The MPX Essentials Kit is the perfect package to compliment your new MPX purchase. The kit includes 3 30rd 9mm magazines and one tan triple retention magazine pouch. The magazines have a black follower and are designed for what is commonly referred to as a "Gen1" MPX. If your MPX shipped with magazines that have tan followers it is suggested to purchase the "Gen2" magazines with tan followers. 100% reliability with a "Gen2" MPX is not guaranteed.