Anodized finish. The 16-inch barrel optimizes 9mm velocity for defensive and competition use.

Running 9mm reduces per-round cost compared to rifle ammunition, making extended training sessions more affordable. The 9mm carbine format also provides reduced recoil for faster follow-up shots and lower overpenetration risk in home defense scenarios compared to rifle-caliber platforms.

The UDP-9 accepts AR-9 pattern magazines in 9mm. Magazine compatibility varies by configuration — consult product specs for GLOCK-pattern or Colt SMG-pattern magazine details. One 15-round magazine is included.

The UDP-9 is compatible with AR-9 pattern lower receivers and standard AR-15 controls.

The UDP-9 suits competition shooters, home defenders, and range enthusiasts who want a 9mm AR-format carbine with familiar controls and reduced operating costs.

Angstadt Arms specializes in precision-machined pistol caliber carbines and AR-format firearms. The company is known for tight tolerances and clean designs, made in the USA.