SUB Stock Extension | Kel-Tec
SUB-300Z: Stock Extension for SUB-2000. If you feel that the stock just isn't long enough to fire your SUB-2000 comfortably, then the stock extension might be worth checking out. - See more at: http://www.keltecweapons.com/sub-2000/sub-2000-accessories/stock-extension/#sthash.4rD4MMj3.dpuf