The Umarex XBG and Umarex TDP 45 internally share many of the same components and I am assuming they both use many of the same internal parts, they do have much different plastics shells which you will find to have all mechanical parts to be moulded into with the exception of the Trigger, safety and magazine release. Again, most of the build materials are plastic with the exception of some internal parts, the magazines, the barrels and the triggers.

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