This item is used but in nice condition 
The CMMG MK3 is a semi-automatic rifle chambered in 308/7.62. It features a 16-inch barrel and a standard capacity of 20 rounds plus one in the chamber. This rifle is finished in black Cerakote and configured with a five-position adjustable stock. The MK3 platform is designed around the AR-style layout, using a direct-impingement gas system and standard controls for this pattern of rifle.
Factory configuration includes a CMMG barrel with a 1:10 twist rate, suitable for stabilizing a wide range of 308 and 7.62mm projectiles. The rifle is equipped with Noveske flip-up iron sights for backup or primary aiming use, and a vertical foregrip mounted to the handguard for improved handling. The upper and lower receivers share matching finish and contour typical of the MK3 series, with integral Picatinny rail sections for sight or accessory mounting. The adjustable stock provides five length settings to accommodate different shooter preferences and gear configurations.
Included with the rifle is a 20-round magazine compatible with the 308/7.62x51 cartridge. The configuration described includes the Noveske flip-up sights, vertical foregrip, and adjustable stock as installed components

If it's active it's still available, I won't respond to still available or trade