PS Magazine - TB 43-PS-681

PS, The Preventative Maintenance Monthly

ISSUE 681

AUGUST 2009
PS Magazine - TB 43-PS-681 - Page 13 of 33
22
PS 681
AUG 09
23
PS 681
AUG 09
Dear Corporal J.S.,
The enhanced sliding buttstock was originally part
of the Rapid Fielding Initiative, but now has been
classi±ed as AAL in WP 0031-1 in the latest edition
of TM 9-1005-319-23&P. Order this buttstock with
This buttstock has a sloping
cheek weld that gives a better
sight picture, too.
Dear Editor,
Both the M2 machine gun and the
Avenger’s M3P machine gun have
headspace and timing gages. In some
instances, the two gages have been mixed
up and Soldiers have tried to time and
headspace an M2 with the M3P gages or
visa versa. Plus it can be difficult to ID
the gages to make sure they receive their
yearly calibrations at TMDE.
We made gage ID easy with an ID tag,
NSN 5810-01-393-2942. You can label
the gages M2 or M3P on the tag, plus
TMDE can paste a bar code on the tag to
help track calibration. The tag costs less
than $3.
SGT Robert Dowling
3-4 ADA
Ft Bragg, NC
Dear Half-Mast,
We’ve heard there’s
a new M4 carbine
buttstock available
that has a rubber
recoil pad and holds a
battery. How can we
order one?
CPL J.S.
Editor’s note:
We gage your
suggestion to be a good one.
Thanks.
M240B Machine Gun.
..
Don’t Forget
the Loctite
M2, M3P Machine Guns…
Tag ID for Headspace Gages
Hey!
my rail
kit screws are
working loose!
M4/M4A1
Carbine…
New
Buttstock Available
I have a new
buttstock that
you can order.
Dear Editor,
In PS 671, you gave
instructions on Page 21 for
installing the rail kit. But I think
you left out an important step:
Before installing the two long
screws, you should first clean
off any grease on the screws
and then apply a drop of Loctite
246, NSN 8030-01-499-
3589, on their threads. That will
help the screws stay tight.
Gary Becker
Weapons Inspector
Ft Leonard Wood, MO
Editor’s note:
Good point,
Sir
. For
those that missed the article, here’s
the scoop:
Over-tightening the rail kit screws
can cause the op rod to bind in the
gas tube. After you clean the screws
and put Loctite on their threads,
install them and tighten them with
your ±ngers. Then use a
5
/
32
-in hex
wrench to tighten the front screw
no more than three complete turns.
Tighten the rear screw
1
/
4
turn.
Tag helps you ID gages
you shoulda put
some
loctite
on ‘em!
Don’t overtighten!
good
news!
Function test the weapon. If the op rod binds, back off
both screws
1
/
4
turn. Function test again and continue to
back off the screws
1
/
4
turn until the op rod moves freely.
681.22-23.indd
1-2
7/7/09
3:06:02 PM
SGT R.D.
Mr. G.B.
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