Originally Posted by
Dennis
Use a punch much wider than the pin to help get it started. You can Dremel a concave shape in the middle of the punch to keep it on the head of the pin. You can also rough the end of the pin a bit to help keep the punch from slipping if you are desperate.
Good luck!
Dennis.
This. There's no need to ever sacrifice a punch to a FSB taper pin. The easiest way I have found to break loose a stubborn pin is to use a BIG taper punch, way bigger than you think you need and preferably 8-10" long because that makes it easy to hold. Brace the barrel/gas block up on a solid surface, use the big taper punch and a big ball peen hammer (I use a 16 oz.). I've never come across a taper pin I couldn't break loose with just a couple whacks using this method. Once it's broken loose then use a smaller hammer and punch to push it the rest of the way out.
A stuck gas tube can be a little more problematic. I've had good luck using the vice grip method mentioned above. Also you mentioned using Kroil on it. You may need to let the Kroil sit on it for several hours, or even a day or two to work.
Steve
Disclaimer: I am employed by Shadow Systems. My posts on this site are my own and do not necessarily reflect the views of my employer.
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