I would be surprised if it were pinned. I just wouldn't see a need or reason for it to be done on a 10.5" barrel.
But, Bert is definitely the guy if it is.
[Beer]
Printable View
Cursory inspection didn't reveal a pin but I only took a quick look at it the other day. Sunday I'll dig deeper, if I need to make a call to Bert Monday we will have our answer.
I have a SawZall.......
ps you're welcome to come to Idaho Springs and use my bev block. I too doubt a 10.5 is pinned...unless it has a 5.5" muzzle device.[ROFL2]