King Arms SIG556 Shorty Blowback AEG L1A1 Compatible with AEG Hop-up bucking

Compatible with AEG Hop-up bucking ( High Accuracy )

Can you see the Engraved MAGPUL Logo monogram on the Pistol grip and fore grip

etc  -Adjustable Front Sight  -300 rounds Loading Capacity Manual Winding Drum Magazine  Adjustable HopUp is located next to the ejection port cover  Fixed Stock allow installation of KA 8

1 Series Gas Blow Back GBB Pistol

King Arms SIG556 Shorty Blowback AEG L1A1 Compatible with AEG Hop-up buckingTactical 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,