I put together a MK12 Mod 0ish upper. I like my mod 1 better so never used this. Build as follows, 0 rounds on it. Asking $1200 shipped.
-GREY GHOST PRECISION FORGED UPPER RECEIVER
-BCM FORWARD ASSIST
-BCM DUST COVER
-BALLISTIC ADVANTAGE PREMIUM 18” SPR BARREL 1:8 223 WYLDE
-PRI GEN 3 MK12 MOD 0 HANDGUARD
-PRI GEN 3 MK12 MOD 0 SEAN SLEEVE
-PRI FLIP UP FRONT GAS BLOCK
-PRI M84 GAS BUSTER CHARGING HANDLE
-CRYPTIC COATINGS MIL-SPEC BCG
-DEAD AIR KEYMO MUZZLE BRAKE
-GREY GHOST PRECISION FORGED UPPER RECEIVER
-BCM FORWARD ASSIST
-BCM DUST COVER
-BALLISTIC ADVANTAGE PREMIUM 18” SPR BARREL 1:8 223 WYLDE
-PRI GEN 3 MK12 MOD 0 HANDGUARD
-PRI GEN 3 MK12 MOD 0 SEAN SLEEVE
-PRI FLIP UP FRONT GAS BLOCK
-PRI M84 GAS BUSTER CHARGING HANDLE
-CRYPTIC COATINGS MIL-SPEC BCG
-DEAD AIR KEYMO MUZZLE BRAKE
