Angstadt Arms UDP-9 6″ 9mm Complete Upper w/ BCG

This is a complete Angstadt Arms 9mm upper receiver assembly configured for suppressed setups and compatible 9mm lowers. It ships ready with a 6" barrel, a Blastwave blast shield, and a 3-lug muzzle device to accept common 9mm suppressors. The assembly includes a Radian Weapons ambidextrous charging handle and is designed to work with GLOCK- and COLT-style 9mm AR-15 lowers. A BCG is indicated in the source product title.

Key Specifications

• The caliber is 9mm.
• The barrel length is 6".
• The barrel material is Aluminum.
• The rate of twist is 1:10.
• The muzzle system uses a 3-lug muzzle brake and is described as suppressor-ready.
• The assembly includes a Blastwave blast shield.
• The charging handle is a Radian Weapons ambidextrous charging handle.
• The handguard length is 5.5" ultra-light as described in source text.
• The listed weight is 3.1 (unit not specified in source data).
• Compatibility is noted as GLOCK and COLT style 9mm AR-15 lowers.

This upper is a compact, purpose-built option for shooters who require a suppressor-ready 9mm AR upper with a short barrel and lightweight handguard. It pairs established component choices—3-lug muzzle compatibility, Blastwave blast shield, and an ambidextrous charging handle—with a form factor suited to controlled-range setups and compact builds.