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Chaszel 12 Gauge to 380 Shotgun Adapter 2 3/4" Long

380 12 Gauge Shotgun Adapters

(1 customer review)


380 Auto Shotgun Adapters for 12 Gauge Shotguns

Adapters come in 3 Lengths

2 3/4″, 11″ and 18″

All Adapters are Fully Rifled with a 1-12 or 1-18 Twist Rate.

Select Length elow: 
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380 Shotgun Adapters for 12 Gauge Shotguns.

380 Shotgun Adapters Allow a 12 Gauge Break Action Shotgun to also use 380 Auto Ammo.

Compatible with 12 gauge Break Action single and also double barrel shotgun.

Heavy Duty Steel Construction

2 Viton O-Rings As a result,  easily achieving a good fit for 12 gauge shotguns.
380 Shotgun Adapters have Rifle dimensions of .355″/.349″ with 6 lands and .125″ wide with a 1:12 twist rate.

What are Shotgun Adapters?

Shotgun Adapters frequently called Chamber Reducers or Shotgun Barrel Inserts. Our shotgun adapters allow you to use other types of ammunition in a Break Action Shotgun. Including double barrel and over and under double barrels in addition to the popular single barrel break action. We offer several different versions to suit your preference in ammunition, as well as length. 12 and 20 Gauge shotgun adapters are our most popular adapters followed closely by the 410. 16 Gauge is something we plan on expanding in the future.


380 Shotgun Adapters

Most of our shotgun adapters come in different lengths to suit your needs. Some like the secure storage and portably of Shell length adapters. Whereas some are looking to get the most fps (feet per second) or accuracy out of their adapter. Black Oxide has become our standard finish. We can offer unfinished adapters during our production if you have requested one.

FPS (Feet Per Second)

As a general rule, the longer the adapter, the more FPS it produces. However, with low-pressure rounds such as the 45 colt, the fps difference is minimal. If you are interested, here is an excellent website that gives a good idea of fps per inch BBTI. All of our shotgun adapters are entirely made in the United States and are an affordable addition to your break action shotgun. Thank you for you interest in our Shotgun Adapters or Chamber Reducers. We are working to make more adapters for more calibers, so you can sign up to be notified here
The video below gives a brief demonstration of how they work.

We are working to make more adapters.In addition to more calibers, so you can sign up to be notified here. Thank you for your interest.

If you like our 380 Shotgun Adapters, check out our other Shotgun Adapters

Additional information


2 3/4", 11", 18

1 review for 380 12 Gauge Shotgun Adapters

  1. Jeffery F. (verified owner)

    Perfect for my scavenger single shot shotgun setup.

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