That's a bummer !! Dirt and powder residue will get into the action, how do they expect you to clean it ??[spraying lube into the gun does not remove dirt.] I usually find a way to take guns apart but that depends on your knowledge. Most pumps and autos can easily be taken apart by taking out the pins in the receiver .Then the trigger group and bolt can be removed easily and everything cleaned. You might try www.brownells.com they have some disassembly books .....Cd are available - www.emilitarymanuals.com ...an exploaded view is on - www.stevespages.com/pdf/browning_bps122028.pdf ...From the exploded view the two pins on the receiver should be holding on to the receiver parts .From some comments i've seen it may not be easy !! This gun is made like the Ithaca 37.