Detail view of Auto-Ordnance engraving

Detail view of Patent numbers engraving

Detail view of right side engraving

Detail view of left rear engraving - yes, that is how they spelled Caliber

Detail view of left front engraving

Detail view of 17 degree flat for ejector

Detail view of ejection port. Note also magazine/drum cutout, fillets for drum slots, and feed ramp

Detail view of underside showing rear contouring and frame latch hole

Detail view rear contouring and buffer pilot hole. Rear contours are cleaner and more symmetrical than original Colt

Detail view showing precise fit of original trigger frame with original 50-rd drum in place

Detail view of precise fit of original trigger frame and original XX magazine

Top of receiver, note actuator slot, all contouring, corner rounds, and high quality of finish

Right side of receiver showing high quality of military blue finish. The brown color inside the ejection port is grease

View of receiver showing high quality of Philadelphia Ordnance military blue finish