and amazon still sells it. I also wrote the ones on the .45 and Mini14 cans. the 22lr book has sold over 1/2 mill copies.
https://www.amazon.com/How-Make-Silencer-22/dp/0873647599
https://www.amazon.com/s?k=how+to+make+a+silnecer+for+a+.45&i=stripbooks&ref=nb_sb_noss
I made and mounted 40 silencers on 40 Jennings .22lr pocket guns, and sold them to a guy who took them to belilze and traded them for 100 lbs of high grade pot. the $1000 an lb kind, 40 years ago, $6,000 in todays money. I made almost a dozen 9mm smgs with silencers on them in S Cal, in 1984. It found out later that ATF had bought 5 of them, but they did so thru an intermediary. They waited 2 weeks to raid the old barn in which I had the shop, with a chopper, dog team, swat team, they had everyone except me. I'd walked down the street the minute I got the money, and never went back. I'd had a friend bring his van at 2 Am the night before and take all of my stuff to his storage. I'd sprayed down everything with WD-40 and even took the log that I'd testfired the guns into. So all they had was the word of some convicted felons that i ever existed, and they couldn't find me. A friend paged me and told me to get to a TV.cause ATF had one of my guns on a documentary. I found out later that those agents got their pay docked they had told their boss that they had me under 24 hour personal surveillance, and they were goofing off someplace.
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I made and mounted 40 silencers on 40 Jennings .22lr pocket guns, and sold them to a guy who took them to belilze and traded them for 100 lbs of high grade pot. the $1000 an lb kind, 40 years ago, $6,000 in todays money. I made almost a dozen 9mm smgs with silencers on them in S Cal, in 1984. It found out later that ATF had bought 5 of them, but they did so thru an intermediary. They waited 2 weeks to raid the old barn in which I had the shop, with a chopper, dog team, swat team, they had everyone except me. I'd walked down the street the minute I got the money, and never went back. I'd had a friend bring his van at 2 Am the night before and take all of my stuff to his storage. I'd sprayed down everything with WD-40 and even took the log that I'd testfired the guns into. So all they had was the word of some convicted felons that i ever existed, and they couldn't find me. A friend paged me and told me to get to a TV.cause ATF had one of my guns on a documentary. I found out later that those agents got their pay docked they had told their boss that they had me under 24 hour personal surveillance, and they were goofing off someplace.