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marksman8351
May 20, 2011, 04:56 PM
a friend of mine bought an ar15 a few years ago and im pretty sure he never cleaned it well enought besides a basic cleaning. he shot a ton of 22 thru it with a conversion kit and lately the gun has been short strioking and he cant get it cycle just fire. i looked into the gas tube and i it was completely crudded up and took some picking to clean it up we tried to fire it again with a new gas tube as well as the claned old one and nothing worked still the same i looked into the gas port hole in the barrel and it looks as if it is completely crudded up so im guessing that no gas can pass thru is there any wayt to clean this safely other than just replacing the barrel the barrel that would just seem like a waste of money

fatboy914
May 20, 2011, 05:10 PM
yeah help me

m.p.driver
May 20, 2011, 05:38 PM
Drift the pins out of the front sight base and slide the base off.Clean the port good with the right size drill bit,by hand ,you're removing lead and carbon not barrel.Do the same with the sight base and slide back on.Get you a good lead removing solvent and clean all lead out of the barrel.

marksman8351
May 20, 2011, 06:12 PM
Im having an impossible time trying to get the sight off my gun the pins wont budge any recokmendations?

travywestside
May 20, 2011, 06:25 PM
the pins are larger on one side than the other, so first you have to make sure you're pounding on the correct side, or they wont come out. I found that it works best if you lay the area with the front sight/gas block on a block of wood, have a buddy hold the barrel and pound the crap out of it.

marksman8351
May 20, 2011, 06:53 PM
ill try it

marksman8351
May 20, 2011, 11:15 PM
Still wont budge any suggestions

Dfariswheel
May 21, 2011, 06:14 PM
Get the barrel and sight in a well braced no bounce-no move set up.
If the barrel moves or bounces when struck, the force is dissipated and the pins will deform instead of move, locking them even tighter.

Make a "starter punch" from a standard punch by cutting it off to about a 1/2" working length. This prevents the punch from flexing or bending and again, dissipating the force.

Drive the pins from the left side of the rifle, as you'd sight down the barrel.
It helps if you can use a smaller dead-blow hammer since it too directs all the force to the pin.

HiBC
May 22, 2011, 04:43 AM
In general I do not shoot lead bullets through anything with a gas port.

marksman8351
May 22, 2011, 06:25 PM
neither do i however some people just need to live and learn :) a little more money now saves a headache in the future :)