Remington 870 vent rib bead site 20" barrel.
Marked "Use 2 3/4 or 3" shells in magnum receivers, 2 3/4 in all others".
It has a Remchoke system and comes with a modified choke. Sorry but do not have a wrench right now. Bought it for my brother who insists one cannot shoot turkey with a 20" barrel.
Slightly used, many miles left - SOLD PENDING FUNDS insured shipped legal lower 48 states. Money order or PayPal balance transfer if shipped.