This upper is a DPMS LR308 slickside upper with a super high rail. This upper does not have a forward assist or dust cover door nor does it have the capability of accepting these parts.
This upper is perfect for those dedicated long range rifles, the extra high rail provides a solid scope mounting option provides plenty of clearance for proper weapon manipulation without the risk of hitting your optic.
Note: This upper is ideal for use with a tubular hand guard. The rail height is EXTRA HIGH, meaning it is hard to find a hand guard that has a rail on top that meets flush with this upper.