[1240fps]

I just did this to my new A400 sporting. I was going to use the Graco but found some small tungsten weights used for soap box racing cars. Each weight is 1/2 of and ounce and quite small. They’re 1.7 heavier than lead. I used 12 pieces to add 6 ounces. I also added the “M” medium forearm weight which is about 4 oz. The stock forearm weight is only 1.4 oz. Theses changes added a little over 8 oz and the gun is well balanced.