Colt Model O Armorer's Pistol Manual1911. This nice reproduction manual is for the Colt Model O Armorer's Pistol. Eight chapters and 51 pages cover topics such as: Introduction, Tool Kit and Supplies, Inspection Procedures, Troubleshooting, Disassembly and Assembly for Repair, General Part Fitting, Title, Care and Maintenance, Exploded View and Parts Lists and much more.