Home / Accessory-Kits / Chiappa Firearms X-CALIBER 4 SET 20GA ADAPT KIT Sale! Chiappa Firearms X-CALIBER 4 SET 20GA ADAPT KIT$20356 Original price was: $20356.$18298Current price is: $18298. Out of stock 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 J FRAME $895 Sale! Springfield Armory HELLCAT 3.8″ THREADED BARREL $19999 Original price was: $19999.$15230Current price is: $15230. Sale! Barrett Firearms MRAD CONVERSION KIT 308WIN 24″ $1,67500 Original price was: $1,67500.$1,54543Current price is: $1,54543. Springfield Armory HELLCAT HARDWARE MOUNT KIT $799