truth_seeker
New member
Does anyone know if there is a site that tells you the original caliber first introduced when the firearm first came out. Besides Wikipedia because it doesn't always have all the information you need. When I mean original caliber I mean like when the USP came out in .40, or even other information like how the early USP 40s had standard rifling, or how the Walther P99's first generation line had the ski hump inside the trigger guard. By the way, is the magazine release a lever or a button like the USP series? Thanks.