BULLPUP Series ERMOX BULLPUP SERIES create a more tactical mag-fed shotgun. It’s smaller overall than most shotguns on the market but packs a solid punch thanks to its ability to retain a longer barrel even with a shorter stock. Features include an AR-platform style charging handle, adjustable cheek riser, and rails that are both Picatinny and M-Lok. The gun ships with a trio of choke tubes, removable open iron sights, and 2-5-10 round magazine. A 20-round DRUM MAGAZINE is available as an aftermarket purchase.