The Silencer Cookbook

Ranb Suppressors

Page 1 of 4

The baffles are what make the supppressor work. Attaching an empty can to the muzzle does little to muffle the report. Using only one baffle makes a signifigant differance in the noise level. As in creating a sculpture, the trick is to start out with a piece of bar stock and cut off everything that does not like a baffle. Easier said than done. Here is how I did it. The shaded area is the bar stock waiting to be cut away. The left-hand portion of the bar stock is the end held in the work holding chuck.

Start with squaring off the bar stock. The back of the baffle must be perfectly square to ensure it fits against the spacer or end cap properly.

Next turn down the bar stock until it is the proper dimension to fit into the suppressor tube. This is also important to get just right. Turning down to about 0.003 to 0.005 inches less than tube inside diameter should work well.

http://www.geocities.com/kaiya_bird/makingabaffle.htm?200524

3/24/2005

Ranb Suppressors

Page 2 of 4

Cut metal from the front bearing surface. This cut needs to be square to ensure the baffle seats straight against the spacer. The outside diameter of the conical portion of the baffle is not the same as the inside. To determine the correct outside (X2) dimension based on inside diameter (X1), baffle angle, and baffle thickness (Y1, Y2), use this

Excel File.

Drill a hole a bit deeper than the length of the baffle using a drill bit attached to the tailpiece. Make sure the hole drilled is smaller than the final inside diameter of the baffle. Drill bits generally will not make the hole in the center.

Use a 60 degree reamer to cut away enough metal from the inside of the baffle to allow easier access with a tool bit to finish the back of the baffle.

http://www.geocities.com/kaiya_bird/makingabaffle.htm?200524

3/24/2005

Ranb Suppressors

Page 3 of 4

Finish squaring off the inside of the baffle with a tool bit. This portion of the back of the baffle should be left thick enough to stay in shape when held in the work holding chuck while the outside of the baffle is turned. Reduce the thickness of this part of the baffle as the last step.

Use the reamer to finish removing metal on the inside of the baffle.

Remove the baffle from the work holding chuck and cut off the left portion of the bar stock.

Mount the baffle into the chuck with the finished portion of the baffle in the jaws then use a 30 degree cut to finish removing metal from the outside of the baffle.

http://www.geocities.com/kaiya_bird/makingabaffle.htm?200524

3/24/2005

Ranb Suppressors

Page 4 of 4

Use a tool bit to center and widen the front hole to the proper size.

Trim the remaining metal from the tip of the baffle.Trim the remaining metal from the tip of the baffle.

http://www.geocities.com/kaiya_bird/makingabaffle.htm?200524

3/24/2005