Description
Sometimes the smartest upgrade is the simplest one. The JK Armament LT Flash Reducer is the shortest end cap JK makes, a flat, low-profile front cap that comes standard on most of their suppressors. This version is bored for .30 caliber and machined from T6-7075 billet aluminum, so it adds almost nothing to your can. We're talking 0.63 ounces. If you've built out a lightweight hunting rig or a trimmed-down bolt gun, that number matters more than it sounds.
What the LT Flash Reducer Brings to Your Can
Three small concave channels are machined into the face of the cap, and they pull double duty. They give the front of your suppressor a clean, finished look, and they take some of the edge off muzzle flash compared to a plain flat cap. It's not trying to be a full flash hider, and that's the point. You get a tidy profile with a little flash reduction baked in, without adding length or weight to the front of your setup. The whole thing wears a Type 3 hard anodized finish, which shrugs off wear and corrosion a lot better than standard anodizing.
Fitment and Easy Swaps
This cap fits JK Armament's 1.55 inch diameter cans, including the 155 PCX, 155 RCX, 155 SBRX, and the 155LT series, and it also works with the 155LT Mega Comp. Swapping it on takes nothing fancy, just the built-in 1-1/2 inch wrench flats and a standard wrench. That makes it painless to keep a spare on hand or to match your end cap bore to whatever you're running that day. Pairing the cap's bore to your caliber tightens up performance, so if your can spends most of its life on a .308 or 6.5, this .30 cal bore is the one you want up front.
Why Pick Up a JK Armament End Cap
JK builds these in the USA and backs them for life, which tells you how confident they are in the machining. Whether you need a replacement, a spare for the range bag, or you're rounding out a modular JK build, this is a small part that does its job well and stays out of the way.
Key Specifications
- Manufacturer: JK Armament
- Model: LT Flash Reducer End Cap
- Manufacturer Part Number: JK155LTEC30
- UPC: 850038425265
- Caliber: .30 Cal
- Material: T6-7075 Billet Aluminum
- Finish: Type 3 Hard Anodized, Black
- Weight: 0.63 oz
- Diameter: 1.55 in
- Fits: JK 155 PCX, 155 RCX, 155 SBRX, 155LT, 155LT Mega Comp
- Wrench Flats: 1-1/2 in
- Country of Origin: USA
What’s Included
- JK Armament LT Flash Reducer End Cap, .30 Cal
Frequently Asked Questions
Which suppressors does the JK Armament LT Flash Reducer End Cap fit?
This cap is made for JK Armament's 1.55 inch diameter cans, including the 155 PCX, 155 RCX, 155 SBRX, and the 155LT series. It also works with the 155LT Mega Comp. It's the same flat end cap style that ships standard on most JK suppressors, so it drops right in as a replacement or spare.
Do I need special tools to install this end cap?
No. The cap has built-in 1-1/2 inch wrench flats, so a standard wrench handles installation and removal. It takes about a minute to swap, which makes it easy to switch bore sizes between range trips.
How much flash reduction does the LT Flash Reducer provide?
The three concave channels machined into the face take some of the edge off muzzle flash compared to a plain flat cap, but this is a low-profile design first. If maximum flash suppression is your priority, JK's longer Flash Hider end cap with prongs does more in that department. This one is the pick when you want the shortest, lightest cap available.
What's the difference between the LT and PRO versions of this end cap?
The LT is machined from T6-7075 billet aluminum, making it the lighter and more budget-friendly option at just 0.63 ounces. The PRO version is made from 6AL-4V titanium for added durability under harder use. For most bolt guns and hunting setups, the LT aluminum version is plenty tough and keeps weight to a minimum.





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