By David Crane defrev at gmail dot com April 18, 2009 Updated on May 6, 2009 Airtronic USA, Inc. has more up their sleeve than just an Americanized RPG-7 rocket-propelled grenade launcher. They’ve also got a pretty nifty 4-shot (3+1) pump-shotgun-config pump-action 40mm multiple grenade launcher (MGL) (a.k.a. multi-shot grenade launcher) system a.k.a 40mm pump grenade launcher system. The weapon …

by David Crane david@defensereview.com Back in October, DefenseReview reported on the Cavalry Arms CAV-15 MKVII polymer lower receiver for AR-15/M16 rifles. Well, Calvalry Arms Corporation also makes AR15 buttstock adapter systems/M1913 Picatinny rail optics mounting platforms for the Remington 870 shotgun (pump-action) and Mossberg 590 shotgun (pump-action) that allow the operator to attach an AR-15/M16/M4/M4A1/CAR-15 telescoping/retractable stock. The adapter system …