Optics Ready 9mm Echelon 4.5F Threaded Handgun W/ Extended Magazines; Includes 5 magazines three extended 20 round and two flush 17 round); Springer Precision Shorty Compensator and wrench; Springfield Pistol Bag; installed Springer Precision stainless guide rod and Springer Precision 14 lb recoil spring to go with the shorty compensator; the factory guide rod and recoil spring are also included; the barrel is a 5.28" hammer forged steel threaded .5x28, Melonite Finish; 1:10 twist rate; grip width 1.2"; height w/flush magazine 5.5", 6.5" w/ extended magazine; length is 8" ; slide is billet machined Melonite Finish; Optics ready; weight is 24.5oz w/ flush magazine, 24.9 oz w/ extended magazine; 3 dot tritium sights. Low round count. I will ship my FFL to your FFL, you pay the cost.