No, not a clone, but I refer to it as an MK12 Mod 1 INSPIRED build. It all started with the KAC SR-15 FF RAS (long p/n 99167) that I got from Elephant in the PIF thread.

Parts list:

Upper:
Noveske gen 1 chainsaw - had on hand
Ballistic Advantage 18" 5.56 SPR rifle length gas barrel w/ Ops 12, gas block and tube
YHM Phantom QD muzzle brake
BCM BCG
Radian Raptor CH
Magpul MBUS Pro
Vortex Strike Eagle 1-8x24
LaRue LT204 C.A.N. mount
KAC FF RAS w/ 11 rib panels
Magpul bipod

Lower:
MEGA forged lower - had on hand
BAD-EPS
BAD-ASS-ST
LaRue MBT
Spikes mag release, bolt catch, buffer retainer
Tactical Link EBAL
Hogue grip
Magpul trigger guard
Brownells A1 stock kit and retro A1 stock