Hey all, Has any one had any experience with New Frontier Armory's LW15 Composit lower? Went to their website and watched the torture test crunching a alum. lower then their comp. lower. It surpassed the alum. and sprang back and was able to load a mag, awsome! They also offer a lifetime warranty. Supposed to be stronger than the Plumcrazy lower and cheaper too. Their barrels also sparked my intrest, 16'' match grade stainless 8 twist 3 grove polygon rifleing. Any thoughts?