My concern: lack of maintaining a perpendicular surface on the rear of the muzzle device. There is enough play in the threads to allow a baffle strike in a muzzle brake due to it being torqued against a non square surface (whether the rear of the device or the barrel shoulder).
Same reason that precision muzzle devices earn against using crush washers. The AAC shim set is cheap and functional. Gitchusum.
"That thing looks about as enjoyable as a bowl of exploding dicks." - Magic_Salad0892
"The body cannot go where the mind has not already been."
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