Masterpiece Arms MPA Defender 9mm | 4.5″ Threaded Barrel | 17rd

The Masterpiece Arms MPA Defender is a compact semi-automatic handgun chambered in 9mm with a 4.5-inch threaded barrel and accepts Glock-style high-capacity magazines. It ships with one 17-round magazine and includes adjustable front and rear sights plus a scope mount for optics. For a durable, compact red-dot that pairs well with this platform, consider the Holosun 507C as an under-$1000 option suitable for reflex-style aiming. This configuration is well suited to range training and competition where compact handling and accessory flexibility are priorities.

Product Specifications

• The caliber is 9mm.
• The barrel length is 4.5 inches.
• The barrel thread pattern is 1/2 x 28.
• It accepts Glock-style high-capacity magazines.
• The package includes one 17-round magazine.
• The handgun features a side cocker.
• It includes a scope mount for optics integration.
• It ships with adjustable front and rear sights.
• There is a QD attachment point for single-point slings.
• The finish is black Cerakote.
• The grip uses decal grip panels.
• There is a lower Picatinny rail for lights or lasers.
• The product includes an MPA polymer case.
• The UPC is 784672299961.

The MPA Defender brings a compact, accessory-ready package for shooters who want a platform that accepts widely available Glock-style magazines and adds threaded-barrel capability. Its combination of an optic-ready mount, adjustable sights, and accessory rail makes it a flexible choice for range-focused training and competitive pistol work. Ergonomics and finish are tuned for repeated use and straightforward maintenance.

Related Videos: