Accuracy International AT .308 ( Interchangable barrel system ) and folding stock this rifles comes with a 308 barrel but can be swoped out for other calibres by un screwing it - she has 2 x 10 shot mags a tactical muzzle break that will accept a moderator over it (ai tac mod) - ( Scope and mount not included ) - she also has a AI bipod and full compliment of rails - the rifle new was around £4200 and has only seen a few hundred rounds so this is your chance to pick up a bargain !