1851 RICHARDS-MASON NAVY

In 1871, an employee from Colt by the name of Charles Richards was awarded a patent for converting Colt percussion models to breech loading cartridge revolvers. The Richards cartridge conversion was an instant success. On July 2nd, 1872, William Mason, another employee from Colt, was awarded a patent for an improvement to the Richards model. As percussion parts ran short, the 1860 Richards-Mason barrel was changed from the profile of the earlier percussion model, to the sleek profile found on the 1871-72 Open Top. The 1858 New Army improved conversion was introduced by Remington in circa 1873 with special factory installed two piece cylinder, leaving the loading lever and adding an ejector. The combination of the design patented by Richards and the cartridge system patented by Mason is kwon as the Richards-Mason conversion. The characteristics that identify this model are: the rear ring without sight and with a cleft to allow the hammer to hit the cartridge and the special barrel made for the Richards-Mason project. (Trademark owned by Cimarron Firearms) FinishesTechnicalParts and Schematics 000: STANDARD A00: OLD WEST ANTIQUE PATINA FINISH REV. B02: COIN FINISH HARDENING C00: CHARCOAL BLUE FINISH G08: HAND RUBBED OIL ON SELECTED WOOD G13: POLYMER IVORY GRIPS G16: POLYMER PEARL GRIPS W00: WHITE FINISH FOR REV. G23: “TIFFANY” GRIP G24: “TIFFANY” SOLID SILVER GRIP N00: NICKEL PLATING FOR REV. Caliber: .38SP Length of Barrel: 4¾” – 5½” – 7½” Overall Length: bbl.5½” 11.18″ Weight: bbl.5½” 2.60 lbs Barrel: Forged steel Frame: Forged steel and color case Triggerguard: Brass Grip: Two pieces walnut Cylinder 6 Barrel Shape: Round Tapered Item Model Barrel Length cal. 0924 RICHARDS-MASON REV.4.34″.38SP CAT.13735 4.3/4″ 38 SPEC. N. Code No. Q.ty Description 1 A0925001 1 RICHARDS-MASON NAVY FRAME ASSEMBLY 2 A0925002 1 RICHARDS-MASON HAMMER ASSEMBLY 3 0924003 1 BARREL .38 4.3/4″ 4 0900004 1 WEDGE 5 0925005 1 CYLINDER .38SP. 7 A0925007 1 RICHARDS-MASON HAND ASSEMBLY 8 0000008 1 CIVIL BRASS BACKSTRAP 10 0000010 1 TRIGGER 11 0000011 1 GRIP 12 0900012 1 BOLT 15 0925015 1 SIGHT 19 0000019 1 TRIGGER BOLT SPRING 20 0400020 1 MAINSPRING 26 0000026 1 CIVIL BRASS TRIGGERGUARD 28 0070028 1 CYLINDER LOCK PIN 31 0000031 2 TRIGGERGUARD SCREW 32 0000032 4 REAR BACKSTRAP SCREW 33 0900033 2 WEDGE SCREW 35 0000035 1 SCREW 36 0000036 1 MAIN SPRING SCREW 37 0000037 1 HAMMER SCREW 38 0000038 1 TRIGGER SCREW 40 0000040 1 BOLT SCREW 136 0925136 1 GATE SPRING 143 A0900143 1 OPEN