CUSTOM BUILT BY A USMC ACTIVE DUTY ARMORER. 1:8 twist Crome lined barrel which you will not find online line. Without eotech and troy sights. Have receipts for all the parts purchased to build the rifle. PARRALOX TACTICAL free float hand rail and Nicole boron BCG. Magpul stock and hand grip. Spikes T1 buffer. JD machines upper and lower. This is the second lower built by JD Machines in billet with USMC logo that's why the serial number is MCB0002. Test shot 20 rounds and have the target paper. Will come with 2 magpul magazines. No trade and price is firm. You pay for FFL and transfer. Will not ship.