Amazon.com : bbtac m21 airsoft 260 fps metal spring pistol with working hammer and saftey grip(Airsoft Gun) : Metal Spring Bb Gun Automatic : Sports & Outdoors
Tokyo Marui M8000 Cougar HG Air HOP Handgun, For Ages 18 and Up, Original Spring Inclusion : Sports & Outdoors - Amazon.co.jp
Amazon.co.jp: LayLax Recoil Spring & Guide Tokyo Marui Gas Blowback M92F Series Samurai Edge Tactical Master : Hobbies