I took apart my new Stoeger Uplander SxS combo [12/20] to clean it and I cannot get it back together. I am thinking it is because the firing pins are in fired position. The barrels fit in locked position, but cannot get forearm on. Any suggestions?
Remove the barrels, the two fingers you see protruding from the front of the receiver are the cocking arms...You can take a screw driver and put across the two of them and depress down, they will both give an audible "click" indicating you were successful! Second method is to invert the receiver over a hard flat surface and depress the cocking levers...(Don't use the wife's kitchen table)