PS Magazine - TB 43-PS-606

PS, The Preventative Maintenance Monthly

ISSUE 606

MAY 2003
PS Magazine - TB 43-PS-606 - Page 14 of 32
You, Armorers
PS 606
MAY 03
24
•
You need the front sight adjustment
tool, NSN 5120-01-141-3839. Without the
tool, you'll have trouble adjusting the
sight and could even damage it. The tool
costs only a little more than $6, so order an
extra one. The tool often disappears.
•
If your unit is going to do much fir-
ing, make sure the spare barrels head-
spaced for your M249s leave the arms
room with the M249s. The barrel is
supposed to be changed every 200
rounds during both sustained and
rapid fire. If it's not, heat can warp the
barrel. Make sure your unit knows
those firing limits. Most spare barrels
never make it out of the arms room.
Listen up, armorers.
Here are a few
things you need to
remember about your
M249 machine guns…
•
The NSN for the blank firing attach-
ment has changed to NSN 1005-21-912-
8997. If you order the NSN listed in TM 9-
1005-201-10 (July 1991) the order will be
kicked back.
•
Tug on the slings to make sure they hold. Some-
times the metal rings on the gun wear out and the
sling comes loose. That can lead to a damaging fall.
•
Don't pull the firing pin spring
off. That stretches the spring and
ruins it. Use a small screwdriver
or pen to push the spring off.
•
Check the safeties on your M249s by locking
the bolt to the rear, pushing the safety to SAFE
and pulling the trigger. The bolt should not
move. Safeties wear out just like the other
parts on the M249. If the safety doesn't work,
the gun can fire accidentally and you're left
explaining why to the next-of-kin.
I hope you
saw what I
mean about
your saw!
Get front sight
adjustment tool
BFA comes with
Set safety to SAFE
and pull trigger
Use pen to push off
firing pin spring
Tug on
sling
hey!
don’t
forget me!
You may need
me if you do
much firing!
turn
up the
volume!
Talking to
M249 Machine Gun…
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