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4 . 5 . 9 . 2 . 1 Stock assembly.  Visually examine the stock to assure
freedom from mutilations and wood defects (see Examine access
to the accessory storage holes in the stock, with the butt plate assembled,
using inspection equipment in accordance with Drawing B7271641 (see
4 . 5 . 9 . 2 . 2 Operating rod spring and spring guide.  Visually examine
the spring to assure freedom from damage and cracked or broken ends, and
the spring guide for damage and burs.  Examine for the proper seating of
t h e operating rod spring on the spring guide (see 3.2.14).
4 . 5 . 9 . 2 . 3 Connector assembly.  Visually and manually examine the
c o n n e c t o r assembly for proper operation (see 3.2.6). Examine the con-
nector assembly for damaged parts.  Disassemble the operating rod from
the receiver and examine for proper assembly, broken parts, and surface
d e f e c t s in the bolt roller cam surfaces and the receiver way lugs.
4 . 5 . 9 . 2 . 4 Bolt assembly.  Visually and manually examine the bolt
Disassemble the bolt assembly
a s s e m b l y for proper operation (see 3.2.4).
from the receiver and visually examine for damage and surface defects
and deformations on the bolt lugs.  E x a m i n e firing pin protrusion and
intrusion using inspection equipment in accordance with Drawing D7796327
(see Drawing C7790187).
V i s u a l l y arid manually examine the firing
operation  s e e, damage, surface defects, scoring
p i n for proper
Visually  examine
caused by burs
in the bolt, and mutilations on the point.
the ejector and
extractor lip for damage and surface defects.
4 . 5 . 9 . 2 . 6 Bolt and roller assembly.  Visually and manually examine
t h e bolt and roller assembly for proper operation (see, damage
a n d surface defects.  V i s u a l l y examine for proof and magnetic particle
inspection marking (see 3.4 and Drawing J7790476).
4 . 5 . 9 . 2 . 7 Barrel and receiver assembly.  V i s u a l l y examine the re-
c e i v e r assembly for proof and magnetic particle inspection marks, "N.M."
marking on receiver," and that windage graduations are clear and legible
(see, 3.4 and Drawings F7790189 and J7790476).
4 . 5 . 9 . 2 . 8 F r o n t s i g h t .  M a n u a l l y inspect front sight for lateral
a d j u s t m e n t and security of fit (see Visually examine to
assure there is no overhang on the tenon of the flash suppressor.  V i s -
ually examine the sight wings for proper profile and damage or improper
surface finish.
4 . 5 . 9 . 2 . 9  Rear sight assembly.  Visually and manually examine the
r e a r s i g h t f o r p r o p e r operation, proper profile, backlash, any damage,
p r o p e r surface f i n i s h and excess oil (see

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