Rock River Arms tan X1 rifle comes out of the box without any changes needed to be made. This rifle has a custom Operator Carbine Stock Hogue grip two stage trigger winter trigger guard low profile gas block 18 inch fluted barrel Hunter muzzle brake TroXL free float rail an 1 MOA accuracy. This tactical long range rifle comes in a Rock River Arms Case with one magazine LPS1 weapon wipe manual and warranty. Its is optic ready for the shooters choice.