Bufferless 9mm Upper Assembly Rifle Receiver

FIG. 1 is a perspective view of a bufferless 9mm upper assembly rifle receiver showing my new design; FIG. 2 is a side view of the bufferless 9mm upper assembly rifle receiver; FIG. 3 is a top view thereof; FIG. 4 is a perspective view of a bolt assembly mechanism of the bufferless 9mm upper assembly rifle receiver and certain internal components; FIG. 5 is a top view thereof; FIG. 6 is a bottom view thereof; FIG. 7 is a first side view thereof; FIG. 8 is a second side view thereof; FIG. 9 is a front view thereof; and, FIG. 10 is a back view thereof.