Dead Air Muzzle Device Shim Kit 1/2-28, Silver

The Dead Air Shim Kit for barrels with 1/2-28 threads is composed of three different shim thicknesses. Always place the thickest shim(s) on the barrel first.Specifications:Thread Pattern: 1 / 2"-28 tpi UPC: 810042342118 Part #: DA001 Shim Thicknesses Included: (.004", .006", .060") Finish: Matte Black One Notch: .004" thick, 40 degree rotation, 1/9 Turn, qty: 4 Two Notches: .006" thick, 60 degree rotation, 1/6 Turn, qty: 5 No Notch: .060" thick, 1.7 Turns, qty: 1Thread Pattern: 5 / 8"-24 tpi UPC: 810042342200 Part #: DA002 Shim Thicknesses Included: (.004", .006", .060") Finish: Matte Black One Notch: .004" thick, 35 degree rotation, 1/10 Turn, qty: 4 Two Notches: .006" thick, 50 degree rotation, 1/7 Turn, qty: 5 No Notch: .060" thick, 1.4 Turns, qty: 1