MasterPiece Arms Defender MPA30SST 9mm, 6" Threaded Barrel, 30+1, Black Full-Size Pistol
The MasterPiece Arms Defender MPA30SST brings the iconic MAC-10 lineage into the modern era with CNC-machined 6061-T6 billet construction, a side-mounted charging handle that keeps the top clear for optics, and a factory-threaded 6-inch barrel ready for muzzle devices. Its robust blowback action, generous 30-round capacity, and hard-coat anodized finish make this U.S.-built pistol a standout for shooters who want proven heritage with contemporary features.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent – Clean, mirror finish with sharp lands and grooves.
Specific Condition Notes: Minor surface scratches are present on the exterior but do not affect function.
What’s Included
- Lockable polymer carry case with factory MPA30SST label
- Two 30-round MasterPiece Arms polymer stick magazines
- Factory cylindrical safety extension (faux suppressor) thread protector
- Factory nylon wrist sling strap (installed)
The MPA30SST is built on a monolithic aluminum lower that integrates a full-length accessory rail, giving shooters an easy way to attach lights or lasers without additional hardware.
A 1/2-28 TPI threaded muzzle pairs with the included safety extension, enabling quick swaps to preferred muzzle devices while protecting the threads when not in use.
The side-cocking redesign eliminates the need for a top-mounted charging handle, preserving an uninterrupted sight plane and allowing the flip-up polymer sights to deploy cleanly.
A rotary disk safety offers positive ambidextrous operation, and a built-in QD socket simplifies sling attachment for added control during range sessions.
With a 30-round capacity, adjustable sights, and lineage to the original Ingram design, this full-size Defender delivers a familiar profile backed by modern materials and machining.