Is polymer the way to go? For $109 might as well try it.
I have the complete rifle. I have put over 1k rounds through it.. No problems. really lite.. I might a couple lowers.. love it
I'm a little less than 1k rounds of Tulammo, and no issues what so ever. (I do give a good squirt of remoil after every couple mags.)
I also have an LW-15 with an RGUNS upper....hundreds of rounds, not a problem. Heck, now I see that ATI has a poly lower branded OMNI....