KAK PLAN B KRINK MZL DEV M24X1.5RH
The KAK PLAN B KRINK muzzle device is a precision-engineered suppressor mount designed for shooters running dedicated cans on their short-barreled rifles. Built around KAK's tapered-then-threaded design, this M24×1.5 RH device locks up consistently with Plan B suppressor hubs, eliminating the guesswork that comes with loose or poorly seated mounts. Whether you're running 5.56 NATO or 7.62×39, the large bore cavity won't limit your cartridge choices—and the 1.55" blast chamber protrusion keeps dwell time in the suppressed sweet spot for most SBR velocities.
Kak machines these from 17-4 stainless steel, so you're getting a part that'll handle repeated installation/removal cycles and the thermal stress of suppressed fire without degradation. At 3.7 ounces, it's light enough not to throw off your handling, yet heavy enough to add enough mass to help tame recoil when paired with a can. The included multi-wrench takes the guesswork out of installation—Kak recommends Rocksett and 20–25 ft-lbs of torque for a permanent mount.
One thing to know: many suppressor manufacturers condition their warranty on using their own or approved muzzle devices. If you're running a Plan B hub suppressor, you're covered; if you're adapting to other systems, check with your suppressor maker first. The KAK PLAN B KRINK is built for long-term reliability, but it's designed to work best within the Plan B ecosystem.
Key Features
- Tapered and threaded design for repeatable, secure lockup with Plan B suppressor hubs
- 17-4 stainless steel construction withstands thermal cycling and repeated installations
- Compatible with both 5.56 NATO and 7.62×39 ammunition
- 1.55" blast chamber protrusion optimized for suppressed short-barrel rifle performance
- Includes installation multi-wrench; use Rocksett and 20–25 ft-lbs torque for best results
- Lightweight at 3.7 oz—adds minimal weight to your barrel
Specifications
| Thread Pattern | M24×1.5 RH (right-hand) |
| Material | 17-4 Stainless Steel |
| Compatible Cartridges | 5.56 NATO, 7.62×39 |
| Blast Chamber Protrusion | 1.55" |
| Overall Length | 2.55" |
| Weight | 3.7 oz |
| Suppressor Compatibility | Plan B suppressor hubs |
| Installation Includes | Multi-wrench |
Frequently Asked Questions
Is this muzzle device compatible with any suppressor?
The KAK PLAN B KRINK is engineered specifically for Plan B suppressor hubs. Because many suppressor manufacturers condition their warranty on the use of their own or approved muzzle devices, confirm compatibility with your suppressor's maker before installation.
What thread size does this device have?
The KAK PLAN B KRINK threads are M24×1.5 right-hand. Verify that your barrel is threaded to this specification before purchase.
What cartridges can I shoot through this?
This device is compatible with both 5.56 NATO and 7.62×39 ammunition, making it flexible for shooters running multiple calibers on the same platform.
What should I use to install this muzzle device?
KAK includes a multi-wrench with the device. Kak recommends applying Rocksett to the threads and tightening to 20–25 ft-lbs of torque for a secure, permanent mount.

