Sight mounting system for a firearm

An accessory mounting plate for a firearm comprising:

• a top side;
• an opposing bottom side;
• a mounting slot disposed along a bottom surface of the accessory mounting plate and configured to slidably receive at least a portion of a mounting rail from the firearm therein;
• and
• an accessory mounting surface disposed along the top side and configured to receive a removable sight thereon,
• wherein the mounting rail gradually widens from a breech end of the firearm towards a muzzle end of the firearm,
• wherein the accessory mounting plate further comprises:
• an alignment pin cavity in fluid communication with the mounting slot and extending from a first side to an opposing second side of the mounting plate, wherein the alignment pin cavity is configured to receive an alignment pin therein;
• and a first threaded aperture disposed adjacent a front wall of the accessory mounting plate, wherein the threaded aperture is in fluid communication with the alignment pin cavity and the mounting slot.

A method of attaching a sight to a firearm comprising:

• providing the firearm comprising:
• a frame;
• a barrel;
• and
• a sight plate mounting area comprising a mounting rail comprising a front wall and an opposing rear wall;
• providing a sight mounting plate comprising:
• a front wall;
• an opposing rear wall;
• a first side wall;
• a second side wall;
• a bottom side comprising a mounting slot;
• and
• a top side comprising:
• a sight mounting surface;
• a sight removably coupled to the sight mounting surface;
• and
• a first threaded aperture extending from the top side to the bottom side and in fluid communication with the mounting slot;
• an alignment pin cavity extending from the first side wall to the second side wall the alignment pin cavity comprising an inner wall;
• slidably coupling the sight mounting plate to the sight plate mounting area;
• inserting an alignment pin into the alignment pin cavity;
• and
• threadably coupling a threaded coupling device into the first threaded aperture, wherein the threaded coupling device contacts the alignment pin and forces the alignment pin between the inner wall of the alignment pin cavity and one of the front wall and the rear wall of the mounting rail.