VG6 Precision APVG200027A GAMMA VG6 BlackNitride 17-4 Stainless Steel with 1/2"-28 tpi Threads 1.75" OAL for 9mm Luger $80.99
American Precision Arms G2F5838N Gen 2 Fat Bastard Self Timing Brake Black Nitride Stainless Steel with 5/8"-24 tpi Threads, 3.30" OAL & 1.115" Diameter for 338 Cal Rifle $129.00