Description
The Banish 45 is a do-it-all pistol can, but hang it on a fixed barrel host with the booster spring still in place and you're asking for trouble. Tilting-barrel pistols need that spring so the recoil-operated Nielsen device can help the action cycle. A pistol caliber carbine or subgun has a barrel that never moves, so the spring serves no purpose there and can let the can shift under recoil. This Fixed Barrel Spacer solves the problem the right way. Pull the spring out of your piston assembly, drop the spacer in its place, and the whole booster locks up solid.
Where the Banish 45 Fixed Barrel Spacer Earns Its Keep
Think Sig MPX, CZ Scorpion, Kriss Vector, and similar blowback or delayed-blowback hosts. These are exactly the guns this spacer was built for. With the spacer installed, the Banish 45 sits rigid on the muzzle with no booster movement, which keeps everything aligned shot after shot and takes one variable out of the equation when you're chasing consistency. It also works for other fixed barrel setups where you'd otherwise be running a booster that has no job to do.
Simple Install, Easy to Swap Back
There's no gunsmithing involved here. Unscrew the piston housing on your Banish 45, swap the spring for the spacer, and reassemble. When you want to move the can back to your tilting-barrel pistol, reverse the process and reinstall the spring. Plenty of folks keep the spacer in their range bag so they can jump between hosts in the parking lot. Just remember the golden rule: spring for tilting barrels, spacer for fixed barrels. Never run the spacer on a Browning-style pistol.
One Small Part, One More Reason to Love the Banish 45
At roughly three inches long and next to nothing on the scale, this black anodized aluminum spacer is one of the cheapest ways to double the number of guns your Banish 45 can live on. If you own the can and anything with a fixed barrel, this should already be in your cart.
Key Specifications
- Manufacturer: Banish (Silencer Central)
- Model: Fixed Barrel Spacer
- MPN: 5968 / 100000310953
- UPC: 810171222749
- Compatibility: Banish 45 suppressor
- Intended Hosts: Fixed barrel firearms (PCCs and subguns such as Sig MPX, CZ Scorpion, Kriss Vector)
- Function: Replaces the booster spring inside the Nielsen device
- Material: Aluminum
- Finish: Black Anodized
- Length: 3.05 in
- Shipping Weight: 0.05 lb
What’s Included
- Banish 45 Fixed Barrel Spacer
Frequently Asked Questions
What does the Banish 45 Fixed Barrel Spacer actually do?
It replaces the recoil spring inside the Nielsen device (booster) on your Banish 45. Tilting-barrel pistols need that spring to cycle reliably, but fixed barrel guns don't. Swapping in the spacer locks the booster solid so the can mounts rigidly on hosts where the barrel doesn't move.
Which guns should I use the fixed barrel spacer with?
Any fixed barrel host, most commonly pistol caliber carbines and subguns like the Sig MPX, CZ Scorpion, and Kriss Vector. If the barrel doesn't tilt or recoil during cycling, this is the setup you want. Do not use the spacer on tilting-barrel handguns, since they need the spring to cycle properly.
Is the spacer hard to install?
Not at all. You open up the piston assembly on your Banish 45, remove the booster spring, and drop the spacer in its place. It takes just a few minutes with no special tools, and it's just as easy to swap back to the spring when you return the can to a pistol.
Will this fixed barrel spacer work with other Banish suppressors?
This particular spacer is sized for the Banish 45 and its Nielsen device. Banish makes separate fixed barrel spacers for other models in the lineup, so check that you're ordering the one that matches your specific can. For the Banish 45, model 5968 is the correct part.




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