Guarder SP150 Infinite Torque-Up Kit for Marui AK-Beta Hamdguard the bolt lock release button

the bolt lock release button pops outward for visual confirmation that the magazine is empty

G&P M4/M16 130rd Ball Ball Mid-Cap AEG Magazine (Black)  Ball Ball Series Magazine  Made of Polymer Fiber Housing  For those who don't like the low capacity standard AEG Magazine

Zinc Alloy & Steel Alloy  350mm Outer Barrel with 85mm Flashider  265mm Metal Folding Stock  295mm RAS Handguard  Adjustable Front & Rear Sight  Steel Housing magazine accommodate 90 Rounds of 6mm Plastic Bullet  Come With Nylon Fiber Foregrip and PEQ-15 battery case  6 mm Bearing Ver

SKU GE-04-10 Item Weight (gram) 30 Major Color Silver Built Material S303 Stainless Steel Manufacturer Guarder Hop-up N/A Shooting Mode N/A Gearbox Type N/A Fit Battery Pack N/A Bullet Type N/A Pistol Power Source N/A

you can remove the 'stock' to reveal a quick change spring system which was very thoughtful of ARES

Guarder SP150 Infinite Torque-Up Kit for Marui AK-Beta Hamdguard the bolt lock release buttonA complete kit includes ALL parts for upgrading your Airsoft Electric Gun AEG Guarder made this kit with all suitable parts to super tune up your AEG Rifle The combination of difference parts allow an optimal result & performance Hard and rigid material used, including S303 Stainless Steel, Brass, Polycarbonate, Aluminum, Acetal and Steel As always, upgrading AEG require necessary skill & technique to dissemble the gearbox, consult expertise if needed