The Staccato P4.5 HD advances the 2011 platform with refined ergonomics, an optimized grip profile, and compatibility with Glock-pattern magazines. Its 4.5-inch barrel and extended sight-block add non-reciprocating mass at the front of the pistol, a design intended to produce a softer shooting experience while retaining the platform's fast cycling speed. The stainless steel sight-block is machined as part of the barrel assembly and has no threads, making this configuration suitable for jurisdictions that restrict threaded barrels. The optics-ready HD slide supports direct mounting for RMR and Delta Point Pro footprints with the appropriate spacer, sold separately. Finished in black with an ODG Tac Texture grip, this Premium Package includes four 18-round magazines, X-Series slide serrations, a DLC-finished barrel, and a Trijicon night sight. Specifications Manufacturer: Staccato Series: HD Model: P4.5 HD Caliber: 9mm Action: Semi-automatic Capacity: 18+1 Included Magazines: Four 18-round magazines Barrel Length: 4.5" Frame: CS frame Sight-Block: Stainless steel, non-threaded design Slide: Optics-ready with X-Series serrations Optic Compatibility: RMR and Delta Point Pro footprints; spacer sold separately Barrel Finish: DLC Front Sight: Trijicon night sight Rear Sight: Forward-set black sight Recoil System: 4" flat wire Grip: Tac Texture Safety: Ambidextrous thumb safety Weight: 34 oz. Color: Black/ODG Premium Package Includes: X-Series slide serrations, DLC barrel, four 18-round magazines, and Trijicon night sight Magazine Compatibility: Glock-pattern magazines Get it at BattleHawk Armory!