Speed Master features an open top design for speed, covered trigger for safety and tension screw adjustment for added security, the highly versatile Speed Master 2.0 adds convenient on/off ability to the equation when set up as a paddle holster. The Speed Master 2.0 can also be configured as a solid and stable belt holster using the included belt slot attachment. Compatible with belts up to 1.75". Fits AMT Hardballer w/wo red dot; COLT 5" 1911 w/wo red dot; Kimber 5" 1911, w/rail, w/wo red dot; Para USA 5" single wtack w/wo red dot, 5" staggered w/wo red dot, 5" with single stack mag, 5" with staggered mag; Remington R1, R1 w/wo red dot; Ruger SR1911 5" w/wo red dot; S&W SW1911 5", w/rail, SW1911 5" w/wo red dot; Springfield 5" 1911, w/wo red dot and Taurus PT1911 5" w/wo red dot.