KadeCAD1 (@KadeCAD1)

The 3D printed bolt action AR15 upper receiver and bolt carrier, now in development. Will this upper receiver be strong enough to withstand full power rifle ammunition? Let’s find out! The next test will consist of four shots, each shot being more powerful then the last. What do you think is the most powerful load this receiver will handle? Low power 45 ACP load Standard 45 ACP load Low power 450 bushmaster black powder load Standard power 450 bushmaster load