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A suppressor already softens the shooting experience, but the end cap up front is where you can fine tune how the whole setup behaves. The JK Armament 155 LT Compensator End Cap replaces the standard flat cap on JK 155 series cans and the 155 LT Mega Comp with a ported design that vents gas through three rows of circumferential ports. Because those ports wrap all the way around the cap, there is no timing to fuss with. Thread it on, snug it down, and it works the same no matter where it stops. That is a small detail that saves real headaches compared to traditional comps that need shims or crush washers to index correctly.
The idea is simple. Gas that would normally push straight out the front gets redirected, which trims recoil impulse and helps keep the muzzle flatter between shots. On a bolt gun that means staying in the scope to spot your own impacts, which is why ported caps like this have caught on with PRS folks. On a .22 caliber centerfire like a 5.56 carbine, the difference shows up in faster follow-ups and a sight picture that barely moves. Rimfire plinkers benefit too, though the effect is more noticeable the more gas your cartridge produces.
JK machines this cap from T6-7075 billet aluminum and finishes it in Type 3 hard anodize, so it stays tough without adding weight where you least want it. It comes in at right around 1.16 ounces with a 1.55 inch diameter that matches the 155 tube profile cleanly. The 1-1/2 inch wrench flats mean a standard wrench or armorer's tool handles installation and removal, no proprietary tools needed. That makes it painless to swap between this comp cap and a flash reducer or flash hider cap depending on the day's shooting.
Like the rest of the JK Armament lineup, this end cap is made in the USA and backed by JK for life. The .22 cal bore keeps things matched to your rimfire and .223/5.56 setups, and JK offers the same cap in other bore sizes if your modular can pulls double duty across calibers.
No. The ports run in three rows all the way around the cap, so orientation does not matter. Thread it on with a standard wrench on the 1-1/2 inch flats and you are done, no shims or indexing required.
It is designed for JK Armament 155 series suppressors and the 155 LT Mega Comp. The .22 cal bore version is the right pick for rimfire and .223/5.56 configurations. If you run other calibers through your modular can, JK makes the same cap in 9mm, .30 cal, and .45 cal bores.
The circumferential ports redirect gas that would otherwise exit straight forward, which reduces felt recoil and muzzle rise. That helps you stay on target for follow-up shots and makes it easier to spot your own impacts through a scope. It is a popular swap for competition and hunting rigs alike.
Yes. T6-7075 is a high-strength billet aluminum, and the Type 3 hard anodized coating adds serious surface durability against wear and carbon. As an end cap it is not taking the same abuse as a blast baffle, and JK backs it with a lifetime guarantee.
| UPC | 850038425364 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | JK155LTCEC22 |
| Model |
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