For myself I bought the Remington 870 Express Youth. It comes with a 21" full length vent rib barrel and takes the "Rem" Choke system and is supplied with a modified choke. There are several sets of sights available that mount easily on the vent rib.The stock on mine is a wood laminate with an inch shorter LOP than standard. The only thing I have done to the gun was add a improved cylinder choke tube and a XS Sights white bead with tritium tube insert. Doing walk thru's in the house it is small enough to handle good plus still works good on the range and in the field. It's paper plate accurate with most 3/4oz. rifled slugs out to 40yds. The SX Sights bead just epoxies over the OEM bead.