Hearing Protection Act in SASS Wire Posted January 27, 2017 Please, please please, call your legislators and ask them to pass this bill! Silencers are fantastic, and I would encourage anyone who is thinking about it to start the paperwork now. If the HPA passes, the demand will quickly outreach the supply and you thought 22 ammo was hard to find.....just wait (IMO). NFA tracker provides some average wait times, which have always been long. If the HPA passes, your wait time may be just as long, or longer - as you will not be waiting for the manufacturer to just make them. I want to protect my son's hearing, to this end we use suppressors whenever we can in shooting. It also tends to keep the neighbors happy. I'd echo Lungers comments, about installation. Not sure how we could accommodate suppressors into SASS - and not sure we need to.