Angstadt Arms 0940 UDP Upper — 9mm, 6" Barrel, Black, Tier 1 Package | Includes 9mm BCG, Ambi Charging Handle, Suppressor-Ready 3-Lug Adapter with Blast Can | AAUT109006 (UPC: 853427007547)
Build a compact, soft-shooting PCC the right way with the Angstadt Arms 0940 UDP 9mm Upper (Tier 1 Package). Engineered around a 6-inch 9mm barrel for maximum maneuverability and tuned performance, this premium upper arrives ready to run with a 9mm BCG, ambidextrous charging handle, and a suppressor-ready 3-lug adapter capped by a removable blast can. Finished in a durable black coating and designed to integrate seamlessly with quality 9mm lowers, the 0940 UDP Upper is purpose-built for training, home range work, night-vision/white-light setups, and suppressed shooting (where lawful).
Why Choose the 0940 UDP 6" Tier 1 Upper?
True turn-key package: Comes with the 9mm bolt carrier group, ambidextrous charging handle, and 3-lug adapter + blast can—no parts chase required.
Compact 6" barrel: Short OAL for fast handling in tight spaces, vehicle work, or suppressed builds while maintaining reliable velocities for 115–147gr loads.
Suppressor-ready, out of the box: HK-pattern 3-lug at the muzzle simplifies attaching compatible 9mm suppressors; the included blast can directs concussion forward during unsuppressed use.
Ambi controls: The included ambidextrous charging handle supports strong-side or support-side manipulations and clears tall optics with gloved hands.
Angstadt quality: Known for precise machining and PCC expertise, Angstadt Arms delivers consistent reliability across blowback and delayed-system configurations.
Key Features at a Glance
Caliber: 9mm Luger (9x19)
Barrel Length: 6 inches
Finish/Color: Black
Package: Tier 1 — includes 9mm BCG, ambi charging handle, suppressor-ready 3-lug adapter, and blast can
Muzzle: 3-lug interface (suppressor-ready) with removable blast can
Operating Compatibility: Designed for AR-pattern 9mm builds (blowback or compatible delayed systems)
Model: AAUT109006
UPC: 853427007547
Builder’s note: Confirm your lower’s magazine pattern (e.g., Glock-pattern or Colt-style) and choose the correct ejector/mag catch components. Always verify thread pitch, feed cone/extension style, and buffer/spring tuning for your system.
Performance Benefits You’ll Notice
Fast, flat shooting: The 6" length keeps weight forward minimal for quick transitions and controllable recoil—ideal for dot-driven shooting.
Cleaner blast management: The included blast can pushes pressure and flash forward, improving comfort around barricades or in indoor bays.
Seamless suppression: Snap on a 3-lug-compatible 9mm suppressor (where lawful) for reduced blast and better communication during drills; tune buffer/bolt to taste.
High-reliability cycling: Angstadt’s 9mm BCG is built for hard use and consistent pickup across common bullet weights and magazine patterns (with proper tuning).
Ideal Use Cases
PCC competition & training: Short, responsive upper that accepts common red dots and weapon lights.
Suppressed builds (where lawful): Instant 3-lug convenience with the flexibility to run the blast can when unsuppressed.
Home/ranch utility trainers: Share 9mm logistics with your sidearm; enjoy low recoil and low cost per round.
Vehicle/CQB drills: Compact length makes manipulations, egress, and barrier work more controlled.
Compatibility & Setup Checklist
Lower Receiver: AR-pattern 9mm (Glock-pattern or Colt-style; verify your magwell and ejector).
Recoil System: For blowback systems, use a PCC-weight buffer and appropriate spring to reduce bolt bounce; delayed systems follow manufacturer guidance.
Magazines: Use high-quality mags matched to your lower pattern (e.g., factory Glock or reputable aftermarket).
Optics & Sights: Red dots/prisms mount directly to your top rail; set absolute or lower-1/3 co-witness height as preferred.
Muzzle Devices: The included 3-lug and blast can cover most needs; verify suppressor compatibility and 9mm rating.
Ammo: Quality SAAMI-spec 9mm in 115–147gr; evaluate 147gr subsonic for suppressed use.
Installation Tips
Verify clear/unloaded before any work.
Mate the upper to your 9mm lower; confirm takedown/pivot pin fit and mag presentation.
Check bolt engagement and ejector alignment with dummy rounds.
Tune recoil: Start with a heavier PCC buffer; adjust for reliable lock-back (if supported) and ejection pattern.
Suppressor test: With 3-lug can attached (where lawful), confirm function across your intended loads, paying attention to backpressure and bolt speed.
Specifications
Caliber: 9mm (9x19)
Barrel: 6"
BCG: Included (9mm)
Charging Handle: Ambidextrous, included
Muzzle: 3-lug adapter installed; blast can included (removable)
Finish: Black
Package: Tier 1 (complete upper kit as listed)
Model #: AAUT109006
UPC: 853427007547
(Overall weight, barrel profile, twist rate, and rail length can vary by production—verify specifics on your unit before ordering accessories.)
Frequently Asked Questions
Q: Will this work on a standard 5.56 AR-15 lower?
A: You need a 9mm-dedicated lower (or a magwell adapter/ejector solution) to run 9x19 reliably.
Q: Is the 3-lug compatible with my suppressor?
A: It uses the common HK-pattern 3-lug interface. Confirm your suppressor’s mount is 9mm-rated and follows the same standard.
Q: Do I still need a muzzle device if I use the blast can?
A: The blast can is included and threads to the 3-lug adapter to push concussion forward. You can remove it when attaching a 3-lug suppressor.
Q: Blowback or delayed?
A: The upper ships with a 9mm BCG suitable for AR-pattern 9mm builds. Most users run straight blowback with tuned buffers; follow your lower/system manufacturer’s guidance if using a delayed design.
Q: Subsonic cycling?
A: Many builds run 147gr subsonic well—especially suppressed—after buffer and spring tuning. Always verify reliability with your specific ammo.
Safety, Compliance & Care
Use only factory, SAAMI-spec 9mm ammunition.
Follow all federal, state, and local laws regarding suppressors and configurations.
Keep the BCG and 3-lug interface lightly lubricated; inspect regularly for carbon and debris.
Always wear eye/ear protection and follow the Four Rules of Firearm Safety.
Recommended Pairings
Enclosed-emitter red dot for durable all-weather performance
M-LOK light with pressure pad and cable management clips
PCC-weight buffer (8–10 oz typical) and quality action spring for blowback builds
Glock-pattern or Colt-style magazines from reputable brands
9mm-rated suppressor with 3-lug mount (where lawful)
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Get the compact 9mm upper that’s already configured the way shooters actually run them. The Angstadt Arms 0940 UDP 6" Tier 1 Upper includes the 9mm BCG, ambi charging handle, and 3-lug + blast can so you can mount optics, tune your buffer, and hit the range—suppressed or unsuppressed—with confidence.
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