Chaszel Overall 11" View

44 Mag 12 Gauge Shotgun Adapters

(12 customer reviews)


44 Caliber Shotgun Adapters for 12 Gauge Shotguns

Adapters come in 3 Lengths

5″, 11″ and 18″

All Adapters are Fully Rifled with a 1-20 Twist.

Select Length and Chamber below: 


44 Mag Shotgun Adapters

44 Mag Shotgun Adapters Allow a 12 gauge Break Action Shotgun to use 44 Magnum as well as 44 Special Ammo.

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

Comes with multiple O-ring configurations.  As a result,  easily achieving a good fit for 20 gauge shotguns.
Rifle dimensions are .429″/.417″ with 6 lands and .107″ wide with a 1:20 twist rate.
Black Oxide coating as a result provides notably better corrosion protection (for maximum corrosion protection keep a thin coat of oil on the insert)
I recommend to keep a coat of oil on the insert for more corrosion protection


Please Note:  Not all shotguns are the same!  While most shotgun are capable of handling high pressure rounds such as the. On the other hand some are not.   Therefore only use these rounds in shotguns that are capable.  For example, a shotgun with a SB1 or Sb2 reciever.  I recommend on any shotgun to test the first shot in a vice while out of harms way in addition  always wear eye and ear protection.  After that if you see that the primer punctured in the round discontinue using this round and use the less powerful round. Such as a 38 Special instead of the 357 Mag These high pressure rounds include: 45-70 gov., 357 Mag, 327 Shotgun Adapters , 44 Mag Shotgun Adapters, and 22 Hornet.  Please always be safe and aware. Thank you for reading.


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.


However, not all shotguns are capable of handling all of the shotgun adapters we offer. Low-pressure rounds work in any shotgun, whereas high-pressure rounds can cause problems in some shotguns. The problem is when the firing pin punctures the primer. This event causes the gases to escape and possibly damage the firing pin. All adapters chambered for high-pressure rounds have red text on the website, signifying that is is a high-pressure round. These adapters also include a pamphlet with more information about this concept. In addition These Shotgun Adapters also have a Low-Preasure round alternative.


44 Magnum 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 for more calibers, so you can sign up to be notified here. Thank you for your interest.

Additional information

Weight N/A
Dimensions N/A

5, 11, 18


Black Oxide, No Finish (Silver)

12 reviews for 44 Mag 12 Gauge Shotgun Adapters

  1. Robert G. (verified owner)

    Verified reviewVerified review - view originalExternal link

    Great value

  2. Jeffery F. (verified owner)

    Verified reviewVerified review - view originalExternal link

    Purchased for my Hatfield survival gun. This 11″ sits inside the barrel at most times. Secondary use is as a baton. Really great quality all around.

  3. Rick H. (verified owner)

    Verified reviewVerified review - view originalExternal link

    Great product! Lightning fast shipping!

  4. Mark (verified owner)

    Verified reviewVerified review - view originalExternal link

    This adapter is extremely well made. It was shipped with extra O rings, instructions and coupon. It fit perfectly into my shotgun. My best friend has the same exact adapter for his shotgun and he already fired his. It is very accurate! I love the customer service too!

  5. kenny

    best inserts on the market best thing is you get alot for little money ..thats what makes these so desirable best price best selection of calibers ..hands down the very best quality i ever seen i will only buy these inserts as the others are over price an in pistol calibers …. i love my 45-70 insert far more then the deer around here do…..

  6. Michael M. (verified owner)

    Verified reviewVerified review - view originalExternal link

    Another great product and another perfect buying experience. My order was shipped fast and securely packaged.

  7. john morton (verified owner)

    Verified reviewVerified review - view originalExternal link


  8. Miguel Morales (verified owner)

    Verified reviewVerified review - view originalExternal link

    i was under the impression it would be longer.

  9. NATHANIEL D. (verified owner)

    Verified reviewVerified review - view originalExternal link

    Excellent product! You can tell the people at Chaszel take pride in their work! Works perfectly and it was just as described. Very fast shipping. This is exactly what I like about small AMERICAN owned AMERICAN ran businesses! Keep up the good work and God bless.

  10. Anonymous (verified owner)

    Verified reviewVerified review - view originalExternal link

    I only gave it a 4 because I have yet to use it. Out of the box it has the same quality as the other Chaszel adapter I own (a 12 gauge to 9mm) which has performed flawlessly.

  11. john (verified owner)

    i shot 1in group at 60 yards with 8.3 grains of unique 240 gr. swc it works vary good

  12. john (verified owner)

    works well 4.3 of unique 240 gr swc 1 in group @ 60 yards. 18 in adapter

Add a review

Join Waitlist We will inform you when the product arrives in stock. Please leave your valid email address below.