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|  MIL-G-45140B
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3.2.16 Gas regulator group. The gas regulator group shall be
securely locked to the gas cylinder body. When gas regulation is re-
quired it shall be possible to move the gas regulator when the locking
nut is loosened. The gas regulator screw must be capable of being
bottomed (the underside of the screw head bottomed on the lock nut and
the lock nut in turn bottomed on the gas regulator bushing). After gas
regulation is made, the locking nut shall securely lock the gas regulator
in the position set.
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3.2.17 Guide rods and springs. The guide rod pin and cap shall
be securely brazed to the guide rod. The guide rod ends shall be
driving springs in the slide and shall lock in the buffer assembly
slots. The driving springs shall be straight and free of kinks and
perform their recoil and counterrecoil fictions.
3.2.18 Magazine assembly and magazine catches. The magazine follower
shall function through its full range of travel under spring action with-
out binding. The magazine shall readily assemble to the gun when the
rear magazine catch is pressed forward. When the rear magazine catch is
released, the magazine shall be securely retained by the rear and front
magazine catches under spring action.
3.2.19 Mounting keys. The mounting keys shall be securely staked
on the barrel and shall be oriented with respect to the barrel draw line.
3.2.20 Operating rod assembly. The operating rod assembly shall
function without binding throughout its full range of travel on its
spring stop.
3.2.21 Operating rod spring stop. The operating rod spring stop
shall be securely staked on the barrel and shall be oriented with re-
spect to the barrel draw line.
3.2.22 Receiver. The receiver shall be free of cracks and all
functioning surfaces shall be free of burs and sharp edges.
3.2.23 Safeties. The manual safety shall move readily from one
position to the other, and shall hold securely in position when set.
With the manual safety in the "safe" position, the hammer shall not re-
lease when the firing rod pulled. With the manual safety in the
"fire" position, the hammer shall release when the firing rod is pulled.
In addition, guns shall be capable of being set on "safe" and "fire"
positions by means of the solenoid safety. When the solenoid safety is
assembled to the gun, the manual safety shall be in the "fire" position
and it shall not be possible to move tha manual safety to the "safe"
position. With the solenoid safety in the "safe" position, the hammer
shall not release when the firing rod is pulled. With the solenoid
safety in the "fire" position, the hammer shall release when the firing
rod is pulled.
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