TOP EJECTOR ROD TUBE ASS. 144 0900144 1 EJECTOR ROD TUBE SCREW 145 0900145 1 GATE CATCH SCREW 492 A0925492 1 RICHARDS-MASON NAVY BREECH ASSEMBLY 675 0900675 1 GATE SCREW 0925 RICHARDS-MASON REV.7 12″.38SP CAT.12311 7.1/2” 38 SPEC. N. Code No. Q.ty Description 1 A0925001 1 RICHARDS-MASON NAVY FRAME ASSEMBLY 2 A0925002 1 RICHARDS-MASON HAMMER ASSEMBLY 3 0925003 1 BARREL .38 7.1/2″ 4 0900004 1 WEDGE 5 0925005 1 CYLINDER .38SP. 7 A0925007 1 RICHARDS-MASON HAND ASSEMBLY 8 0000008 1 CIVIL BRASS BACKSTRAP 10 0000010 1 TRIGGER 11 0000011 1 GRIP 12 0900012 1 BOLT 15 0925015 1 SIGHT 19 0000019 1 TRIGGER BOLT SPRING 20 0400020 1 MAINSPRING 26 0000026 1 CIVIL BRASS TRIGGERGUARD 28 0070028 1 CYLINDER LOCK PIN 31 0000031 2 TRIGGERGUARD SCREW 32 0000032 4 REAR BACKSTRAP SCREW 33 0900033 2 WEDGE SCREW 35 0000035 1 SCREW 36 0000036 1 MAIN SPRING SCREW 37 0000037 1 HAMMER SCREW 38 0000038 1 TRIGGER SCREW 40 0000040 1 BOLT SCREW 136 0925136 1 GATE SPRING 143 A0900143 1 OPEN TOP EJECTOR ROD TUBE ASS. 144 0900144 1 EJECTOR ROD TUBE SCREW 145 0900145 1 GATE CATCH SCREW 492 A0925492 1 RICHARDS-MASON NAVY BREECH ASSEMBLY 675 0900675 1 GATE SCREW 0926 RICHARDS-MASON REV.5.1/2″.38SPEC. CAT.12663 5.1/2” 38 SPEC. N. Code No. Q.ty Description 1 A0925001 1 RICHARDS-MASON NAVY FRAME ASSEMBLY 2 A0925002 1 RICHARDS-MASON HAMMER ASSEMBLY 3 0926003 1 BARREL .38 5.1/2″ 4 0900004 1 WEDGE 5 0925005 1 CYLINDER .38SP. 7 A0925007 1 RICHARDS-MASON HAND ASSEMBLY 8 0000008 1 CIVIL BRASS BACKSTRAP 10 0000010 1 TRIGGER 11 0000011 1 GRIP 12 0900012 1 BOLT 15 0925015 1 SIGHT 19 0000019 1 TRIGGER BOLT SPRING 20 0400020 1 MAINSPRING 26 0000026 1 CIVIL BRASS TRIGGERGUARD 28 0070028 1 CYLINDER LOCK PIN 31 0000031 2 TRIGGERGUARD SCREW 32 0000032 4 REAR BACKSTRAP SCREW 33 0900033 2 WEDGE SCREW 35 0000035 1 SCREW 36 0000036 1 MAIN SPRING SCREW 37 0000037 1 HAMMER SCREW 38 0000038 1 TRIGGER SCREW 40 0000040 1 BOLT SCREW 136 0925136 1 GATE SPRING 143 A0900143 1 OPEN TOP EJECTOR ROD TUBE ASS. 144 0900144 1 EJECTOR ROD TUBE SCREW 145 0900145 1 GATE CATCH SCREW 492 A0925492 1 RICHARDS-MASON NAVY BREECH ASSEMBLY 675 0900675 1 GATE SCREW 0927 RICHARDS-MASON REV.7.1/2″.38 L.C. CAT.12310 7.1/2” 38LC N. Code No. Q.ty Description 1 A0925001 1 RICHARDS-MASON NAVY FRAME ASSEMBLY 2 A0925002 1 RICHARDS-MASON HAMMER ASSEMBLY 3 0925003 1 BARREL .38 7.1/2″ 4 0900004 1 WEDGE 5 0927005 1 CYLINDER .38LC. 7 A0925007 1 RICHARDS-MASON HAND ASSEMBLY 8 0000008 1 CIVIL BRASS BACKSTRAP 10 0000010 1 TRIGGER 11 0000011 1 GRIP 12 0900012 1 BOLT 15 