The Umarex Glock 18c is the long-awaited, fully licensed auto pistol many users have been waiting for. The pistol features a 50th magazine which is compatible with other Umarex Glock pistols. This particular Glock 18 uses the same recoil spring system found in the Glock 17 Gen 4 pistol offering added durability and stability when shooting full auto. The dual recoil system makes this gun handle recoil extremely well and allows for added accuracy.