Yankee Hill Machine Co Thread Protector, Pistol, .45, M16X1LH, .750 Outer Diameter, Matte YHM-3428-B
Yankee Hill Machine Co Thread Protector, Pistol, .45, .578X28, .650 Outer Diameter, Matte YHM-3426-B
Yankee Hill Machine Co Thread Protector, Pistol, 9mm, M13.5X1LH, .625 Outer Diamter, Matte YHM-3419-B
Yankee Hill Machine Co Thread Protector, Pistol, 9MM, 1/2X28, .570 Outer Diameter, Matte YHM-3418-B