12ga to 45 ACP Shotgun Adapter - Chamber Reducer 18" Long

12ga to 45 ACP Shotgun Adapters

45 ACP Shotgun Adapters Allow a 12 Gauge Break Action Shotgun to use 45 ACP ammo. For 3″ as well as 2.75″ Chambers

Compatible with Break Action single as well as double barrel shotgun.

Comes with multiple O-ring configurations.  As a result,  easily achieving a good fit for 12 gauge shotguns.

Finger Grooves for easy extraction of spent casings.

Black Oxide coating as a result provides notably better corrosion protection (for maximum corrosion protection keep a thin coat of oil on the insert)

Rifle dimensions:  .451″/.445″ with 6 lands and .145″ wide with a 1:14 twist rate