This is a Daniel Defense AR known as the DDM4V7 chambered in 223 Remington, model 02-128-02338-047.
The Daniel Defense V7 is the first rifle in the DDM4 lineup to feature the M-LOK(R) attachment technology with the Daniel Defense MFR 15.0 rail. This rifle is finished in Mil Spec + Cerakote.
Features:
Mil-Spec
Enhanced Flared Magazine Well
Cold Hammer Forged Barrel
Daniel Defense Flash Suppressor
M16 Profile BCG