Chiappa X-Caliber Adapter Set for 12 Gauge Break-Open Shotguns

The Chiappa X-Caliber Adapter Set for 12 Gauge Break-Open Shotguns (Chiappa Firearms part number 970.387) turns a single-shot or break-open 12 gauge into a platform for shooting popular centerfire pistol cartridges. Chiappa designs this adapter system to insert into any break-open action 12 gauge barrel, giving hunters, plinkers, and survival-gun owners a way to run pistol-caliber ammunition through a shotgun they already own. It is a practical way to add versatility to a break-open 12 gauge without buying a second dedicated firearm. The set is built as a complete accessory kit, ready to use once matched to the correct chambering for the intended cartridge.

Key Specifications

• Built to fit any break-open action 12 gauge shotgun barrel.
• Classified as an Accessory-Kit, part of Chiappa’s Adapter system for 12GA barrels.
• Chambered for 12 gauge host shotguns.
• Measures approximately 10.3 inches in overall length.
• Allows the shotgun to fire popular centerfire pistol cartridges instead of shotshells.

Frequently Asked Questions

What kind of shotgun does this fit? Any break-open action 12 gauge shotgun.

What does this adapter let me shoot? It allows the shotgun to fire popular centerfire pistol cartridges instead of standard shotshells.

Buy the Chiappa X-Caliber Adapter Set

Add real versatility to your break-open 12 gauge with the Chiappa X-Caliber Adapter Set. Order it from our Chiappa Firearms lineup of other shotgun accessories and parts and our Lubbock, Texas team will get it shipped out quickly.