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End caps might be the most overlooked part of a modular suppressor, but they're where a lot of the fine tuning happens. The Pro Flash Reducer from JK Armament is the shortest cap in their lineup and serves as the standard flat end cap on most of their suppressors. This version is bored for .22 caliber and cut from 6AL-4V titanium, the same Grade 5 alloy you'll find in high-end suppressor tubes and baffles. It weighs right around an ounce, so it adds strength where you want it without hanging extra mass off the end of your can.
The design is simple and it works. Three concave channels machined into the face knock down some of the visible flash while giving the cap a clean, purposeful look. It's not a full flash hider, and it doesn't pretend to be. Think of it as the everyday cap: flat, compact, and quieter than running an oversized bore. That last part matters more than most people realize. Matching the end cap bore to the caliber you're shooting captures more combustion gas at the muzzle, and that translates directly into better sound suppression. If you've been running a .30 cal cap on a .22 or 5.56 host, swapping to this cap is one of the cheapest performance upgrades you can make.
JK machined 1-1/2 inch wrench flats into the cap, so a standard wrench is all it takes to change it out. No proprietary tools, no fighting with it at the bench. It threads onto JK's 155 series suppressors with the 1.375×24 pattern, and the Cerakote C-192 Armor Black finish blends right in with the rest of the can. Like everything JK Armament builds, it's made in the USA and backed by their lifetime guarantee. Keep one dedicated to your rimfire or .22 cal centerfire hosts and let your suppressor do its best work.
It's built for JK Armament's 155 series suppressors and threads on with the standard 1.375×24 pattern used across that line. It also works with the JK 155LT Mega Comp. If you're running a 105 series can, you'll want the 105 version of this cap instead.
Yes, and it's a smart move. The .22 cal bore covers .22 LR, .22 centerfires, and .223/5.56 projectiles. Running a bore size matched to your bullet captures more gas at the muzzle, which means measurably better sound suppression than a larger .30 cal cap on the same host.
The Pro is machined from 6AL-4V Grade 5 titanium, while the LT version is cut from 7075 billet aluminum. Titanium handles heat and hard use better over the long haul, making the Pro the pick for centerfire hosts and high round counts. The LT saves a few bucks and a touch of weight for lighter duty.
No. JK machined 1-1/2 inch wrench flats into the cap, so a common wrench handles removal and installation. It makes swapping between end cap styles or bore sizes quick and painless.
| UPC | 850038425241 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | JK155PROEC22 |
| Model |
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