Angstadt Arms UDP-9 9mm 6″ Barrel 15+1


Typically ships within 1 to 3 business days
MFG Part Number: AAUDP09B06
UPC: 00853427007141
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The Angstadt Arms UDP-9 Pistol is a compact AR-15 style firearm chambered in 9mm and fed with GLOCK® magazines. This optic ready pistol features last round bolt hold open. The UDP-9 is a closed bolt, blowback operated system driven by a 9mm bolt carrier group and fed with standard GLOCK® 9mm magazines. Factory Glock® magazines are recomended. The 7075-T6 billet aluminum upper receiver uses appropriately sized ejection port and no forward assist or dust cover. To maximize efficiency and minimize the learning curve, the UDP-9 utilizes a standard AR-15 fire control group and is compatible with most all aftermarket AR-15 Mil-Spec components. The UDP-9 incorporates Angstadt Arms 5.5” free float M-LOK hand guard with a modern, ergonomic, 7 side design that allows for 45 degree offset mounting options. An SB Tactical SBA3 pistol stabilizing brace with 5-position adjustable length of pull settings and an integral, ambidextrous QD sling socket provides one handed stability.


  • Glock compatibility for those that carry a GLOCK® 9mm, backup comes standard without the need to carry alternate magazines and ammunition cartridges.
  • Familiar AR style controls mean a minimal learning curve and intuitive operation.
  • The UDP-9 is crafted from 7075-T6 aerospace billet aluminum to be lighter and stronger.
  • The compact size of the UDP-9 makes it ideal for home defense, security detail, law enforcement and anywhere space is at a premium.
  • Last round bolt hold open on an empty magazine.
  • Flared magwell for faster reloads.
  • Integrated, oversized trigger guard for gloved hands.


  • Caliber: 9mm
  • Barrel: 6” chrome moly threaded barrel with a 1/10 twist
  • Overall Length: 22″
  • Weight: Sub 5lbs
  • 7075-T6 billet aluminum lower with a matte black hard-coat anodized finish
  • 7075-T6 billet aluminum slick side upper receiver
  • Threaded bolt catch screw
  • 9mm bolt assembly & standard AR-15 hammer
  • A2 style flash suppressor
  • SB Tactical SBA3 pistol stabilizing brace
  • Magpul K2 or B5 Systems pistol grip (depending on availability)
  • Angstadt Arms 5.5” free float M-LOK hand guard
  • Continuous top mil-spec 1913 picatinny rail
  • Accepts all Glock® aftermarket magazines.
  • Includes one 15 round magazine


  • UDP-9 9mm AR Pistol with SBA4 Brace
  • (1) 15 Round Magazine
  • Cable Lock
  • Owner’s Manual
More Information
Product Name Angstadt Arms UDP-9 9mm 6″ Barrel 15+1
Caliber 9mm
Action Semi-Automatic
Barrel 6.00″ – 8.99″


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