The Q4 TAC comes with a barrel threaded in 1/2x28, and an additional "suppressed" recoil spring making it out-of-the-box suppressor ready. The optics-ready slide comes with an LPA fiber-optic front sight and a rear LPA competition iron sight. The Q4 TAC shares the same mounting plate system as the Q5 Match that accommodates most popular optics, including Trijicon, Leupold, and Doctor. The new Q4 will be available in 9 mm with a threaded 4.6" 1/10" twist polygonal rifled barrel. The Q4 TAC shares the best in class PPQ Quick Defense trigger, which provides a smooth 5.6-lb. trigger pull and a short 0.1" reset. The Q4 TAC comes with one 15-round, and two 17-round magazines. Overall length is 7.8" and an empty magazine weight of 26 oz. The Q4 TAC is backed by Walther's lifetime warranty and dedication to technical expertise.
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