The Staccato HD P4.5 Base is the foundation of the new HD P4.5 lineup, built for shooters who demand performance and simplicity. Featuring a 4.5" sight-block barrel, it delivers increased non-reciprocating mass for softer recoil while preserving the fast cycling speed of the original P4. The integrated stainless steel sight-block design is non-threaded, making it compliant in states with threaded barrel restrictions. The extended frame complements the longer barrel setup for superior balance and control. The HD HOST optics mounting system is carried over from the P4, ensuring compatibility with existing HD HOST plates. Ships with 2 MecGar 18-round magazines. Staccato Preferred HD P4.5 9mm DLC Barrel Trijicon Night Sight DLC/DLC Finish 3x Mags (Magwell) 20-2300-000106