ADCOR Door-less Stripped Upper w/ Smooth Polymer Dust Wiper

Upper made out of 7075 T6 Aluminum

a spring-loaded dust wiper mounted on the bolt carrier. Upon firing, the bolt carrier returns to ready position. The dust wiper moves into the ejection port opening flush with the inside geometry of the upper receiver preventing entry of dust, sand, or debris.

• The highly durable, self-lubricating polymer wiper withstands extreme temperature.