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  | ![]() MIL-R-63997B(AR) 
REQUIRE- 
SAMPLING 
INSP . 
DEFECT 
DEFECT 
MENT 
PROCEDURE 
METHOD 
NO. 
pre-function  check  in  order 
not  to  disrupt  zero  setting 
obtained  during  target  and 
(See 
accuracy  test  firing. 
4.7.6.) 
100% 
3.7 
Visual 
Burrs or 
Front  Sight. 
63. 
deformation. 
100% 
3.6 and 
Visual 
Illegible 
Front  Sight. 
64. 
Drawing 
Missing 
marking. 
MIL-L-46000. 
100% 
3.3.3.4 
Gage 
Failure  to 
Front  Siqht. 
65. 
meet approved functional 
bayonet  gages. 
3.3.3.2 
Manual 
66. 
Gas Tube. Failure to 
100% 
securely assemble gas 
tube so there is no re- 
lative  movement  between 
gas tube and front sight. 
100% 
3.3.3.2 
Manual 
Failure  to  align 
Gas Tube. 
67. 
properly  with  carrier  key. 
100% 
3.3.3.2 
Visual 
Mutilation. 
Gas Tube. 
68. 
100% 
3.3.3.1 
Visual 
Pockets, 
Barrel  Assembly. 
69. 
rings,  bulges  or  other 
deformations in bore or 
Particular  at- 
chamber. 
tention shall be given 
muzzle compensator 
shoulder area of bore 
for rings or bulges. 
100% 
3.7 
Visual 
Burrs, 
Barrel  Assembly. 
70. 
cracks  or  mutilation 
of  bolt  locking  lugs. 
23 
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