Does anyone know the weight and length of pull of this gun? Catalog doesn’t say. Thank you.

By searching the web through various sites I come up with a LOP of 14" and a weight of 5.75 lbs.

Those figures are based on information put forth by people/stores? selling them.

All the Remington buttstocks on 870's are essentially the same except for specialized models like the Trap guns. Your best bet is to go into your LGS and heft/shoulder one. They do make some youth models also if you need the shorter LOP.