This was from one of our customer Daniel who purchased a Keymod handguard and found a way to secure it tight:
"This is very basic and none of the measurements are really critical except the thickness of the material. I used .014 shim stock, that can be purchased from MSC, most auto parts stores and maybe places like Harbor Freight. I imagine the thickness needed could vary depending on the tolerances Wolf holds on their gas block but .014” worked perfect on mine. I hope this helps."
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