Marauder Semi-auto power tune mods

I did this and it did the auto air dump, but it left some pressure on the plenum side of the regulator. When releasing the valve assembly it pushed it out and locked up as I removed the last holding screw. Some heavy down pressure with a rod while releasing the screw worked to free it up. I made a de-gassing tool today to push on the hammer weight and dump through the barrel.

View attachment 132279
Can I buy that degassing tool. I have Armada Semi-Auto, latest edition.