Description
The Griffin Armament Dual-Lok EZ-Brake is one of those parts that quietly does a couple of important jobs at once. On its own it's a lightweight three-slot muzzle brake that trims recoil and keeps the muzzle settled, but its real trick is serving as the mounting platform for Griffin's DUAL-LOK suppressor system. Machined from 17-4 PH stainless steel and dressed in a black nitride finish, it's built to shrug off heat, wear, and the kind of weather that eats up lesser hardware.
What Sets the Dual-Lok EZ-Brake Apart
The three radial slots handle recoil mitigation without any timing during install, which means you skip the shims and crush washers and just torque it down. It threads onto M13x.75 barrels and drops on with a standard 13/16-inch socket wrench, so no proprietary tooling is sitting in a drawer waiting to get lost. At roughly 2.5 ounces it's among the lightest mounts you'll find for the DUAL-LOK interface, and that trimmed weight keeps the front end of your rifle feeling lively and quick to point.
Running a Suppressor on the Dual-Lok EZ-Brake
When it's time to go quiet, this mount interfaces with the full DUAL-LOK lineup, including the DUAL-LOK 5, DUAL-LOK 7, HRT-556, and HRT-762 cans. The combination of a machined taper and the DUAL-LOK retention ring gives you a solid, repeatable lockup, which translates to minimal and consistent point-of-impact shift when you take the suppressor on and off. That's exactly what you want if you're switching between hosts or running the same can across a couple of setups.
Where the Dual-Lok EZ-Brake Fits Your Build
If you're already invested in the DUAL-LOK ecosystem, this is the sensible way to get a 30cal host ready with M13x.75 threads. It works just as well for someone building toward a suppressor purchase who wants a capable standalone brake in the meantime. Compact, tough, and simple to install, it earns its spot on the barrel whether the can is attached or not.
Key Specifications
- Manufacturer: Griffin Armament
- Manufacturer Part Number: LPR13
- UPC: 689396839373
- Caliber: 30cal / .30
- Thread Pitch: M13x.75
- Material: 17-4 PH Stainless Steel
- Finish: Black Nitride
- Weight: 2.5 ounces
- Overall Length: 1.4 inches
- Diameter: 1.075 in (splines) / 0.93 in (unit)
- Radial Slots: 3
- Timing Required: No
- Install Tool: 13/16 in standard socket wrench
- Suppressor Compatibility: DUAL-LOK 5, DUAL-LOK 7, HRT-556, HRT-762
What’s Included
- Griffin Dual-Lok EZ-Brake muzzle device (M13x.75, 30cal)
Frequently Asked Questions
Which suppressors work with the Dual-Lok EZ-Brake?
It's built to interface with the full DUAL-LOK series, including the DUAL-LOK 5, DUAL-LOK 7, HRT-556, and HRT-762. The taper and DUAL-LOK retention ring give you a secure, repeatable lockup every time you mount a can. If your suppressor uses the DUAL-LOK interface, this brake is the mounting point you need.
Does the Dual-Lok EZ-Brake need to be timed during installation?
No timing is required, which is a big part of its appeal. The three radial slots do their recoil work regardless of clock position, so you can thread it on and torque it down without shims or crush washers. A standard 13/16-inch socket wrench is all you need to get it seated.
Will this fit my barrel?
This version is cut for M13x.75 thread pitch and is intended for 30cal hosts. Double-check that your barrel's threads match M13x.75 before ordering, since Griffin offers the EZ-Brake in several thread patterns. If your muzzle threads are different, look for the matching version rather than forcing this one.
Is the Dual-Lok EZ-Brake a good standalone brake without a suppressor?
Yes, it functions as an effective three-slot muzzle brake on its own. The radial slots help tame recoil and keep the muzzle from climbing during strings of fire. It's a solid choice if you plan to add a DUAL-LOK can down the road but want a capable brake in the meantime.




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