Installing a Universal Muzzlebrake


Installing the Universal Muzzlebrake (#7129) or Straight Shooters Muzzlebrakes on Beeman's R Series Airguns.

The Beeman Universal Muzzlebrake is not only good looking but functional as well. Their weight on the end of the barrel helps eliminate barrel flip when shooting. In addition, the shape provides a good handle to grip when cocking your air rifle. Note: It is not designed to be a moderator and any suppression of noise is totally coincidental.

The Muzzlebrake is easy to install. The installation process requires just a few minutes of time and some common household tools. Of course if you happen to have a specialized sight puller, we would recommend using it for removing the front sight. However, most shooters do not have access to a front sight puller, so we've written our instructions for installing your new muzzlebrake under the assumption that specialized equipment is not available. At Straight Shooters we take the common sense approach to what we do whenever possible.

Here's what you'll need:
1) A rubber mallet. If you do not have a mallet then a common hammer will do nicely.
2) A small piece of softwood
3) A couple of old rags to wipe off the barrel and help protect against scratches.

Getting started
The first step is to remove the standard front sight. Your sight will come off in one of two ways. If your gun is a R1, RX-2, R9, R7 or any gun where the front sight sldes forward off the front of your barrel., simply loosen the holding screw and tap it forward. Your sight will slide off the front of the barrel.
NOTE: If your rifle is not a Beeman R series, determine which direction the front sight slides off the barrel. Example: If the front sight sits above the barrel on an "A" frame looking arrangement and has a screw in its side, it will probably slide off the front...or if the sight sits on the barrel and has a little round baseplate it will probably slide off the side of the barrel. Once identification of the sight type has been completed, you can start the removal process.

Removing the front sight - front mounted
Picture #1 shows how to remove the sight from guns on which the sight slides off the front of the barrel (R1, RX-2 etc.). Loosen or remove the screw from the side of the sight*. Place a small piece of softwood such as pine or a 2"x4" against the back of the sight. Gently tap the wood with your mallet and the sight will slide off the front of the barrel. Tapping lightly will do the job.

Removing the sight off the front of the barrel
Picture 1 - front mounted sight
Removing the front sight - side mounted
If your front sight slides off the side of the barrel (older R7's, see picture #2), lay the gun on its right side. Be sure to put something under the barrel below the sight so it can't move downward. Place a piece of softwood on the base of the sight and tap with your hammer (see picture #3). Be careful not to place the wood directly on the hood of the sight. Direct the energy of your hammer taps to the base of the sight. You may need to give your sight several light taps before it moves (see picture #4). Take care not to tap too hard and damage the barrel.


Picture 2 - side mounted sight

Picture 3 - tapping of the sight

Picture 4 - The sight is almost off

Fitting the Muzzlebrake
Once your sight is removed, you will need to fit the muzzlebrake to your barrel. The Universal Muzzlebrake and the Straight Shooters Muzzlebrakes are tapered on the forward end to be self centering and stop the muzzle brake before reaching the crown of your air rifle. Once installed the muzzlebrake will extend the barrel length by about an inch.

The opposite (open) end which slides onto the barrel may need one of the 2 shims supplied with the muzzlebrakes to provide the best fit. If the muzzlebrake seems loose when you slide it on the barrel, try using one of the enclosed shims fill in the gap. If you need to use one of the shims, start by sliding the shim onto the barrel to approximately where the muzzlebrake will come to a stop (see picture #5).

Turn the shim so the split faces the top of the barrel. Turn the muzzlebrake so the allen set screw is on the bottom of the barrel. Slide the
muzzlebrake up onto the barrel and over the shim. Push any uncovered part of the shim into the muzzlebrake so it sits flush with the end of the muzzlebrake. Tighten the allen screw and the job is finished (see picture #6).


Picture 5 - shim installed on the barrel

Picture 6 - tighten the allen screw and you are done
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