King Arms SIG556 Shorty Blowback AEG

Tactical RAS Railed HOLO Handguard for 556 Shorty  - 7mm Bearing Gear Box with Brand New Designed Bolt Carrier Operating Mechanism  - One Piece Metal Outer Barrel  - Ambidextrous Selector  - Railed Flat Top for scope and red dot sight  - Stylish Flip-Up Front Sight & Low Profile Flip-Up Rear Sight  - 135 Rounds SIG556 Nylon Fiber Magazine (Also compatible with M4 / M16 Magazine)  - Compatible to Other Brands Reinforce Parts (Except the Piston & Nozzle)  -Trademark of SAN, Licensed by Cybergun  - Constructed of 6065 Aluminum Alloy Body, Nylon Fiber SKU KA-AG-23 Item Weight (gram) 3050 Major Color Black Length 670mm / 750mm (Extended) Hop-up Adjustable Shooting Mode Semi/Fully Automatic Gearbox Type 3 Blow Back Yes AEG Power Source 7.4V Lithium Battery Fit Battery Pack Mini / Handguard (Nickel / Li-Po) Barrel Thread Type Clockwise