is a polymer lower good? 🤔 airsoftcqb ar15 build Ar15 Polymer Lower
KP-15 Products RT15-POLY-CL-A RT15 Poly Complete Lower Receiver Essential Survival Tools - Some Are Free, Some Require S&H, Some Are Necessary And All Are Unique! New Frontier Armory Polymer AR Lower - TheFireArmGuy The ATI Omni is a polymer lower for the AR-15. It is designed to be compatible with all mil-spec uppers and parts. You can mount virtually any stock or pistol Polymer lower, good or bad? : r/ar15 ...