A steel (or even aluminum) framed Glock would serve just as well and be far more durable - but the profit margin would be less...
Yeah, I bet a steel framed Glock would be nice and light, too...
There are manufacturing shortcuts like polymers that have been foisted on the public as something "new and improved", but of course this is just a way for companies to increase their profit margin at the expense of the gullible.
Yeah, I bet that there's absolutely NO advantage to these materials... we should make EVERYTHING out of metal...