I ran a ff3 on a 5" 1911 .460 Rowland for awhile. Had to send it back, because it started coming apart. They sent a new one, no questions asked. But I never used the new one, it went to my son in a trade. But Im sure that failure was a fluke. It was a very handy sight. I would probably get another one, if the need arises.

If it were supposed to be easy, they'd have sent my little sister to do it.