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|  MIL-R-63997B(AR)
DEFECT
DEFECT
INSP .
REQUIRE-
SAMPLING
NO.
METHOD
MENT
PROCEDURE
Barrel Assembly. M i s s i n g
71.
Visual
100%
3.6
proof marks, magnetic
particle stamp and
chrome chamber marking.
72.
Barrel Assembly.
Failure
Gage
Drawing
100%
grenade launching diameter
of flash suppressor to meet
approved gage.
Barrel Assembly Straiqht-
73.
3.3.3.1.1
100%
Gage
Failure of barrel
and
ness.
Drawing
to meet approved "go" bore
6 inch drop gage.
Ejection Port Cover
Visual
3.7
74.
100%
Burrs
Assembly Group.
or deformations.
3.3.3.6
75.
Manual
Ejection Port Cover.
100%
Failure to be manually
closed.
*
76.
Visual
3.3.3.6 &
Ejection Port Cover
100%
drawing
Assembly Group.
Improperly assembled
port cover assembly
spring.
Manual
Failure of
3.3.3.5
100%
77.
Rear Sight.
windage knob to rotate.
Knob shall be capable of
rotating seven (7) complete
revolutions moving rear
sight from extreme
left or extreme right.
(This examination may be
accomplished during the
prefunctional check in order
not to disrupt the optimum
sight setting obtained during
the targeting and accuracy
firing test.)
24
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