Next-Level Modularity: MasterPiece Arms’ Matrix Chassis System – SHOT Show 2020
MasterPiece Arms has released the ultimate Chassis: the ultra-adjustable Matrix. This new chassis system is configurable in 125 different ways.
Masterpiece Arms is an American firearms manufacturer known for precision-engineered pistols, carbines, and competition-ready platforms. Built with innovation and rugged craftsmanship, Masterpiece Arms Defender series and DS9 pistols deliver accuracy, reliability, and modern performance. Whether you’re seeking a concealed carry handgun, a tactical platform, or a competitive edge, Masterpiece Arms firearms are trusted by shooters nationwide. Explore Masterpiece Arms for sale today at GunsAmerica.


Designed for serious shooters, Masterpiece Arms firearms offer pinpoint accuracy, smooth cycling, and competition-level consistency across all platforms.

From self-defense to tactical use and competitive shooting, Masterpiece Arms pistols and carbines adapt seamlessly to diverse applications.

Constructed in the USA with premium materials, MPA firearms are built to last—delivering strength, reliability, and long-term performance.






Founded in Georgia, Masterpiece Arms built its reputation by modernizing the iconic MAC-style firearm and expanding into precision competition pistols. Today, MPA is trusted by professionals and competitors worldwide.
Top models include the Masterpiece Arms 9mm Defender, valued for tactical reliability, the DS9 competition pistol, and the MAC 10 .45ACP, known for its classic power.
If you need a defensive or tactical pistol, the MPA Defender 9mm is ideal. For competitive shooting, the DS9 delivers precision performance. For collectors or heavy-hitting firepower, the MAC 10 .45ACP is a standout.
Popular Defender accessories include optics mounts, extended magazines, suppressors, and custom grips, allowing shooters to tailor their setup.
Always unload before cleaning. Use a bore brush with solvent, clean the chamber and slide rails, then lightly oil moving parts. Proper care ensures lasting reliability.
Most MPA models feature manual safeties, durable firing mechanisms, and solid construction. Always follow basic firearm safety rules and store securely.
Masterpiece Arms (MPA) is a U.S.-based firearms manufacturer recognized for blending innovation with rugged design. Known for the Defender series, precision pistols, and competition platforms, MPA offers firearms trusted by professionals, competitors, and collectors alike. With a focus on reliability, customization, and accuracy, Masterpiece Arms continues to deliver firearms that meet the demands of modern shooters.
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MasterPiece Arms has released the ultimate Chassis: the ultra-adjustable Matrix. This new chassis system is configurable in 125 different ways.

The MPA BA PMR “Competition Ready” Rifle configuration includes several key accessories, an MPA BA mount, and optic.

Over a dozen new colors and patterns now available for all MPA rifle and chassis orders.