I had concerns about the GSG because of it's all Zinc Alloy construction, same with the Sig and Colt, althought the Colt is made by Walther and not GSG. I opted to go with the Browning 1911 .22 A1 because it is made of T6 7075 aircraft grade aluminum. I also like the feel of it. I had a Mosquito as well as a P22 and sold them both for the Browning. The Browning costs almost twice as much as the GSG, but I'll bet it lasts a life time. Plus, it breaks down EXACTLY like a standard 1911. Great training weapon for 1911 newbies.