PS Magazine - TB 43-PS-693
PS, The Preventative Maintenance Monthly
ISSUE 693
AUGUST 2010
20
PS 693
AUG 10
S
ome riflemen have tried to improve the accuracy of their M16 rifle or M4 carbine by
adding a small plastic buffer inside the lower receiver.
That’s hardly accurate help. When you close the upper and lower receivers with the
added buffer, the pivot pin gets broken. Then the weapon won’t align right and you must
get the pivot pin replaced.
The only help your M16 or M4 needs from you is to faithfully do the PMCS in TM 9-1005-
319-10. Accuracy comes from practice.
D
epending on the age of your M2 machine gun, its serial number may be on
the top or the side of the weapon. That has caused confusion about which is the
serial number.
It’s important to use the correct serial number since that’s how you track the M2 in
the property book.
Some units have mixed up the serial number with the part number. To avoid that
mistake, just remember that the serial number stands alone, but the part number has
“P/N” in front of it.
Dear Editor,
I recently was in an arms room where I noticed that several of the M9
pistols stored in the M14 racks were missing their barrel guides. Although
the missing guides don’t affect the storage security of the pistols, they
do affect the safety of the M9s. The guides are the last check for barrel
obstructions or ammo present in the M9.
So I recommend all commanders have their arms rooms inspected for
missing M9 barrel guides. They can order replacements with NSN 1005-
01-259-2897.
Terry Blount
TACOM LCMC
Vicenza, Italy
Editor’s note:
We’ll let your
suggestion be
a guide for
commanders.
Thanks, Terry.
Dear Half-Mast,
Is there a blank firing attachment
(BFA) for the M14 rifle?
MAJ R.S.
Dear Major R.S.,
Indeed there is. The M14 BFA and
breech shield come with NSN 1005-00-
893-0902.
Look for
Barrel
Guide
M2 Machine Gun…
Spotting
Serial
Numbers
M14 Rifle…
Is There a BFA?
M16-Series Rifle, M4/M4A1 Carbine…
No Buffer
Help Needed
Serial number stands alone
Part number has P/N in front of it
I thought
your serial
number was
on top?
not anymore.
they’ve moved
it to the side!
hey, I’ve got some-
thing to improve
your accuracy!
keep that
away from
me! that
thing will
break
my
pivot pin!
M9 Pistol…
Look for
Barrel
Guide
For safety, all
your m9 pistols
should be stored
with the barrel
guide.
so make sure
the guides
are there and
replace missing
guides.
Blank Fring
attachment
Use guide in
weapon…
…before
storing
693.20-21.indd
1-2
7/2/10
5:27:49 PM
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