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The first thing you want to do is completely
unload and field strip your rifle and remove the
cleaning rod. If you don't know how to do this
view the "Field Stripping" tutorial
on the menu to the right.
Now you must also remove the upper hand guard
from the rifle. If you don't know how to do this
view the first 3 steps of the Furniture Removal
Tutorial found on the menu to the right.
You will also need the following tools and parts:
Bare minimum:
A Pin Punch of some kind (an old drill bit that
is slightly smaller then the pins we are going
to tap out will work fine)
A Hammer
Some one or some thing to hold the rifle
A lubricant of some kind, CLP works well
A can of "Break Free" is optional, but
if a part is really hard to move this will help
A Drill
Recommended Extras:
A Vise
A Drill Press with a number of drill bits
A Dremel
Parts Needed:
1/8th diameter wooden/steel dowel rod (any length
over a foot will do fine, yes wood works fine
for the gas block, its ok to use steel also)
1/8th drill bit
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Now we are ready to begin. First view the bottom
portion of the Gas block; you should see two pins
as circled in the picture. If your pins cannot be
seen because they have been welded over you must
file or dremel the weld away. We need to knock these
out before we readjust the Gas block |
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Most
of the time these pins need to be knocked out left
to right as shown by the arrow in the picture. With
the right side being the ejection port side.
Take your pin punch and hammer and lay the rifle
down on its right side with left side facing up,
it's a good idea to get some one to hold the rifle,
or if you have a vise, rap a towel around the rifle
a secure it. Start taping on the pins with a little
force, not to much at first. Slowly increase how
hard you hit it until they start to come out. |
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If it doesn't budge at all I recommend covering
both pins and the Gas block in break free and
let it sit for a few hours. Knocking out the pins
is the hardest part, so it might take a little
while. If after both hammering away and soaking
in break free you still cannot get them to budge
try the follow.
1. Insert a steel rod into a drill press that
is the same diameter as the punch and press them
out.
2. Use a plumber's torch or a cigarette lighter
to heat the area and then knock them out.
3. As a last resort use a drill bit of the same
diameter and drill them out.
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With the pins out, wrap a towel around theGas
block and lightly tap the Gas block left and right
with a hammer until it breaks free and moves,
be careful, you don't want to bend it. If it doesn't
loosen up and break free do the following:
1. Soak the front sight Block in Break Free for
a few hours
2. Use a plumber's torch or a cigarette lighter
to heat the area then knock them out.
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When the Gas Block is loose enough to be moved
left or right set it to the position you want,
obviously if it is canted you want to set it straight.
When you have it where you want it, lay the rifle
on either side and get some one or some thing
to hold the Gas block exactly where you wanted
it.
Take your drill and install the 1/8th drill bit.
Drill out the two original holes to 1/8th.
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| Now take
your 1/8th diameter rodl and cut off two pieces
.50 inches in length. Put a tiny bit lubricant down
the re-drilled holes. Grab your hammer and lightly
tap the piece into the drilled holes. Once they
get close enough to the bottom of the rifle base
use your pin punch to finish the job. |
| And that's
it, Reassemble your rifle and your ready to go. |
