There is no better training aid for at home use than an Airsoft handgun. All major shooting schools are now offering actual man on man airsoft classes, that's how important it is. This is the ultimate gas blowback Airsoft gun! This is a full metal KWA gas blowback with semi and full automatic firing feature. (KWA is the U.S. branch of KSC which replaces the plastic slides with trade-mark violation with a full metal slide!) The recoil spring of this gun, slide and barrel are upgraded and full metal! Unlike the KSC stock version, you can use green gas on this gun for higher power! Of course, since KSC and KWA are pretty much the same company, all the after market upgrade parts, slides and accessories are 100% compatible. (Unlike the KJW and other leading brands, KWA/KSC have TONS OF UPGRADE PARTS available on the market.) Also, this gun fires full automatic (you hold the trigger down and it will fire continuously until bb or gas run out. Asking $85.00 (Retailed $144.99). This gun is in used but excellent condition and comes with one magazine. Paypal or USPS money ordewr only and buyer pays actual shipping charges. Thanks!