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Picking one muzzle device usually means choosing between recoil control and flash suppression. Precision Armament built the EFAB (Enhanced Flash Arresting Brake) to skip that tradeoff. It runs a set of diverging expansion nozzles that diffuse and cool the gas coming out of the muzzle, so you get the recoil and muzzle rise control of a brake alongside flash hiding that leaves an A2 birdcage in the dust. This is the 5.56/.223 version with 1/2×28 threads, machined from heat treated 416 stainless and finished in a high temperature Ionbond CrCN coating that holds up to serious heat and round counts.
The magic is in the internal passage work. Heavy duty baffles and a continuously webbed core handle the pressure while the venting is angled off-axis to keep the rifle settled through fast strings. One detail folks really appreciate: the bottom is fully closed, which keeps you from blasting dust into the air and giving away your position when you're shooting from the prone. On short barrels and pistol builds where flash and concussion are normally brutal, this thing earns its keep. Precision Armament rates it for barrels as short as 10 inches.
This is a standard 1/2×28 thread, so it drops right onto most 5.56 and .223 barrels. One thing worth knowing up front: Precision Armament specifically says not to use a crush washer with this brake. Their Accu-Washer alignment system is the recommended route for getting it timed and square, so plan on picking one up if you don't already run one. There's also a pre-drilled pilot hole built in, which makes permanent pinning a 14.5 inch barrel much easier for anyone going that direction.
Feedback from folks running it has been strong across short and standard barrel lengths alike, with a common theme being how much tamer a 5.56 feels with one threaded on. If you want one device that genuinely does the job of two, the EFAB is one of the better hybrids on the market.
It's both, which is the whole point of the hybrid design. The EFAB uses diverging expansion nozzles to cool and diffuse gas, giving you real recoil and muzzle rise reduction like a brake while still suppressing flash better than a standard A2 birdcage. It's a solid pick when you don't want to compromise on either job.
This version is cut for 1/2×28 threads, which is the standard pitch for 5.56 NATO and .223 Remington barrels. It will drop onto the vast majority of AR-15 pattern barrels in that caliber.
No. Precision Armament specifically warns against using a crush washer with this brake, since it can throw off alignment. They recommend their Accu-Washer alignment system to get the device timed and squared up correctly, so plan to use that for installation.
Yes, that's actually where it shines. Precision Armament rates the EFAB for barrels as short as 10 inches, and users running it on short carbines and pistol builds report big drops in flash, concussion, and muzzle rise. The closed bottom also keeps dust down when firing prone.
| UPC | 810112080537 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | A04484 |
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