Even though a rimfire rifle is not offered in the Schultz & Larsen range, the company do make a rimfire specific moderator. As you would expect from a company dedicated to doing everything in the best way, they offer a dedicated .17 moderator for the very popular .17HMR.
Rimfire moderators are muzzle mounted.
.22 LR Supersonic
||1/2" x 20 UNF