Systema ENERGY Spring Guide with Bearing Ver. 3 reg_CZ Rifle Grenades were widely used

Rifle Grenades were widely used in World War 2 and is widely used by Europe

Large thumb dial Integrated winding wheel on bottom for speed reloading

Clip-to-clip mechanism allow multiple magazine clip together without any tool

With Stock Pad

Suitable for KJ Works KP-07 MEU Series Airsoft Gas Blow Back GBB Pistol

Systema ENERGY Spring Guide with Bearing Ver. 3 reg_CZ Rifle Grenades were widely usedSystema ENERGY Spring Guide with Bearing Ver. 3 With Ball Bearing Designed to minimize the load on the motor caused by the spring torsion especially when compressing custom springs A side effect of this ball bearing system actually resets the spring more effectively as well