I already have a few of these gas blocks and for me they are hands down the very best adjustable gas block available.
I’m leaving this review for another reason and it’s not on the quality of their product but on the quality of their customer service. I ordered this gas block for a Christmas gift and the order was done in time for a delivery before the big day BUT the shipping was the problem. Not on SLR’s end but once it was on the way to me. It got closer to Christmas and the shipment was not moving from a point midway in the shipping to me. So Mr. Todd took it upon himself and sent out another order to me so I would get my order in time for Christmas. Great product backed up with even greater customer service. Thank SLR