The magazine seems to have been rendered inoperable intentionally for one reason or another. The blue 'could' be original, but the photo is not good enough to judge that. The pistol looks awfully dark and the edges of the receiver near the chamber look like they saw some buffing.
Let's hope the butchered magazine was not numbered to the pistol, although a donor magazine body can be found without much problems.
Would make a nice shooter though, for a shooter price, that is
