$89.00
7 in stock
Online inventory may differ from in-store availability.
Quick turnaround so you get your gear sooner.
Trusted checkout with industry-standard protection.
Keeping Traditions Alive Since 1953
Secure Transactions provided with 
The LANTAC Dragon Plan-B Short is a compact muzzle brake built for 6mm ARC rifles that do double duty on the range and behind a suppressor. It threads 5/8×24 and uses LANTAC's patented Short Energy Pulse system, which shortens the recoil cycle so the impulse from one shot doesn't overlap and shove you off target before the next one breaks. On a cartridge like 6mm ARC that already runs mild, the payoff is a flatter-shooting gun with almost no muzzle jump, which makes spotting your own hits at distance a whole lot easier.
The Plan-B part is the interesting bit. Instead of a plain brake, this one is designed as a HUB-style mount, so you can run it as a standalone brake or use it as the interface for a compatible Plan-B suppressor setup. It gives you flexibility to move between suppressed and unsuppressed without swapping muzzle devices. Worth noting straight up: the mount design is not licensed from Q, so if you plan to run a can, check how that plays with your suppressor's warranty before you commit.
LANTAC machines these on Swiss lathes from AISI 4140 steel, hardened into the low-to-mid 50s on the Rockwell C scale, then finishes them with a QPQ nitride treatment for corrosion resistance and a long service life. The short version measures right around 1.75 inches with a 0.900-inch mount diameter, so it keeps things trim on the end of your barrel. Each one is serial numbered for quality control, which tells you LANTAC stands behind the machining.
Installation is straightforward for anyone comfortable with basic AR tools. The brake ships with a timing shim set to get it clocked and indexed correctly, and LANTAC recommends a semi-permanent thread locker like Rocksett to keep it locked in place. If you're building out a precision or competition 6mm ARC upper and want a brake that can grow into a suppressor host later, this one covers both jobs without forcing a compromise.
Yes, this model is made specifically for 6mm ARC and uses a standard 5/8×24 right-hand thread, which is the common pitch on 6mm ARC barrels. As with any muzzle device, double-check your barrel's thread pitch and shoulder before ordering. The included timing shims let you index it correctly during install.
That's the whole point of the Plan-B design. It works as a standalone brake but also serves as a HUB-style mount for compatible Plan-B suppressor setups, so you can transition between suppressed and unsuppressed shooting. Keep in mind the mount is not licensed from Q, so confirm how that affects your specific suppressor's warranty before running a can on it.
The design shortens the length of the recoil cycle so the energy from one shot can't overlap with the next and push you off target. On the range that translates to a flatter-shooting rifle with less muzzle rise and quicker recovery between shots. Even on a mild cartridge like 6mm ARC, you'll notice the muzzle staying put.
Basic AR tools and a bit of patience are all it takes. The brake comes with a timing shim set to get it clocked straight, and LANTAC recommends a semi-permanent thread locker like Rocksett, which is sold separately, to keep it secure. If you've timed a muzzle device before, this is a familiar job.
| UPC | 614347600320 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | DGN6MMB-PBS |
| Length | 6.9500 |
| Model | |
| Color | Black |
| Caliber/Gauge | 6mm ARC |
| Product Type | Muzzle Brake |
You must be logged in to post a review.
Reviews
There are no reviews yet.