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.
FAB Defense KPOS G2 Pathfinder
Though largely forgotten and scarce today, the Colt 1871-72 "Open Top" revolvers represented an evolution in design for Colt, and ultimately paved the way for the Colt to transition from the cap-and-ball era to the cartridge era of the Single Action Army.