two
Two for the Garands. One was a gift, a 10" version that appears arsenal original and is unsharpened. The other is a a shorter 6" model that may well be Korean, the blade is sharp, but not nearly as stout as the bigger model.
The short model may have US hardware, but the blade is unstamped.
I ran a 3 gun course of fire with the Garand and the short bayonet attached,and having dropped an enbloc, was short of ammo for the last target. So of course I stuck it, much to the RO's dismay, but the relay loved it. Somebody videoed the episode and it was viewed quite a bit. I'd meet folks at the range, and they'd say ".....You're the guy with the bayonet!"
I suppose there's worse ways to be known.