188.8.131.52.13 Receiver assembly group
Visually and manually examine receiver assembly group for
compliance with 3.3.13.
Visually and manually examine cocking handle guide, screw
and lock washer for. compliance with 3.3.9.
Manually examine retention and free movement of cocking
handle assembly for compliance with 3.3.9.
Visually and manually examine spring action of retaining
latch on cocking handle assembly for compliance with
Examine carrying handle assembly for compliance with
Visually and manually examine barrel lock for compliance
Visually and manually examine rear sight assembly for
compliance with 3.3.2.
Manually examine dust seal sleeve for compliance with
184.108.40.206.14 Headspace. Prior to reassembly of machine gun,
check for headspace requirement (see 3.4.1) using the methods
specified in 4.5.1.
Reassemble the machine gun examining to assure that the
barrel assembly with biped assembly, the buffer assembly,
the sear and safety housing assembly, and the spade grip
back plate assembly assemble to the machine gun without
the use of tools.
While reassembling the barrel assembly with biped
assembly to receiver assembly, examine to assure that
when barrel lock lever is latched in the closed position,
the barrel is retained in the receiver (see 3.3.3) .
While reassembling the spade grip back plate assembly,
examine to assure that the knob lock pin engages in the
knob and pin assembly securely retaining the knob and pin
assembly in the tightened position (see 220.127.116.11).