The Angstadt Arms UDP-9 SBR is a short-barreled rifle in 9mm with a 6-inch barrel. The firearm is based on a well-established AR-9 platform, featuring a modern and ergonomic design, a straight blowback action, and a B5 Bravo rifle stock. It's ideal for complex tactical operations or as an efficient weapon for home defense or CQB action. The UDP-9 SBR is available in black anodizing or Cerakote finishes, making it suitable for all-day action in harsh conditions. The lower and upper are lightweight but sturdy 7075-T6 aluminum, combined with high-end AR parts to give the rifle a premium look, feel, and functionality. The Angstadt Arms UDP-9 SBR also features B5 furniture, an M-LOK handguard with an integrated Picatinny rail for optics or accessories, a Raptor LT charging handle, an EMT-9 trigger, and an ambi-safety selector. It accepts Glock aftermarket magazines (a factory pack includes a 17-round Glock magazine), which makes it compatible with many ammo and magazine suppliers. With its compact 22-inch length and lightweight design of under 5 pounds, the UDP-9 SBR is an ideal CQB firearm for those seeking a versatile, feature-rich option for home defense, sports shooting, or tactical applications.