Wolverine Gen-12 MTW Magazine Combo Packages is a device that looks

is a device that looks like a real grenade

T-Eagle ER 1-6X24

which can count every tooth of the gear

8 Series Airsoft Gas BlowbackFeatures:

Wolverine Gen-12 MTW Magazine Combo Packages is a device that looksThis magazine is a 1: 1 replica of the Genesis Arms Gen 12 Shotgun magazine specifically built for the MTW, featuring Empty Mag Detection and a 140 round capacity. Details Fits 308 lower receivers Empty Mag Detection capable Approximately 140 round BB capacity High quality Dupont Zytel Polymer construction No winding, no rattling mid cap magazine High efficiency compression spring Compatibility MTW M4 MTW 9 MTW 308 MTW Shotgun