PS Magazine - TB 43-PS-585
PS, The Preventative Maintenance Monthly
ISSUE 585
AUGUST 2001
PS 585
AUG 01
51
IT’S NO
USE, DOC.
I CAN’T SEE
A THing.
This is
terrible!
No one has
done pm!
So always remember
the front and rear
sights when you
clean your rifle.
Use a toothbrush to
clean away dirt from
both sights. Get into
all the crevices.
Work the detent
up and down
until it moves
smoothly.
Depress the front
sight detent and
give it a couple
of drops of CLP.
Remove the
charging handle
and turn the
upper receiver
upside down.
Put a few drops of lube on the bottom of the elevation
screw shaft and in the detent spring hole.
If the sights are still difficult to adjust,
they need to be taken apart and cleaned.
Your armorer can handle the
front sight. The rear sight goes
to direct support. If you force
the sights, they will be damaged.
It’s very important to wipe off both
sights when you’re finished.
Otherwise, lube will attract dirt and your
sight will be in worse shape than before.
With the receiver still upside down, move
the elevation knob back and forth several
times to work in the lube. Then return
the elevation knob to its original position.
Dirt and
corrosion
can make it
impossible to
adjust the
sight on your
M16 rifle or
M4 carbine.
Then your chance
of hitting the target
becomes about the
same as winning
the lottery.
M16-Series Rifle, M4/M4A1 Carbine.
..
Squirt a couple of drops of CLP on
all of the rear sight’s moving parts.
Rotate the windage knob
five clicks and the elevation
knobs completely around
to work all the lube in.
Return the windage knob
to its original position.
Tell your armorer if the front sight
guards are bent. Support has a tool
that can straighten the guards.
585. 50-51 (C)
6/28/01
4:04 PM
Page 1
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