Thought it's probably yhm, then i did a little searching. Turns out its Olympic arms.
Glad to help!
Great thanks for the info.
I was just curious. The barrel came in a upper I bought over ten years ago and has been in that upper until I took it out a few days ago. It's a very good barrel, very accurate. Just wondering the manufacturer.
Barrels are the only thing I would buy from Olympic.
advntrjnky
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