The Staccato HD is the latest iteration of 2011s built with feedback from professionals in the field. The HD series features updated ergonomics along with a new rear sight setup that mounts in front of the red dot to add additional protection and a more solid racking point while allowing for a clearer sight picture while retaining co-witness capability. Staccato's new HOST mounting system allows for direct mounting of optics to the slide using spacer plates. The new system allows for longer screws to be used for a more secure attachment to the slide. The C3.6 model features an ultra compact 3.6-inch barrel ideal for deeper concealment. The Premium Package features a black DLC barrel finish with a tritium front sight manufactured by Trijicon. The slide features Staccato's X-Series serrations that include lightening cuts to aid in better handling and reduced recoil. Four 15-round steel Glock-pattern magazines are included.