Fiddling with the M37 that I picked up today (old PD beater with the slam-fire trigger
) I find that moving the carrier arms up/down wiggles that screw a bit; my guess is it is the pivot for the shell carrier.
That shotgun you have is, according to Wikipedia, single-handedly responsible for the M37's fall from preeminence in America.
Quote:
Interestingly, Ithaca's loss of market share was hastened by competition from a copy of the shotgun. Chinese copies of the Ithaca 37 have been imported recently
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So, it's all your fault
TCB