Not really a build, but a modification.
DPMS Carbine tube and buffer
Magpul MIAD grip
Magpul CTR Stock
Phase5 V2 Bolt release (Works like the Magpul BAD lever but is one piece)
Blackhawk 9"-12" pivoting Bipod
BCM Gunfighter Mod 3 Large Charging Handle
Leupold 3x9 Mark 2 Scope with Larue LT 104 QD Mount
Just finished it today with the arrival of the Phase 5
I have it zeroed at 200 and cant wait until next month when I see how it does in some target events.
I haven't seen many R-25's and i'm sure fewer will look like this one.