improve reliability and suppress bolt bounce by using two springs for recoil verses the traditional single spring

- Increase operating speed and improve efficiency

Muzzle Velocity: 290 - 300 FPS (w/ 0

4 modular backstraps & reversible enlarged magazine catch

metal keymod handguard and a selector switch with a heavy duty detent that gives the user tactile feedback when changing fire modes

Angel Custom 1500 Round Thunderstorm Electric Winding Drum Magazine (Color: Dark Earth / M4 Adapter) hk45 improve reliability and suppress boltFeatures Strong electric winding motor is powered by a single 9V battery High speed winding at the push of a button Compact design doesn't alter weapon profile. Ribbed body improves loading and unloading manipulation Constructed from lightweight and heavy duty USA DuPont polymer material, exported to Taiwan specifically for molding these magazines Compatible with Firestorm mag adapters for various AEG platforms Optimized internal design provides