Most pistol-to-carbine conversion kits are NFA restricted items requiring additional Federal paperwork and fees to own. This version of the Fab Defense KPOS system, the G2 Pathfinder, employs a folding AR-type buffer tube with no shoulder stock and a hand stop in place of a vertical grip, so no SBR tax stamp is required. Milled from a billet of 6061 T6 aluminum and treated with a hard-anodized finish, the Pathfinder chassis features an AR style charging handle, folding sights, and a removable flash hider. The system can be installed without any permanent modification to the pistol and it's available for several makes including Glocks, Sig Sauer, and Springfield XD models.