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I have a barrel with a 9/16 x 18 thread. I can not find a thread protector let alone a three lug adapter. The three lug adapters HK Parts sells are 1/2 x 28.
Does anyone know where to source the proper adapter /thread protector?
To those who have the three lug: Is there enough sidewall thickness to drill out the threads and tap to 9/16 x 18?
Does anyone know where to source the proper adapter /thread protector?
To those who have the three lug: Is there enough sidewall thickness to drill out the threads and tap to 9/16 x 18?