Martin
You need to put a link to the OSR site on your home page..
What mag does the OSR use?
www.larueosr.com
Have you tried other cans? Is it common for a can to glow??
I can remember we use to have "mad-minutes" every nite on the FB just to keep the NVA on their toes. I carried am XM177 and the barrel would
glow after 5-8 magazines.. By the time I was evac'd it was a smooth bore,, but I never had an FTF .
Tx