I'm weighing the plusses and minuses of your TBAC mount adaptor versus the one made by Energetic Arms.

I see that the materials are completely different

Yours is made from 17-4 PH  H900

Theirs is made from Grade 5 Titanium and coated with DLC and boron nitride.


My main concern is with galling and durability. Can you help me weigh the benefits of your system over the other

This will be going in a KGM supressor with Grade 9 titanium tube. It will be on a bolt gun shooting 6.5

17-4 H900 is harder and stronger than titanium, but of course also heavier.  Ti is plenty strong enough for this application anyway.

There was at one time an issue with the taper angle on the EA adapter, but I'm sure they've fixed that by now.  Haven't seen one through in quite awhile.

Ours are a little lower profile, and the female threads are counterbored to the depth where they'll have full engagement with no unused threads between the taper and male CB muzzle device threads, so a couple fewer revolutions on installation.  Minor consideration.

At the end of the day,  I think most people probably make the decision based on the small cost difference and/or preference for a hex shape or spanner notches.