Fastest easiest way to shoot for self defense and every day carry,easier shooting for everybody This part requires for Sig P365,P365X/XL with pic rail,and has lower pic rail for mounting additional accessories. Makes repeatable, reliable, accurate high power shots much easier. even in high stress situations. No hand strength required,controls recoil even for those without big or strong hands Helps eliminates windage error aka trigger jerk,rapid target acquisition NOTE: does not fits Sig P365 Macro Zzhununt Right Hand trigger finger/Trigger Guard /Training Thumb Rest for Sig P365,P365X/XL,lower picatinny rails mount