Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Chiappa Firearms X-Caliber 12ga/44mag Gauge Adapter Insert
$73.99 $59.99 Save 19%
View Product
Compare (0)
Most Helpful Positive Review Great Conversion
Meets all expectations. Very well pleased with this product. Fits all my breach loaders, reloads easily, ejects smoothly. Many thanks to Optics Planet ! I couldn't find this adapter available anywhere else. Highly recommend !
Show
Sort by
Filter by

12 guage adapter

by Mike, Verified Owner from NY, United States Written on January 25, 2026
With cartridge adapters the single shot and double barrel shotgun is the most versatile firearm you can own. The fit and finish of the product is excellent. I highly recommend you supplement your single and double barrel shotgun with these adapters.
Would recommend: Yes
Was it helpful to you? Yes | No

Works great

by David Sikes, Verified Owner from NM, United States Written on August 29, 2025
I was worried this wouldn’t fit in a Stoger standard coach gun This gun has 12 ha barrels 20” long one barrel improved cylinder the other modified choke both frixed chokes but I just got my coach gun and the adapter fits great. And yes I have two adapters in .44 spec and magnum so now I have a double barrel that shoots not only any type 12 ga from mini shells to 3 inch magnum but also .44 mag and special
Would recommend: Yes
Was it helpful to you? Yes | No

Works great

by David Sikes, Verified Owner from NM, United States Written on August 29, 2025
I was worried this wouldn’t fit in a Stoger standard coach gun This gun has 12 ha barrels 20” long one barrel improved cylinder the other modified choke both frixed chokes but I just got my coach gun and the adapter fits great. And yes I have two adapters in .44 spec and magnum so now I have a double barrel that shoots not only any type 12 ga from mini shells to 3 inch magnum but also .44 mag and special
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Im satisfied with it.

by Grumpy, from MA, United States Written on January 28, 2022
Im a big fan of anything 44mag. So turning my shotgun into a mid length barrel revolver was for me. However some of my sigle shot / double barrel shotguns don't except the adapter. Mostly older ones & ones that are 2 3/4 only. So something to think about when buying.
Would recommend: Yes
3 of 3 found the following review helpful.
Was it helpful to you? Yes | No

Works great

by Lee, from TX, United States Written on March 22, 2019
Well made. Fits secure in the barrel of my H&R Topper. If you plan on accuracy out to or over 50 yards you better plan on some sort of red dot, as the shotgun bead ain't gonna do it. With bead sight it groups about 4 inches but I'm about blind so take that for whats it's worth. I am very happy with the adapter, it gives new life to my old shotgun. Would definitely recommend because sometime things just need a 44 caliber hole in them.
Pros:
  • Price and versatility
Cons:
  • None
Best Used for:
  • Putting big holes in things
Would recommend: Yes
3 of 3 found the following review helpful.
Was it helpful to you? Yes | No

Great conversation

by Thomas, from TX, United States Written on August 5, 2018
Fits in every shotgun I own, haven't used it in my semiautomatic. Fits in my pump action, but you have to remove the barrel to put it in and have small fingers to smoke the spent case. A paint bucket key works great. 8in rifled allows for accurate shots. Just waiting for them to come out with rifle conversation.
Best Used for:
  • hunting
Would recommend: Yes
3 of 4 found the following review helpful.
Was it helpful to you? Yes | No
There are no reviews that match your criteria. Would you like to review this product?