Need to identify G29 Gen4 RSA

[jazzsax8]

I have a G29 Gen4 with an unidentified RSA installed.  It is all stainless looking with no hex to take it apart on the front end.  Both pieces are solid without the cutout you see on some RSA's.  The larger spring has some yellow paint on several coils.  I have seen the Gen3 models with paint on them to I.D. the spring weight but both Glockstore and Lonewolf can't seem to help.  It might be a Tungsten model as it weighs 41 grams.  A normal upgrade S.S. RSA that I saw only weighs 26.28 grams.  Could someone point me in the right direction to I.D. this?

[Schrambo]

I have the same one...  Glockstore T0914-21, tungsten with 21# spring...

[jazzsax8]

Thanks a bundle.  I have it for sale and did not want to misrepresent what it is.  $45 shipped for this community but also on Armslist.