I currently enjoy a P30 9mm with a trigger Variant 2 (LEM). I am interested in a HK45 and P30L (.40 cal) pistol. Are these two pistols available with the same trigger group (LEM)? Additionally, are variants the same throughout HK pistols (ex. Is a variant 2 on a P30 the same as a variant 2 on a HK45?)? Thank you.