Strike Industries AR Shim Set .308/ 7.62mm 5/8x24 TPI Stainless Black One Size. These Rifle Parts designed by Strike Industries are the perfect replacement for your one-time use crush washers that usually come with a silencer mount. With this Shim & Timing Set from Strike Industries you can properly time your suppressor based on your local ammo and avoid costly re-zeroing later on. Ensure your ports on a muzzle device are correctly positioned to reduce back-blast and assist in properly timing your suppressor. These 13 pieces of shim/timing are all the pieces you need for your builds. Pick up the Strike Industries .223/5.56 or .308 Shim/ Timing Set today to build a more reliable weapon. Specifications for Strike Industries AR Shim Set: Manufacturer: Strike Industries Color: Stainless Steel Fabric/Material: SUS 304 Stainless Steel Quantity: 13 Features of Strike Industries AR Shim Set Available in .223/5.56 or .308 Assists in timing Ensure alignment Properly position ports Reusable Made of SUS 304 Stainless steel Package Contents: Strike Industries AR Shim Set x4 0.075mm/0.0029 inch shim x3 0.22mm/0.0086 inch shim x3 0.11mm/0.0043 inch shim x2 0.34mm/0.0138 inch shim x1 2.0mm/0.0787 inch shim Strike Industries SI-AR-SHIM-308: AR Shim Set .308/ 7.62mm 5/8x24 TPI Stainless Black One Size