Equipment Exchange

This is a lightly used MDP-9® GEN2 ROLLER DELAYED UPPER.
I had a roller break on me and sent it back to the factory for service and just haven't used it much since.
It is a really smooth shooter and the internal recoil system which doesn't require a buffer tube makes for a crazy compact PDW type PCC.
I don't have an exact round count, but estimate significantly less than 1K rounds.
There are some handling marks that I've tried to capture in the below photos.
These are out of stock and hard to come by right now.
All NFA/ATF rules of course apply.

Looking for $1,395 shipped to you.

A link to a RECOIL magazine review is below...
https://www.recoilweb.com/angstadt-arms-mdp-9-review-174926.html








This information is copied from the Angstadt Arms website:

COMPACT POWER: ANYTIME READY
The MDP-9 GEN2 roller delayed action is now available as a stand alone upper receiver assembly. This is a direct upgrade for existing Angstadt Arms UDP-9 firearms and 3rd party AR9 lower receivers.

Experience unmatched portability without compromising performance

Light and Agile: With a length of just 14” and weighing 3.7lbs, the MDP-9 promises easy concealment
Smooth Performance: Leveraging the roller delayed system, expect significantly less recoil, ensuring precision even in high-pressure scenarios
Modern Design: Drawing elements from the AR-15/M4 platform, the MDP-9 is both familiar and revolutionary
In a world filled with unforeseen threats, traditional firearms lack the combination of power and compactness needed for immediate response.

The MDP-9 is designed to be light, small, yet fully functional, offering a revolutionary roller delay action that reduces recoil. Gain the peace of mind and confidence you need for protection in any situation, with the perfect balance of size and strength.

MDP-9 GEN2 Roller Delayed Upper Specifications:

ACTION: Roller-delayed blowback
CALIBER: 9x19mm
FINISH: Black Type III Hard Coat Anodized
UPPER ASSEMBLY: 7075-T6 aluminum monolithic upper receiver assembly with continuous top picatinny rail, M-LOK interface and QD sling points
CHARGING HANDLE: Non-reciprocating ambidextrous forward charging handle (can be swapped from left to right side)
BARREL: 5.85? chrome moly black melonite barrel with a 1/10 twist and threaded 1/2×28 TPI
MUZZLE DEVICE: Removable 3-lug muzzle device
ENDRAIL INTERFACE: Includes 1913 endrail with QD sling socket. Endrail will accept most 1913 side-folding & telescoping pistol brace and stock options
FURNITURE: Angstadt Arms handstop
LRBHO: The Last round bolt hold open functionality is determined via your lower receiver
FIRE CONTROL COMPATIBILITY: The MDP-9® roller delayed upper is compatible with many 9mm PCC triggers. Please see this page for trigger compatibility. We recommend the EMT-9 PCC Trigger
OVERALL LENGTH WHEN INSTALLED: 14?
WEIGHT: 2.58 lbs
COUNTRY OF MANUFACTURE: Made in Charlotte, NC USA!
Patented
Lower Receiver Compatibility:
The MDP-9 upper is designed to work with a wide range of AR9 GLOCK magazine lower receivers, as well as mil-spec AR-15 receivers.

For the best possible function we strongly recommend our AR9 lower receiver however, we have successfully tested the MDP-9 upper with these 3rd party receivers. Please note due to 3rd party manufacturing tolerances we can’t ensure 100% reliability in every third party configuration.

Angstadt Arms 0940 9mm Receiver
Angstadt Arms UDP-9
Aero Precision EPC-9
Quarter Circle 10 QC10 Ranger (GSF)
Palmetto State Armory PSA PX-9
Foxtrot Mike Mike-9
New Frontier Armory C-9
CMMG Banshee MkG
CMMG Banshee Mk17 (Sig Sauer P320/M17/M18 pattern magazines)
Lone Wolf Distributors Glock magazine lower receiver
Mil-Spec AR-15 lower receiver with Mean Arms EndoMag. “Ejectorless” CMMG version only
The MDP-9 roller-delayed action incorporates a spring-loaded ejector within the upper receiver. For proper function you will need to remove the ejector in your lower receiver. Typically, this is secured in position with a roll pin or set screw. Please note the MDP-9 upper is not compatible with Colt, MP5, or CZ Scorpion magazine lower receivers.