Hi folks, I am a collector of Detonic's having now procured about 25 of them. All from Mark 1's to mark VII's and a couple of Service Masters. Pocket 9's included. But I have never come across this type of Detonics. It is a upper slide marked Detonics and the lower is an AMT receiver SN A01xxxx. So my research has not been very fruitful so I need to rely on you experts to help me ID this as either a true Detonics or a rebuild. Chewy56