| CALIBER QUANTITY PER RIFLING TURN | 1 TURN IN 35.555 CALIBERS |
| FSC APPLICATION DATA | PISTOL,CAL. .45 AUTOMATIC |
| GROOVE WIDTH | 0.147 INCHES MINIMUM AND 0.160 INCHES MAXIMUM |
| LAND WIDTH | 0.085 INCHES NOMINAL |
| OVERALL LENGTH | 5.031 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-W-27265, CLASS R MIL SPEC ALL MATERIAL RESPONSES |
| MATERIAL | FABRIC, NYLON AND RESIN |
| RIFLE BORE GROOVE QUANTITY | 6 |
| RIFLING DIRECTION | LEFT-HAND |
| SIZE DESIGNATION | .45 CALIBER, AUTOMATIC |
| SPECIAL FEATURES | BARREL HARDNESS ROCKWELL D SCALE 53 TO 58.5 |
| WEAPON MODEL NUMBER | M1911A1 |
| WEAPON SIZE DESIGNATION | .45 CALIBER, AUTOMATIC |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-C-320, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE INSIDE |
| SURFACE TREATMENT | PHOSPHATE MANGANESE LOCATION NOT OTHERWISE SPECIFIED |
| SURFACE TREATMENT | CHROMIUM INSIDE |