FYI...I fit a set of O/U bbls to my Citori more because I was told it was too risky when buying used barrels as opposed to buying them "in the white" from Browning. That's bunk. They were loose on my receiver when I got them and I was able to fit them very well with a touch of weld in the right spot on the forearm locking lug. I lapped in the pivot area of the barrel lug and it was perfect. I would do it again in a heartbeat.