Originally Posted by AgentTikki
id buy one for a range toy or plinker..........problem is I'm sitting on 2 lowers atm......no it'll be a while.
And btw old glock 17 and 19 probably have 10k rounds out them no worse for wear...I expect my grand kids to shoot em. Polymer is great.
Glocks were designed from the beginning to be a composit structure. So its designed to play to the strengths of the material used. It cannot be expected that composits will perform better than a metal part when using the exact same form factor as the metal part. You must change the thiskness and form to play to the strength of the material used. Molding an exact copy of an AR lower will make it lighter but not stronger.
ETA: If they want to prove something with their crush test they should do it again. Only this time, do it where the buffer tube attaches to the lower and apply the same force to each and see which one fails first. Or at the center of the lower where the bolt catch and mag release go through the lower. These would be true tests of the structure. The true test of how strong a structure is how much FORCE it can resist not how much it can FLEX