Specifications and features: Taurus 24/7 Pro Semi Automatic Handgun 9mm 4" barrel 1:16" twist with 6 grooves 17 round extended magazine Single/double action Manual safety Firing pin block Trigger block Fixed Heinie Straight-8 sights Black, large polymer frame with black Ribber grip overlay Blued finish 7.125" overall length 29.1 oz unloaded The result of over four years of research and engineering, the 24/7 PRO" offers a combination of features and enhancements unparalleled in modern handguns. The exclusive Taurus Single Action/Double Action trigger system delivers a level of speed and reliability no other handgun can match. Accuracy prevails thanks to a hand-mated frame, slide and barrel, all with matching serial numbers to assure a flawless fit, finish and functionality previously unheard of from an "out of the box" firearm. The 24/7 PRO also leads the industry in ergonomics, featuring Taurus' exclusive Ribber GripÂ® which provides a comfortable, customized feel for every user and every hand size (not available on .45 ACP). In addition, the 24/7 PRO has already set numerous world records in speed shooting competitions, winning high praise from top military, law enforcement and security professionals from around the world. Available in 9mm, .40 S&W and .45 ACP and three distinct barrel lengths, the 24/7 PRO is the duty-use sidearm of the future - and the next pistol that should be at your side.