PS Magazine - TB 43-PS-573

PS, The Preventative Maintenance Monthly

ISSUE 573

AUGUST 2000
PS Magazine - TB 43-PS-573 - Page 31 of 43
Look for cracks and chips in the
buttstock. Any cracks starting from the
front of the buttstock or chipped-away
areas anywhere on the buttstock mean
you need a new buttstock. Cracks else-
where may not mean your buttstock is
shot, but your armorer needs to check
them.
Armorers
Buttstocks are OK with up to three
hairline cracks on each side:
if they start from the buttplate end,
if none of the cracks are longer than
1 inch,
and if two out of three cracks are no
longer than
1
/
4 inch each.
PS 573
45
PS 573
44
AUG 00
M16-Series Rifles . . .
movement, tell your armorer. He can
tighten the buttstock screws. If that
doesn’t work, the lower receiver ex-
tension probably needs to be tightened
by support.
When you’re cleaning your rifle,
run a pipe cleaner through the buttstock
drain hole to clear it. If the hole
plugs up, moisture can collect in the
buttstock and corrode the lower re-
ceiver extension.
Clear drain hole
Twist gently to check for looseness
would you
take a look at
this
? my buttstock
is in
terrible
shape
!
but.
..
but.
..
but.
..
➥
➥
➥
there are
no buts
in
buttstock
pm!
n M16-series rifle buttstock that’s
in poor shape can make for poor firing
or even no firing if it works loose.
Keeping buttstocks in fighting shape
takes teamwork by both gunners and
armorers.
Gunners
Gunners, as part of your before-
operation PMCS, gently twist the
buttstock clockwise. There should be
almost no movement. If there is much
Two
cracks up
to
1
/4 inch
long per
buttstock
side.
..
Cracks
anywhere
but at
buttplate
end or chips
means
buttstock
is shot
...and one
hairline
crack no
longer than
1 inch per
buttstock
side are OK
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