The UZI PRO pistol is a modernized Micro UZI semi-auto pistol based on the world famous UZI sub-machinegun. The blow-back operated 9mm UZI PRO incorporates advanced polymers in the lower section of the receiver resulting in lighter weight and relocation of the magazine release to a more practical and traditional pistol based location. Unlike earlier UZI models, the charging handle has been moved from the top of the pistol to the left side of the receiver. This allows the addition of a full length Picatinny rail to the top of the pistol, permitting the use of any optical device that utilizes a Picatinny rail clamp mount. An additional Picatinny rail is incorporated in the polymer lower that allows the use of lights and/or lasers to be mounted directly under the barrel. The UZI PRO SB features a side-folding Stabilizing Brace, produced for IWI US by SB Tactical LLC, designers and manufacturers of the original SB15 and SB47 Pistol Stabilizing Braces.