| FEAT |
SPECIAL FEATURES |
PHOSPHATE IS NOT SAND BLASTED OR APPLIED TO INTERNAL SURFACESL SUPPLEMENTAL OIL TREATMENT IS APPLIED AFTER PAINTING; PAINT IS HEAT RESISTANT PER MIL-STD-193,COLOR NO. 15200 OF FED-STD-595,APPLIED TO SPECIFIC EXTERNAL SURFACES ONLY; CHROMIUM PLATING IS APPLIED ONLY TO INTERNAL SURFACES; NO MECHANICAL METHOD FOR REMOVAL OF CHROMIUM PLATEPERMITTED; PLATING WILL PRODUCE A CONTINUAALY DIMINISHING DIA. TOWARDS THE MUZZLE,EXCEPT THAT FROM THE ORIGIN OF RIFLING TO WITHIN 102 MM. OF THE MUZZLEND; A VARIATION OF 0.025 FROM A CONTINUALLY DIMINISHING DIA. IS PERMISSIBLE AND 0.013 VARIATION IS PERMISSIBLE OVER THE REMAINING LG. PROVIDED THAT RESULTANT SURFACES REMAIN WITHIN OVERALL DENSIONAL LIMITS FOR BORE AND GROOVE DIA.; HEAT TREATMENT IS TO HEAT BARREL AND PISTON AT 1550-1575 DEG. F.,OIL QUENCH,TEMPER 1 HR. MIN. TO ROCKWELL HARDNESS RC 28-36; GAS PORTS-HOLES ARE LOCATED WITHIN BARREL RIFLING GROOVES |
| ALJP |
SIZE DESIGNATION |
.50 CALIBER |
| AGAV |
END ITEM IDENTIFICATION |
RECOIL AMPLIFIER ASSY(M3),NSN 1005-01-323-5406 |
| SURF |
SURFACE TREATMENT |
PHOSPHATE, MIL-P-16232, TYPE M, CLASS 1 AND PAINTED |
| AAJQ |
INSIDE SURFACE TREATMENT |
CHROMIUM, QQ-C-320, CLASS 2A |
| ABHP |
OVERALL LENGTH |
1143.0 MILLIMETERS NOMINAL |
| MATL |
MATERIAL |
STEEL, AISI 4150 AND STEEL, AISI 4140 |
| TMDN |
TYPE/MODEL DESIGNATION |
M3 |