SAF filed an amicus brief.
Edit - Also credited, per SCOTUS docket: National Rifle Association of America, California Rifle & Pistol Association, Incorporated, Second Amendment Law Center, Inc., Minnesota Gun Owners Caucus, and the Citizens Committee for the Right to Keep and Bear Arms
Article: https://saf.org/saf-files-amicus-brief-urging-supreme-court-to-grant-review-in-adamiak-case/
Brief: https://www.supremecourt.gov/DocketPDF/25/25-1190/407901/20260504114935921_Brief of Second Amendment Foundation et al.pdf