Quoted:
Check out the Beretta Forum. This guy Ric is reproducing the famous SGS Italian compensator. You use your original standard 4.9" barrel.
They look like this.

http://img.photobucket.com/albums/v88/viper1357/Berettas/SGS1764.jpg

The originals sell for $400 plus. He is going to be selling them half that.

Read the whole thread over there before posting any questions. You will most likely find your answers in the posts already made.

Since you are going to try this on your M9A1 with an accessory rail, you would need to remove more material on the wings of the compensator to fit the dustcover on the frame. This was discussed towards the end of the thread.


http://www.youtube.com/watch?v=zlbSDqa5DtU&feature=related

The OD of the wings or tabs on one of my original SGS compensators is approximately .985". The OD of the wings on the samples of the new compensator is the same since the new compensators are made to the exact dimensions as the original. The OD of the dust cover on my Vertec with the built in rail is approximately .860". Therefore, you have a difference of approximately .125" or .0625 on each side or wing to work with. For those of you who have been following the discussion of the "gap", I don't see any reason why we could not go over the "average" OD of a Vertec or G-SD or M9A1 dust cover by .008" and provide you with a finished compensator that should fit on your Vertec style frame with the built in rail "as is" right out of the box and in theory not have to be fitted. The wings or tabs would be fairly thin, a little less than one half of the normal fitted size of the wings on an SGS style compensator, but the wings should still work as intended to prevent any rotational movement of a "properly installed" compensator around the vertical axis of the frame.

Quoted:
Hey Viper. I didnt think you would mind.