Assuming they’re unmodified:
#1 is either a 3rd or 4th gen; if metal barrel then 4th, I’m guessing 4th based on the locknut (but that’s not definitive)
E2A: circular button = gen 3&4
#2 is 2nd gen, based on the knob (which indicates no seatsaver bal chamber)
#1 is either a 3rd or 4th gen; if metal barrel then 4th, I’m guessing 4th based on the locknut (but that’s not definitive)
E2A: circular button = gen 3&4
#2 is 2nd gen, based on the knob (which indicates no seatsaver bal chamber)