Named after the Grasshopper Mouse" a small" yet savage carnivorous rodent living in the Southwest United States; it is famous because of its favorite snack - Scorpions - and is immune to their venomous bite. The GHM is a cost-effective" competition-oriented PCC featuring many of the same great qualities that made the APC9 so successful" while providing the user with additional levels of flexibility and modularity. The Gen 2 allows users to change barrel lengths" handguards and stocks" as well as the ability to add an SD kit" among other accessories. Like many B&T SMG's" the GHM9 accepts all APC9 PRO lower receiver groups" meaning it can be equipped to accommodate Glock magazines" SIG P320 magazines or proprietary B&T magazines" by simply switching the non-serialized lower receiver group. All GHM9s ship as pistols and include a magazine and flip-up back up sights.