Board Thread:General Nerf discussion/@comment-27323706-20180914071846/@comment-27306930-20180916025532

Take care with that 9kg spring. The plastic Hasbro used for the Stampede plunger tube is starting to get brittle with age. I've shattered a tube with a 6kg spring and insufficient padding.

So if you go for the 9kg, pad the heck out of the plunger head and maybe consider leaving the AR in place. I opted for the metal gear kit too, but have yet to install it because the stock gears are still performing well.

Please post pics when you upgrade it !