Accepts standard mil-spec parts
Multi-Caliber: 5.56mm 300BLK 22LR 6.8 SPC and others
Material: Polymer w/Insert
Patented Metal-reinforced polymer upper receiver
Lightweight with durability of a forged aluminum upper
Metal insert to reinforce critical areas of the upper
Only 1/2 a pound! (7 ounces)
ATI POLYMER HYBRID STRIP UPPER MULTI CAL W/ INSERT
SKU: AKATIHUP200
$33.53Price