Muscle Pharm’s limited edition Fight Stack consisted of four miniature supplements from the brand. 20 serving versions of Assault, Amino1, Armor-V, and ZMA Max which is now Z-Core PM. Whether or not it is due to the success or failure of the overpriced Fight Stack. Muscle Pharm retailers are beginning to show up with the 20 serving size products that were produced specifically for the limited edition box set. The formulas might be going on sale to increase the range of each supplement. However that argument seems a bit invalid considering the flavors on offer for each of the half-supply variants are the exact ones from the Fight quadrilogy. Of the four items from the combo, the one that seems to have the most justification in the 20 serving availability is Armor-V. While Amino1 and Assault already have smaller and bigger options on the shelf, and Z-Core PM really needs it’s entire dose. There will be users who make use of the 120 pill vitamin, especially those who do not require the full 6 capsule serving size Muscle Pharm recommend.