0925015 1 SIGHT 19 0000019 1 TRIGGER BOLT SPRING 20 0400020 1 MAINSPRING 26 0000026 1 CIVIL BRASS TRIGGERGUARD 28 0070028 1 CYLINDER LOCK PIN 31 0000031 2 TRIGGERGUARD SCREW 32 0000032 4 REAR BACKSTRAP SCREW 33 0900033 2 WEDGE SCREW 35 0000035 1 SCREW 36 0000036 1 MAIN SPRING SCREW 37 0000037 1 HAMMER SCREW 38 0000038 1 TRIGGER SCREW 40 0000040 1 BOLT SCREW 136 0925136 1 GATE SPRING 143 A0900143 1 OPEN TOP EJECTOR ROD TUBE ASS. 144 0900144 1 EJECTOR ROD TUBE SCREW 145 0900145 1 GATE CATCH SCREW 492 A0925492 1 RICHARDS-MASON NAVY BREECH ASSEMBLY 675 0900675 1 GATE SCREW 0928 RICHARDS-MASON REV. 5.1/2″.38 L.C. CAT.12662 5.1/2” 38LC N. Code No. Q.ty Description 1 A0925001 1 RICHARDS-MASON NAVY FRAME ASSEMBLY 2 A0925002 1 RICHARDS-MASON HAMMER ASSEMBLY 3 0926003 1 BARREL .38 5.1/2″ 4 0900004 1 WEDGE 5 0927005 1 CYLINDER .38LC. 7 A0925007 1 RICHARDS-MASON HAND ASSEMBLY 8 0000008 1 CIVIL BRASS BACKSTRAP 10 0000010 1 TRIGGER 11 0000011 1 GRIP 12 0900012 1 BOLT 15 0925015 1 SIGHT 19 0000019 1 TRIGGER BOLT SPRING 20 0400020 1 MAINSPRING 26 0000026 1 CIVIL BRASS TRIGGERGUARD 28 0070028 1 CYLINDER LOCK PIN 31 0000031 2 TRIGGERGUARD SCREW 32 0000032 4 REAR BACKSTRAP SCREW 33 0900033 2 WEDGE SCREW 35 0000035 1 SCREW 36 0000036 1 MAIN SPRING SCREW 37 0000037 1 HAMMER SCREW 38 0000038 1 TRIGGER SCREW 40 0000040 1 BOLT SCREW 136 0925136 1 GATE SPRING 143 A0900143 1 OPEN TOP EJECTOR ROD TUBE ASS. 144 0900144 1 EJECTOR ROD TUBE SCREW 145 0900145 1 GATE CATCH SCREW 492 A0925492 1 RICHARDS-MASON NAVY BREECH ASSEMBLY 675 0900675 1 GATE SCREW 0929 RICHARDS-MASON REV.4.3/4″.38 L.C. CAT.17734 4.3/4″ 38LC N. Code No. Q.ty Description 1 A0925001 1 RICHARDS-MASON NAVY FRAME ASSEMBLY 2 A0925002 1 RICHARDS-MASON HAMMER ASSEMBLY 3 0924003 1 BARREL .38 4.3/4″ 4 0900004 1 WEDGE 5 0927005 1 CYLINDER .38LC. 7 A0925007 1 RICHARDS-MASON HAND ASSEMBLY 8 0000008 1 CIVIL BRASS BACKSTRAP 10 0000010 1 TRIGGER 11 0000011 1 GRIP 12 0900012 1 BOLT 15 0925015 1 SIGHT 19 0000019 1 TRIGGER BOLT SPRING 20 0400020 1 MAINSPRING 26 0000026 1 CIVIL BRASS TRIGGERGUARD 28 0070028 1 CYLINDER LOCK PIN 31 0000031 2 TRIGGERGUARD SCREW 32 0000032 4 REAR BACKSTRAP SCREW 33 0900033 2 WEDGE SCREW 35 0000035 1 SCREW 36 0000036 1 MAIN SPRING SCREW 37 0000037 1 HAMMER SCREW 38 0000038 1 TRIGGER SCREW 40 0000040 1 BOLT SCREW 136 0925136 1 GATE SPRING 143 A0900143 1 OPEN TOP EJECTOR ROD TUBE ASS. 144 0900144 1 EJECTOR ROD TUBE SCREW 145 0900145 1 GATE CATCH SCREW 492 A0925492 1 RICHARDS-MASON NAVY BREECH ASSEMBLY 675 0900675 1 GATE SCREW