A quick presentation by Destockage Games on the G&G Piranha SL Gas Blowback Pistol that they have in stock... "Here is the G&G Armament PIRANHA SL airsoft gas blowback pistol (GBB) ? Available in two colors, black and silver, this imposing looking PA has 120 different positions allowing you to adjust your hop-up. This model has 'whirl cylinder' technology, which has the effect of reducing the cool down effect on your replica! This SL version of the famous Piranha is composed of an extended barrel, a split breech, a picatinny rail and an additional magazine with visible BBs."