File or grind out this area so you can eject the 9/16" spent shell with your fingernail 1/8" 1/16" 1/2" 2 3/8" 1/4" 1/4" 2 3/4" Barrel Retaining Bolt Breech Block .22 cal cartridge for reference 5/32" 9/32" 15/64 1/8" 7/32" 1 1/8" 1/8" 1/8" 7/32" 1 1/8" 3/16" Grip Pattern and This is the pattern location of mounting for the spacer. holes. Use a good Cut it out of 1/4 quality wood, like mild steel walnut, or a hard composite material Frame Sides Cut 2 out of 1/8 mild 1/8" steel or brass You will need to Cut the hammer 1/16" locate 3 to 4 out of 1/4 mild A areas where you steel. The trigger can pin or screw notch will require the frame sides final fitting and to the spacer and polishing after the breech block gun is assembled 1/4" 9/32" Spur Trigger. Cut out of 1/4 mild steel This is the general shape need for the main spring make it out of heavy spring steel and screw it This is the trigger to the frame tension spring it spacer can be made ouf of a lighter weight spring steel than the main spring. 1/8" 1/8"