German  MP-40 9mm C&R The bolt matches the receiver, but the other parts are not matching.  

Wilson Combat Vickets Elite Full Size 9mm The Vickers Elite starts with our precision-machined and hand-fitted forged slide and frame combination along with our match-grade barrel for impeccable...

AGENCY ARMS® THREAD PROTECTOR 9MM  Specifications Threading fit: 1/2 x 28 Caliber: 9mm Finish Options: Stainless Steel, Black Nitride, Titanium Nitride (Gold)   

MK Arms INC MK 760 9mm This was designed by James Burgess and is a copy of the S&W 76 in 9mm.  

MK Arms MK760 9mm 1 mag

Vector Arms Registered Receiver Uzi 9mm