PS Magazine - TB 43-PS-706

PS, The Preventative Maintenance Monthly

ISSUE 706

SEPTEMBER 2011
PS Magazine - TB 43-PS-706 - Page 20 of 33
36
PS 706
SEP 11
37
PS 706
SEP 11
Staying Out of a Jam
If you use the cartridge catch bag, empty it periodically during Fring. If the bag
becomes too full, your MK 19 could have trouble ejecting rounds. That could lead to
stuck rounds and jamming.
•
Lightly pull the quick-release pin to make sure it’s secure
in the universal pintle adapter. If the pin comes out, it’s
not secure. The
pin can work out during firing, letting
the mount come loose. Your armorer can order a new pin
•
Before firing, make sure the manual control handle that
secures the mount cradle to the universal pintle adapter
is actually locked. Sometimes it doesn’t stay locked and
the cradle works loose during firing. If it’s not locked, tell
your armorer. He needs to replace the handle.
Dear Editor,
In PS 700 (Mar 11), you recommended Soldiers check the barrel on
their M16 or M4 for looseness by trying to turn the barrel. If there is any
movement, you should tell your maintenance personnel because a loose barrel
kills accuracy.
But unfortunately you show the Soldier holding the lower receiver while
twisting the barrel. There is almost always a little movement between the
lower receiver and the upper receiver that the barrel is attached to. That’s
normal and doesn’t affect the weapon.
Soldiers should
separate the upper and
lower receivers and hold
the bottom of the upper
receiver while twisting
the barrel.
Grip the barrel
around the front sight
assembly for better
leverage, but make sure
if there is any movement
it’s the barrel and not
the sight that’s moving.
See WP 0008-9 in
TM 9-1005-319-
23&P for more info.
James Garner
TACOM logistics assistance representative
Ft Benning, GA
Editor’s note:
Your
point hits the bullseye!
Thanks, Mr. Garner.
Safety Proofing Your Mount
MK 19
Machine
Gun…
Safety Proofing Your Mount
M16-Series Rifle,
M4/M4A1 Carbine…
A
Truer
Barrel CheCk
having the mk 19
machine gun come
off the mount during
firing is a gunner’s
worst nightmare.
here’s the
correct
way
to check for a
loose barrel on
your m16 or m4!
one unit
actually had that
nightmare happen,
but fortunately
there were no
casualties.
here’s how to
safety proof
your mount so
that
doesn’t
happen to
you…
Check quick-release pin for damage
Hold bottom of upper receiver with one hand
and hold barrel around front sight with the other
Twist barrel to see if it’s loose
Check that handle locks
706 36-37.indd
1-2
8/1/11
10:49 AM
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