FCW +5 magazine extension for the Ruger American 9mm pistol. $42.99 ea
Machined aluminium, stainless steel set screw and chrome silicon magazine spring.
FCW carbon fiber mag tube extensions for the Tristar Viper G2 series shotguns. Super light weight and 1.5 times stiffer then aluminium. Tightens with the AR15 M4 castle nut wrench. For 12ga. models only. Capacity from +3 to +9.