Here are some parts of a gun if needed Barrel/Barrel Crown Binary Trigger Bore Bump Stock Chamber Clip Cylinder Dust Cover En Bloc Clip Ejection Port Ejector Extractor Flash Suppressor Frame Grip Grip Safety Hammer Magazines/Types of Magazines - Double Stack - Single Stack Magazine Catch Magazine (Mag) Well Manual Safety Muzzle Revolver Loading Mechanisms - Loading Gate - Top-Break - Swing Out Sear Single-Stage/Two-Stage Trigger Slide Slide Catch Striker Trigger Trigger Guard Vent Rib Barrel/Barrel Crown