Firing mechanism for firearm apparatus

Firing mechanism for a firearm having a pair of spaced apart receiver side plates, comprising:

• a substantially flat sear bar having an elongate member, and first and second flat fingers extending outwardly from spaced apart locations on said elongate member;
• each of said fingers extending through and being received in a respective first slot in one of said side plates and a respective second slot in the other said side plate, so that each of said fingers extends between the side plates, with each of said slots being elongated to a greater extent than the corresponding dimension of the finger received therein to allow the fingers to undergo an extent of sliding movement within said slots;
• said first one of said sear bar fingers having a sear surface;
• a hammer mounted for firing movement along a predetermined path from a cocked position to contact a firing member, said hammer having a sear contact means which selectively engages said sear surface to block said firing movement;
• and
• trigger means mounted in operative relation to said second sear bar finger to urge said second sear bar finger and thus said sear bar for movement in a direction which withdraws said sear surface from engagement with said sear contact means, so that said hammer is freed for firing movement along said predetermined path to contact the firing member.