I recently purchased a used BRNO model 611 that did not have any sort of manual with it. Although it is a quick take down model, I have been unable to get the 'finger catch' out of the bolt/slide to complete the action disassembly. The gun shop owner I purchased from accomplished this as I watched before purchase, but was unable to repeat said task upon my ownership of this fine weapon. Any help would really be appreciated. This is a great addition to my collection and is in need of attention.