One piece for self defense carry (if you CHOOSE to have a FLGR in your carry gun). You don't want it coming unscrewed when it counts (even though it is a rare event).
Two piece with comp guns or reverse plug guns (game guns) that don't let the FLGR out of the slide in the normal manner. As a general rule, two piece only when necessary.
If your response doesn't pertain to the difference BETWEEN 1 PIECE AND 2 PIECE FLGRs, as in "aint no use for a FLGR", then please save for THAT discussion.
Two piece with comp guns or reverse plug guns (game guns) that don't let the FLGR out of the slide in the normal manner. As a general rule, two piece only when necessary.
If your response doesn't pertain to the difference BETWEEN 1 PIECE AND 2 PIECE FLGRs, as in "aint no use for a FLGR", then please save for THAT discussion.