All gamo airguns offer an all weather synthetic, molded stock with butt pad and cheek piece, breaking barrel, single cocking system, precision smooth bore steel barrel, manual safety, Viper Express Shotgun offers a bull barrel with full vent and smooth bore, bead front sight, 3.74 lb trigger pull, weighs 5.5 lbs, and a 43" length, uses Gamo .22 Shotshells or Pellets for ammunition. Order SKB-608 Shotshells. Order# 25209 Pellets. The Viper Express has a velocity of up to 750 fps with lead pellets GAMO USA produces and inspects each component of their airguns and produce all their own metal parts for the airguns to ensure a perfect shot every time you fire your airgun. High quality wood is used for the stocks, the wood is shaped by fully computerized machinery in order to create a perfectly weighted air rifle. GAMO USA is the world leader in top quality, accurate ammunition and airguns. No Return Allowed Warranty repair handled by Gamo. Call Gamo at 954-581-5822 It is illegal for minors to purchase airsoft guns. You must be 21 or older to purchase this item.