American Tactical Imports is producing this light weight extremely durable Omni Hybrid Max AR-15 metal reinforced polymer upper. The metal inserts imbedded into this upper reinforces those critical areas where the most stress is likely to occur. It's ready to accept all of your standard upper assembly components with the flat top optic ready design you're looking for. This is a multi-caliber upper that can be used with any standard AR caliber build including, .22 LR, 5.56 NATO, .223 Rem, .300 BLK, or 6.8 SPC. If you're looking for a lightweight affordable AR upper on you're next build then you're looking for the ATI Omni Hybrid Max Stripped Upper Receiver!  

Specifications and Features:
American Tactical Imports Omni Hybrid Maxx ATIHUP200 
AR15 Stripped Upper Receiver 
Metal Reinforced Polymer Construction 
Flat Top Optics Ready Design 
Weight 0.5 Pounds 
Multi-Caliber 
Black