http://members.aye.net/~bspen/percterm.html





that web site and these pictures should help a lot. After sitting for that length of time I would guess that the back side of the lock is all full of dust, crud, oil oil, and who knows what.

Take the screw out of the side of the stock opposite of the lock and then you can wiggle a gently pry if necessary and take the lock out. I like to put the whole thing is hot soap and water and with a tooth brush scrub the devil out of all the parts.

If the back of the lock is full of crud, get a coffee can and put some good solvent in the can and with a tooth brush type brush again, scrub the back side of the lock off.

Then spray it with a mist of isopropyl alcohol or WD-40 and take an air compressor and plow all the lock dry and as clean as possible. Take patches and wipe clean any parts you can get too. Q-tips will also help here.

Now take a oil like sprayRem Oil with teflon and give all the moving parts a light coat of spray. And wipe out the stock, etc. You might have to clean the trigger assembly also.

If you put it back together it should work. I am sure some parts are so gunked up that they are not staying in place. If that does not work send the lock to Thompson Center Arms. Call them first and talk to them.

Roundball will see this and can tell you how to break the thing down to the screws I am sure..