The Angstadt Arms MDP-9 is a semi-automatic 9mm Luger pistol built on an AR-style platform. It has a 5.85-inch barrel, 14-inch overall length, weighs 3.60 lbs, and ships with a 17-round magazine (27+1 configuration available). The receiver is 7075-T6 aluminum, the grip is black polymer, and the finish is Tactical Gray. 
 

Key Specifications 

• Brand: Angstadt Arms 
• Model: MDP-9 
• Caliber: 9mm Luger 
• Action: Semi-Auto 
• Capacity: 17 rounds (27+1 configuration available) 
• Barrel Length: 5.85" 
• Overall Length: 14" 
• Weight: 3.60 lbs 
• Sights: Optic Ready 
• Grip Material: Black Polymer 
• Receiver Material: 7075-T6 Aluminum 
• Finish Color: Tactical Gray 
   

Detailed Features 

The 7075-T6 aluminum receiver is the same alloy used in AR-15 lowers — strong without adding unnecessary weight. The optic-ready top allows direct mounting of most red dot sights. A Picatinny rail at the front of the receiver accepts lights or lasers. The M-Lok free-float handguard gives a stable grip surface and additional mounting points. The safety selector is ambidextrous.

Owners of the Angstadt MDP-9 in 9mm generally react well. The build quality draws consistent compliments — the 7075 aluminum receiver feels solid, and the Tactical Gray finish looks clean. The optic-ready setup is one of the bigger selling points; people who want a dot on a compact platform like that it doesn't require any extra machining.

Accuracy and recoil control come up positively in most hands-on accounts. A handful of owners mention occasional reliability issues or ammo sensitivity worth noting for anyone planning to use it as a primary defensive gun.

The compact size gets mentioned as a positive for home use and range work alike. Price opinions vary — some feel it's fair for the features and machining quality; others compare it unfavorably to cheaper options in the PCC/pistol space.

There's an active user community around this platform, which helps with sharing accessory and modification info.