Wondering if Timney ever made a 870 ’Pull‘ trigger? I believe I have seen a 870 Timney release but never a pull unit.
When I started there weren't any adjustable anything. Maybe a couple layers of mole skin on the comb or a Morgan pad. Model 12's, 1100's and 870's were everywhere. But if you had Speed Lock in your 870 it was the "cats ass".
Timney told me during the real Grand once that when he first started going to the Grand that all the vendors stayed in the same tent. He was quite a guy.