| DOCUMENT TYPE | ENGINEERING DRAWING |
| COLOR | BLACK |
| MATERIAL DOCUMENT AND CLASSIFICATION | SIGSAUERD00021 MFR REF SINGLE MATERIAL RESPONSE OR SIGSAUER D00054 MFR REF SINGLE MATERIAL RESPONSE |
| MATERIAL HARDNESS RATING | 50.0 ROCKWELL C NOMINAL |
| MATERIAL | STEEL CORROSION RESISTING |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | GAS VALVE,HIGH VOLUME |
| PROPRIETARY CHARACTERISTICS | PACS |
| OVERALL DIAMETER | 0.0550 INCHES NOMINAL |
| SPECIAL FEATURES | BLACK OXIDE FINISH |
| SHAPE | CYLINDRICAL |
| WEAPON FOR WHICH DESIGNED | AUTOMATIC RIFLE |
| WEAPON MODEL NUMBER | MCX |
| WEAPON SIZE DESIGNATION | .30 CALIBER, AUTOMATIC |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-DTL-13924 MFR REF 1ST TREATMENT RESPONSE |