AK-74 style SKS Muzzle Brake, has cross pin and 3 set screws to hold and assure alignment. Directs gases up and sideways/forward. Very effective. $35 each, or $60 for both.

I can meet in the Mesa/AJ/Gilbert area most afternoons. I also get over to the west side every couple weeks. Not interested in anything other than cash offers. If the posting is up it's still available no need to ask.