Cybergun / Swiss Arms Licensed SG556 RIS Airsoft AEG amped QBS spring system allows for

QBS spring system allows for easy spring changes without needing receiver disassembly

Front and rear slide serrations

and performance of AAP-01

Includes a metal under rail to attach lasers or lights

Cybergun / Swiss Arms Licensed SG556 RIS Airsoft AEG amped QBS spring system allows forFully licensed by Swiss Arms with laser engraved trademarks Heavy duty metal alloy receiver assembly with metal barrel assembly Lightweight polymer furniture (pistol grip, stock) Adjustable length of pull M4 style tactical stock CNC aluminum quad rail handguard for mounting tactical accessories Full length Picatinny rail for optics Ambidextrous fire selector (safe semi auto) Tokyo Marui compatible Ver3 metal gearbox Rotary style hopup FPS: 370