416R stainless steel, extended two-port barrel controls recoil and muzzle flip. Drop-in design replaces factory barrel with no fitting needed. Oversized lockup area enhances accuracy. Works with lead and jacketed ammunition. Models available for: Glock 17, 19, 26 in 9mm; 22, 23, 27 in .40 S&W; 22, 23, 27 in .357 Sig. Mfg: Storm Lake SPECS: 416R stainless steel.