Angstadt Arms MDP-9 6in Complete Roller Delay Upper Receiver Assembly Review

Let’s Talk About Angstadt Arms MDP-9 6in Complete Roller Delay Upper Receiver Assembly

The Angstadt Arms MDP-9 6in Complete Roller Delay Upper Receiver Assembly is more than just an AR-9 upper; it’s a compact powerhouse designed for those who prioritize maneuverability and controlled recoil. Manufactured by Angstadt Arms, this upper receiver assembly boasts a unique roller-delayed operating system, a short 6-inch barrel, and compatibility with standard AR-9 lowers. It’s designed for the modern shooter who demands a reliable and compact 9mm platform.

I’ve been searching for a compact 9mm upper receiver that offered more than just direct blowback operation. I wanted something that mitigated recoil and allowed for faster follow-up shots in close quarters. My focus was on finding a 9mm upper that could be quickly deployed from a vehicle.

Unboxing the MDP-9, I was immediately struck by its robust construction and relatively lightweight feel. The finish was impeccable, and the fit and finish screamed quality. The 1913 Picatinny end plate offered versatile brace/stock options and the non-reciprocating charging handle felt solid.

Compared to other direct blowback AR-9 uppers I’ve handled, the Angstadt Arms MDP-9 stood out because of its roller-delayed system, promising significantly reduced recoil. Other options, like the CMMG Radial Delayed Blowback system, were considered. I chose the MDP-9 for its MP5-esque roller-delayed operation and anticipated enhanced smoothness.

My initial impression was one of excitement and anticipation. The Angstadt Arms MDP-9 6in Complete Roller Delay Upper Receiver Assembly felt like a premium product, and I was eager to see how it performed on the range. I knew this could be a game changer for compact PDWs chambered in 9mm.

Check Best Price HERE

Real-World Testing: Putting Angstadt Arms MDP-9 6in Complete Roller Delay Upper Receiver Assembly to the Test

First Use Experience

My first experience with the Angstadt Arms MDP-9 was at an outdoor shooting range, under sunny, dry conditions. I mounted it on a dedicated AR-9 lower receiver with a quality trigger. I wanted to assess accuracy and felt recoil.

The MDP-9 cycled flawlessly with various 9mm loads. I found the felt recoil to be noticeably softer than direct blowback 9mm AR pistols, which allowed for quicker follow-up shots. The 6″ barrel maintained accuracy out to 50 yards, which more than met my expectations for a compact PDW.

It took almost no time to get accustomed to the MDP-9. The controls were intuitive, and the non-reciprocating charging handle was easy to manipulate. The only minor surprise was the slightly different recoil impulse compared to a standard AR-15, but it was easily manageable.

Extended Use & Reliability

After several months of use and hundreds of rounds fired, the Angstadt Arms MDP-9 has proven to be incredibly reliable. There have been no malfunctions. I’ve put it through its paces in training scenarios and recreational shooting.

The finish has held up remarkably well, showing no signs of significant wear despite being transported in and out of range bags. The internals still look pristine after routine cleaning. I’ve had no issues with durability whatsoever.

Maintenance is straightforward. The MDP-9 disassembles similarly to a standard AR-15, making cleaning and lubrication simple. The roller-delayed system requires a bit more attention to detail when cleaning, but it’s still a manageable process.

Compared to my previous experiences with direct blowback AR-9s, the Angstadt Arms MDP-9 is a clear winner. The smoother recoil impulse and overall reliability make it a far superior choice for serious use. It outperforms everything else in its class.

Breaking Down the Features of Angstadt Arms MDP-9 6in Complete Roller Delay Upper Receiver Assembly

Specifications

• Caliber: 9mm Luger. This makes it versatile and chambered in an affordable pistol caliber.
• Weight: 3.7 lbs. The relatively light weight makes it easily manageable for prolonged use.
• Barrel Length: 5.85 inches. The short barrel enhances maneuverability in tight spaces.
• Overall Length: 14 inches. Its compact size makes it perfect for vehicle deployment or concealment.
• Finish: Matte Black. This helps reduce glare and provides a tactical appearance.
• Magazine Included: No. This allows users to choose their preferred AR-9 magazine.
• Mount Type: Picatinny. Provides flexibility for mounting optics and accessories.
• Attachment Type: Picatinny. This facilitates the attachment of stocks and braces.
• Angstadt Arms boasts that the system utilizes a proven, reliable roller-delayed action. This significantly reduces felt recoil compared to direct blowback systems.
• Features a 5.85″ MP5 profile barrel with 3-lug. This is ideal for mounting suppressors and other muzzle devices.
• Includes a 1913 Picatinny end plate that accepts a wide variety of stabilizing braces and rifle stocks. This provides great flexibility in configuring the weapon for individual needs.
• Non-reciprocating forward charging handle that can be swapped from left to right side. This allows for ambidextrous operation.
• Works with most last round bolt hold open features utilizing a Mil-spec bolt catch. Enhances usability and convenience.

Performance & Functionality

The Angstadt Arms MDP-9 6in Complete Roller Delay Upper Receiver Assembly excels in performance. The roller-delayed action provides smooth and controlled recoil. The 6-inch barrel delivers acceptable accuracy at typical pistol engagement ranges.

The primary strength lies in its smooth recoil impulse. It allows for rapid and accurate follow-up shots. One potential weakness could be its price point, which might deter some buyers.

It exceeds expectations. The MDP-9 offers a shooting experience that is far superior to other 9mm AR pistols in its class. The roller-delayed action is a game-changer.

Design & Ergonomics

The build quality is excellent. The materials are high-grade, and the fit and finish are top-notch. At 3.7 lbs, it’s lightweight and comfortable to handle.

It is user-friendly. The controls are intuitive, and the charging handle is easy to manipulate. There is virtually no learning curve for experienced AR-15 shooters.

Durability & Maintenance

With proper care, the Angstadt Arms MDP-9 should last for thousands of rounds. Its high-quality construction suggests excellent longevity.

Maintenance is relatively easy. Regular cleaning and lubrication are sufficient to keep it running smoothly. The roller-delayed system requires slightly more attention than a standard AR, but it’s not overly complicated.

Accessories and Customization Options

The Angstadt Arms MDP-9 does not come with a plethora of accessories, focusing instead on the core functionality of the upper receiver. The 1913 Picatinny rail allows for the attachment of various stocks or braces.

The 3-lug barrel makes it easy to mount suppressors. The MDP-9 is compatible with most AR-9 lower receivers and accepts standard AR-15 triggers and pistol grips. This offers broad customization options.

Pros and Cons of Angstadt Arms MDP-9 6in Complete Roller Delay Upper Receiver Assembly