I cannot unscrew a rifle length buffer tube from the receiver. I tried Kroll, acetone and boiling water. I have removed the spring and buffer, there is nothing visible holding the tube in place. Any suggestion on other options? Thanks.
Is there any chance it was installed with something like red loctite?
Well, you might need a strap wrench and a heat gun if they lock-tite’d that buffer tube in there.
Edit to add;
Make sure you get the heat where the possible lock-tite would be as in where the buffer tube is in relation to the Upper.
I’ve seen every kind of Bolt Extraction possible, I saw an old man drip candle wax on a rusted stuck bolt on an engine block, wait five minutes twist it with a wrench and it came right out
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Certain models had some sort of mechanical lock up on the rifle RE. Mabye Colt at one point? Man! It’s been years since we talked about guns on this forum. I’ve forgotten so much.
If you shined a light down the tube is there an indent or something?
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Yes, some older Colts were pinned, could be others.
I’m reminded of this fuckery back on BARF many years ago.
I was thinking it lasted awhile also, but if this is right the pinned receiver extension stopped fairly early.
Scroll down to see a close up that shows the pin.
They also show an early extension prior to the wrench flats at the rear of the tube.
Never seen a tool for those and i can’t recall if the hole was a single(if so it was a spanner) or thru.
Brownells retro models had the pin(or maybe cosmetic/nonfunctioning) and seems like Nodak did too.
I was going to say i dont think the pin would be visible inside the tube or it would snag the parts while cycling, but there’s not a lot of meat there if the R/E got drilled with the lower.
Prior to as much online info a buddy used loctite on a carbine stock locker instead of staking and it was a pain to break loose. Fortunately he didn’t do the R/E to lower connection.