A suppressed 9mm with subsonic ammo is a ton of fun. Here’s what to know.
- Booster (Nielsen device): most semi-auto pistols need one to cycle with a can.
- Threaded barrel: swap in one made for your pistol.
- Taller sights: suppressor-height sights let you see over the can.
- Multi-caliber: many 9mm cans also handle .22 and .380. Bigger .45 cans cover more but weigh more.
- Ammo: heavy subsonic loads like 147-grain 9mm are the quietest.
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