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The Strike Industries JComp Gen 2 takes the classic Japanese Type 89 muzzle device and drags it into the modern era for .308 and 7.62×51 NATO AR-platform builds. Strike listened to feedback on the original, kept the parts folks loved, and reworked the geometry to fight muzzle rise even harder. The result is a compact steel hybrid that acts as both a brake and a compensator, pulling double duty so your rifle stays flat and settled between shots.
The two-chamber design does the heavy lifting here, redirecting gas to knock down recoil and keep the muzzle from climbing. That combination means you stay on target through strings of fire instead of resetting your sight picture after every round. It runs a 5/8×24 thread pitch, so it drops right onto a standard .308 or 7.62 barrel, and it also handles .300 Blackout builds if you're running that on an AR-15.
Installation is straightforward since a crush washer comes in the box, so you're not scrambling to source hardware before your range day. The unit is also pre-drilled, which is handy for anyone planning to pin and weld it onto a shorter barrel. Machined from steel with a black finish, it's built to take the heat and abuse that a .308 throws at a muzzle device.
One of the smarter updates on this generation is compatibility with the Strike Industries Oppressor and FerFrans concussion reduction devices. If blast and back-pressure toward the shooter is a concern on your setup, you've got a clear upgrade path without swapping the whole muzzle device. It's a practical, no-nonsense comp that gives your .308 build real control and a clean, modern profile at the end of the barrel.
This version is built for .308 and 7.62x51mm NATO on AR-platform rifles like the AR-10. Because it shares the 5/8×24 thread pitch and a .34 caliber bore, it also works well on .300 Blackout builds. As long as your barrel is threaded 5/8×24 and your projectile fits the bore, you're good to go.
Yes, Strike Industries includes a crush washer in the box, so you can time and torque it without a separate purchase. That covers a standard install right out of the package. If you're pinning and welding to a shorter barrel, the comp comes pre-drilled to make that process easier.
It's a hybrid that does both jobs. The two-chamber design vents gas to cut felt recoil like a brake while the geometry works to hold the muzzle down and reduce rise like a compensator. That combination is what keeps the rifle flat and lets you stay on target for faster follow-up shots.
Yes, one of the key upgrades in this generation is compatibility with the Strike Industries Oppressor and FerFrans concussion reduction devices. That gives you a clean way to cut down on blast and back-pressure toward the shooter without replacing the muzzle device. It's a nice bit of future-proofing if concussion is a concern on your setup.
| UPC | 708747545746 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | SI-JCOMP2-308/7.62 |
| Caliber/Gauge | .308 / 7.62 NATO |
| Color | Black |
| Model | |
| Product Type | Compensator |
| Thread Pattern | 5/8"-24 tpi |
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