KelTec CP33 +17 magazine extension kit, complete with extension body, retention tab, spring, and extended guide rod. This is how they come when purchased new: use your existing CP33 magazine’s follower, base plate tab, and floor plate. The last two photos are for reference, only the extension kit is for sale. Helps making your CP33 look the part of an “MP7 at home.” Comes in great used condition from a smoke-free home. Local Idaho Falls area meetup only.