6.5 Grendel 20" Advanced Weapon System rifle features a flat-top upper receiver with 20" stainless steel barrel,1:9 twist with low-profile gas block, Midwest Industries free-floating four-railed handguard system, A2 butt stock, and military-style trigger, Shilen barrels are threaded 9/16-24 RH . Alexander Arms 6.5 Grendel 20" Advanced Weapon System-Complete Shilen Match Grade Barrel WCI Muzzle Brake Magpul UBR Collapsible Buttstock Stock A2 Buttstock XTM Enhanced Rail Panels. Colors come in packs with 4 pairs: 3-FDE, 3-ODG, 3-FOL, 2-BLK Enidine Hydraulic Recoil Buffer Stock recoil buffer NcStar scope 6-24x50mm with mounts 3-25rd mags, 10rd mags, 2-4rd mags Alexander Arms Carrying case 40rds of Hornady 123gr SST Ammo 173 brass casings There's been 200rds fired through it and it fired flawlessly. The only scratches on the gun are on the rails where the optics were set and they are very minimal. Other than that the rifle looks brand new. I'm selling this only as a package deal. I've invested over $3000 into this gun and am looking to sell it for $2700.