Outer barrel - 18'' tapered
18 inches outer barrel made by CNC. 6061 T6 aluminium, with an inner diameter of 8.56 mm eliminating the necessity of barrel spacers. It accepts inner barrels with a lenght of 470 mm, and a diameter of 6.55 mm or lower (AEG standard size). Muzzle features a 14 CCW airsoft standard barrel thread. Complete hopup unit (SRS407/SRS408) is included, with five M3x4 *e screws, 19x2 oring, 8x2 oring, and pre-installed 5.8x0.75 orings. Desert Tech licenced product.