Up for sale is a 1960’s Polish parts kit. Wood looks good. Lower hand guard has a crack on it. Look like it's missing the rear sight. Does have a wood pistol grip you don't see those to often. This AK is definitely different then other AK's. The buttock on theses models have a little metal tabs side of the butt stock so you stick a rubber boot on it  is supposed to attach to so you don’t crack the butt stock when launching grenades. I added a picture with the boot on the butt back look at pictures. This variant was meant for a grenadier. This Kit comes  with all the cool accessories like the but stock boot and grenade launcher, Spicket, grenade launcher sites, all kinds of cool stuff. If you take a look at the pictures. You can see the gas tube has a shut off valve. That’s for turning the gas on when operating as infantry and then shutting the gas off for launching grenades. It’s a surplus kit there might be some parts missing not sure. The frist $600 in my hands takes them feel free to text me. I usually do not pick up my phone. I work during the night and I sleep during the day.