Yeah, just the one in the back and occasionally the front pin if you want to completely break it down into a compact size. Invest in aerosol cleaner and an old toothbrush for cleaning the hard to reach places. Cleaning the bolt was the biggest PITA problem I had with mine. Lube it up heavy, and clean in as soon as you can after shooting. Once it dries out, it seems like you do more chiseling than cleaning deposits off it.
Aerosol cleaners work great. Just lube that sucker up good after. They dry the holy hell out of it.