Home / Accessory-Kits / Chiappa Firearms X-CALIBER 4 SET 20GA ADAPT KIT Sale! Chiappa Firearms X-CALIBER 4 SET 20GA ADAPT KIT$20889 Original price was: $20889.$18748Current price is: $18748. In stock Chiappa Firearms X-CALIBER 4 SET 20GA ADAPT KIT quantity Add to cart SKU: 970.435 Category: Accessory-Kits Product ID: 34297 Description Description 4 Set Adapter System 20 ga.9mm-357/38-45ACP-410/45Colt Related products Wilson Combat SPRING KIT S&W K/L/N FRAMES $1495 Sale! Barrett Firearms MK22 BARREL 300NOR 26″ COYOTE $1,67500 Original price was: $1,67500.$1,54543Current price is: $1,54543. Sale! Springfield Armory HELLCAT 3.8″ THREADED BARREL $19999 Original price was: $19999.$15230Current price is: $15230. Sale! Del-Ton RIFLE KIT M4 5.56MM 16″ $45000 Original price was: $45000.$40673Current price is: $40673.