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One suppressor, a whole safe full of hosts. That is the entire point of the Banish modular pistol can lineup, and this 4787 piston in 1/2×28 is the part that makes it happen. It drops into the rear of your Banish 45 or Banish 46 and lets the can thread straight onto any barrel cut in the 1/2×28 pattern. Since that is far and away the most common thread pitch on 9mm pistols and rimfire barrels in the US, this one piston opens up a serious number of hosts, from a threaded Glock barrel to a Ruger Mark IV to a pistol caliber carbine.
Banish machines these pistons from heat treated steel, so they hold up to the heat and carbon that pile up at the mount over long range sessions. Each one is engraved with the thread diameter, pitch, and rotation direction right on the piston, which sounds like a small thing until you have a drawer with three or four of these and need to grab the right one fast. The swap itself is quick and does not call for a bench full of tools, so moving your can from a .45 ACP host over to a 9mm or rimfire gun is something you can do between magazines.
On tilting barrel pistols, the piston is not just an adapter. It is part of the booster system that lets the barrel cycle properly under the added weight of a suppressor, which is why running the correct Banish piston matters for reliable function. On fixed barrel hosts like carbines and rimfire pistols, it still gives you a solid, repeatable direct thread connection.
If your Banish 45 or 46 came set up with the .578×28 piston for a .45 host, adding this 1/2×28 version is the cheapest way to double the number of guns your tax stamp covers. Match the piston to the barrel, spin the can on, and get back to shooting.
Yes, this piston is made for the Banish 45 and Banish 46 pistol suppressor family. It installs in the rear of the can in place of whatever piston is currently in there, letting you mount to any 1/2×28 threaded barrel. It is not intended for other suppressor brands or Banish rifle cans that use different mounting systems.
1/2×28 is the most common thread pitch in the country for 9mm pistols and just about all .22 rimfire threaded barrels. Threaded Glock, SIG, and Smith and Wesson 9mm barrels typically use it, along with rimfire hosts like the Ruger Mark series and 10/22, plus most 9mm pistol caliber carbines. Always confirm your specific barrel's thread pitch before mounting.
No, the piston swap is a quick, tool-free style job by design. You unscrew the rear mount assembly, exchange pistons, and reassemble, which takes about a minute once you have done it. The thread specs engraved on each piston make it easy to grab the right one if you keep several on hand.
On semi-auto pistols with tilting barrels, the piston works as part of the booster system that helps the gun cycle reliably with a can attached. Stacking a thread adapter on the wrong piston adds length and weight at the muzzle and can hurt reliability. A dedicated piston in the correct pitch keeps the mount short, secure, and functioning the way Banish designed it.
| UPC | 810171224156 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 100000310931 |
| Caliber/Gauge | .45 ACP |
| Color | Silver |
| Length | 3 |
| Model | |
| Package Height | 0.001 |
| Package Width | 2.5 |
| Product Type | Accessory-Silencer Accessories |
| Shipping Weight | 0.1 |
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