The Middle Aged Gamer checks out the APFG/VFC MCX Rattler GBBR which he upgraded in this video... "If there's one upgrade to make to the APFG Rattler then its the inner barrel, as promised in the review i have replaced the stock inner barrel with a 138mm Maple Leaf Crazy Jet, so lets see how much of an improvement it really is.

"'Spoiler Alert, it is a massive improvement'"