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|  MIL-G-45140B
4.5.2.2.10.1 Barrel assembly.
a. Visually examine barrel assembly to assure freedom from
foreign matter, corrosion, pits, burs, deformations and
bulges (see 3.2.1).
b. Visually and manually examine mounting keys and operating
rod spring stop to determine compliance with 3.2.19 and
3.2.21.
4.5.2.2.10.2 Receiver assembly.
a. Visually examine receiver assembly to determine compliance
with 3.2.22.
b. Visually and manually examine secureness of bolt lock and
ejector to determine compliance with 3.2.5 and 3.2.9.
4.5.2.2.10.3 Gas cylinder group (see 3.2.14, 3.2.15 and 3.2.16).
a. Disassemble gas regulator assembly from gas cylinder body
by loosening lock ring and removing regulator bushing
assembly without disturbing setting.
b. Visually examine tip of gas regulator to assure freedom
from burs and deformations.
c. Remove gas cylinder and visually examine internal and
external walls to assure freedom from scratches, defor-
mations, burs and powder fouling.
4.5.2.2.10.4 Operating rod assembly.
a. Slide operating rod assembly forward and check piston to
assure freedom from scoring, burs and powder fouling.
b. Reassemble gas cylinder and gas regulator assembly and
manually examine operating rod assembly to determine com-
pliance with 3.2.20.
*
4.5.2.2.11 Gun assembly.
Reassemble gun, insuring the positive retention of all
a.
parts and hand operate to assure proper function.
Visually examine for presence of proof mark on receiver
b.
and for presence of magnetic particle inspection marks on
barrel.
Examine breeching space using gage in accordance with
c.
Drawing F7319998.
Visually and manually examine function of safeties as
d.
specified in 4.5.2.2.1.
Visually examine to assure presence of housing retaining
e.
pin in receiver assembly.
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