Masterpiece Arms Defender 9mm 17+1 Pistol, Black – MPA30DMG ‎ This is the new 9mm Pistol based on the 30sst, but includes a fully machined aluminum pistol grip that accepts Glock Magazines. (accepts 17 and 33rd mags only). The grip is Masterpiece’s most ergonomically designed grip system incorporating a “Solidworks” designed profile allowing the use of standard Glock style magazines, with a low profile magazine release and “Decal Grip” grip panels. The pistol also includes additional upgraded features such as adjustable front and rear sights, plus cerakote flat dark earth coating. This is also a multi caliber pistol. The firearm can be modified to fire 5.7x28mm with a bolt, barrel and pistol grip change.