Airforce Texan .257 .308 .357 .457 and .50

  Note: Please measure the outer diameter of your barrel with a caliper before ordering and compare it with the size chart below. There may be slight barrel-to-barrel variations from the spec due to the thickness of the protective coating of your barrel. If your barrel is bigger than spec, contact us about a custom adapter. Features: Made of steel  M18x1 threads, compatible with big-bore Ronin, Emperor and Great Kami moderators with M18x1 endcaps Comes with a black anodized Aluminum thread protector Adapters are meant to be a tight fit and have two set screws (M4) to help secure to the barrel In some cases, proper installation may require sanding inside the adapter Uses 2mm hex keys for set screws I would recommend putting a thin film of blue Loctite on the barrel, then sliding it into the adapter. Let the Loctite set overnight before shooting. The following are the inner diameter for my adapters: .257 = Use Condor adapter here There are two sizes for .308/357 .308/357 = 16mm or .625