Grey ghost prec glock 26 9mm non-threaded black nitride! FEATURES:416R Gun Barrel Quality Stainless SteelMatch Grade drop in barrel Final dimension of +/- 0.003" for consistent accuracySAAMI spec. 9mm Match chambers Black Nitride Finish for durability without hindering performanceThreaded Barrels are 1/2 x 28" TPI and include an O-Ring and Thread Protector Other Features: Constructed of 416r stainless steel.Saami spec match grade chamber