Re: quieting down the 10/22 action cycle?
The bad news is the guy who makes the JG Bolt Lock is having some health problems so none are available at the moment.
The good news is there are other similar devices available. Neither is as elegant as the JG but they accomplish the same purpose. The others both are just a magnetic gizmo that fits in the ejection port and sticks to the bolt, physically blocking charging handle from moving under recoil. And they obviously have to be physically removed in order to manually cycle the bolt and load the next round.
TBA Suppressors makes one and
Urban Rifle Supply makes the other. I have one of each (sorry, you've caught me before I could prepare a proper review) and the only material difference is what you have to do to cycle the bolt between shots.
The URS gizmo's ear sticks out at the rear of the ejection port. What works best for me is to pinch the ear with my thumb and forefinger, pull it out and cycle the charging handle with the other three fingers. You have to kind of fiddle to get it back in.
The TBA device is kinda clever because it's ear sticks out at a bit of an angle next to the charging handle. When you pinch the ear and the charging handle together, it also extracts the gizmo from the ejection port. Pinch, cycle, push in with the knuckle of your thumb and you're ready to fire again. It's almost as easy and clean as manipulating a bolt. URS's disclaimer says only to use CB ammo to prevent the device battering and damaging the receiver.
The URS gizmo doesn't require any fitting. The TBA gizmo is deliberately left too long so you can't install it without altering their design ...which probably is why they didn't feel the need for any disclaimer. Their destructions say to trim its length to fit but they fail to mention they also could be too tall. Mine was and I dang near ruined it before I figured that out.
The URS is $19. The TBA is $25. There's not $6 difference in them but I'd sooner have the TBA.