When we first launched the original Timberwolf frame, one of the first questions was “when will it be available in 9mm, .40 S&W, and .357SIG?” That time is now, because we’ve revamped and upgraded the design to bring you the Timberwolf Full Size. The first thing you’ll notice is that the TWF fits in your hand like a much smaller pistol. The TWF-C and TWF-F accept Gen3 and Gen4 G17,17L,22,24,31,34,35, and 37 slides.