Magazine Base Plate Stop Spring (Mag Part No.417) For KWA HK417 GBB Rifle Category_Bolt Cover but it lost the competition

but it lost the competition to the M14 rifle

Die-Casting Aluminum Frame with Full Steel Rear Chassis Parts

Color: Gold

Item Weight (gram) 740 Major Color 2 Tone Length 216mm Barrel Length ~110mm Blow Back Yes Hop-up Adjustable  Shooting Mode Semi-Automatic Magazine Capacity 26 Rounds Bullet Type 6mm BB Pistol Power Source HFC134a Gas Power (Muzzle Velocity) 290 FPS (Top Gas Test @ 25°C Room Temperature) Manufacturer Tokyo Marui / TMGas  Package Includes (1) Marui M92F Silver Slide GBB Airsoft Pistol

in order to have more ability to adjust for different shooting distance

Magazine Base Plate Stop Spring (Mag Part No.417) For KWA HK417 GBB Rifle Category_Bolt Cover but it lost the competition