Daniel Defense DDM4 300 Blackout 10.3″ Upper Receiver Mk18 300S

This Daniel Defense 300 Blackout Upper Receiver is in great, used condition. There are some small wear marks visible on parts of rail edges as seen in the lisiting photos. This upper receiver has a 1/8 twist 10.3" barrel chambered in 300 AAC Blackout, a DDM4 Rail 9.0 rail which appears aesthetically similar to the RIS II, Daniel Defense DDM4 300S marked upper receiver, DD ejection port cover, and Magpul AFG. There is not a bolt carrier group, charging handle, or muzzle device included. This would make a great base for a 300 Blackout pistol or SBR build.