Can the BFG-50A be used with a suppressor?
We don't recommend it. The BFG-50A isn't currently available with an adjustable gas block, which is necessary for reliable cycling with a suppressor. Also, when your muzzle brake is installed at the factory it has red loctite threadlocker applied to it. This makes it extremely difficult for a shooter to remove it themselves.
That being said, we've had more than a few customers suppress their BFG-50As with mixed results regarding the cycling. If you intend on suppressing your BFG-50A, consider asking for the red loctite to be replaced with blue at the time of order. If you already have a BFG-50A with loctite on the muzzle brake, please see the question below. The threads on the muzzle are 1.00 - 14.
Serbu Firearms has an adjustable gas block currently in development for future use on a BFG-50A, but its completion/release date is uncertain.
How do I remove the muzzle brake?
Removing the muzzle brake from a BFG-50, RN-50 or BFG-50A is simple enough, but you must be careful. The brake is mounted using red Loctite and a jam nut, and both the brake and jam nut must be heated to cause the Loctite to melt. A temperature a bit over 500 degrees Fahrenheit is required to cause this, and a propane torch is a good choice for the job. Care must be taken with the torch because too much heat can actually affect the temper of the steel, but that doesn't start to happen until about 800 degrees. The torch should be moved around so that you're applying heat 360 degrees around the entire brake and jam nut. It's best to clamp the gun or barrel in leather-wrapped vise jaws, but be sure if you're clamping the barrel that you're far enough from the muzzle so you're not in danger of burning the leather. A good telltale that you've reached the proper temperature to break the Loctite is a small puff of smoke that will come out around the area being heated. It's easily missed, so it's a good idea to just try wrenching off the jam nut at fairly regular intervals. Once you've found you've melted the Loctite be sure to unscrew both the brake and the jam nut right away, as the Loctite will harden again after cooling off a bit.