Identify This Mainspring Housing

I bought this mainspring housing from a friend of mine at the range. I don't know what it is. I know it's not a Wilson Combat VGrip. If you recognize it please let me know. I may need another. Thanks. 

called a wedge mainspring housing.. Brown used to make one and Dawson currently does.


sort of half way between the flat and arched.

looks just like my two wilson wedges but if you say its not then could be from Dawson

Lots of companies make or made them Dave

DavidR wrote:looks just like my two wilson wedges but if you say its not then could be from Dawson

I have a Wilson Combat VGrip and compared it to this. Very similar but different. And I tried the Wilson Combat part and it was not as comfortable as this one. I looked up Dawson / STI and I think it's possible this is one of theirs. 

Thanks everyone

What is different about this one that makes it more comfortable for you?

expendable wrote:What is different about this one that makes it more comfortable for you?

It's at a different angle and it's checkered "finer" (like corse vs fine) maybe more LPI.