Check the listing for details. Surefire DG-15 — HK USP Compact 40/45 (using MR08). Condition: New. Listed at 114.99 USD. Surefire DG-15 — HK USP Compact 40/45 (using MR08) New For surgical control when using an X-Series WeaponLight (X300, X400), the DG grip switch uses a minimal center-mounted pad. This allows the operator to activate the light with finger pressure without needing to move a finger from the grip. SureFire DG overview Compatible with SureFire's X-Series Weaponlights, the DG Grip Switch Assembly replaces the light's rear battery cap and provides a remote pressure switch to give you momentary-on control without having to move your hand from the handle. The pressure pad switch can be mounted to the handgun's frame just below the trigger guard and is controlled with your middle finger, allowing you to keep your trigger finger ready for use. Installation of the DG switch maintains the light's integrated dual toggle switches to maintain the stock constant-on and momentary activation capabilities. Listing and template services provided by inkFrog