[LtCol Henderson Marriott]

This did work, in a sense-for me. BUT, when the forend assy is placed on the
barrels and latched, it will not allow the barrels and forend to reassemble to the
rest of stock action. The end of the forend is in the way. Take the forend off, rejoin the
barrels to the action, extractors closed in as described. Then, when the barrels are almost
closed completely-attach the forend and latch. "Seems to work in most cases". Indeed.
But not easily.
This Parker is a 1920s VHE 2 7/8(3 in) inch chambers. Stiff and about 95% condition.

Parker forends are like LC Smith forends. Take them off when you must- but not too often. Cock the hammers first.
Fox forends work easier and are tough-IMHO-Thanks Dennis! (I like to resurrect old dead threads and old or ancient shotguns!)