410 to 9mm Chamber

9mm 410 Shotgun Adapters

(16 customer reviews)


9mm Auto or Luger Shotgun Adapters for 410 Shotguns

Please note:  Due to the required thin wall thickness we are not able to have O-rings on these adapters as we normally do.  If you have issues with accuracy we recommend using some Teflon (plumbers tape) to achieve a snug fit on the muzzle end.

Adapters come in 3 Lengths

5″, 10″ and 16″

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

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9mm Shotgun Adapters for 410 Shotguns

9mm 410 Shotgun Adapters Allow a 410 Shotgun to use 9mm Auto as well as Luger Ammo

Compatible with Single as well as Double Barrel Break Action Shotguns.

9mm Luger Shotgun Adapters Rifle dimensions are .355″/.346″ with 6 lands and .125″ wide.

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

Please be aware that the 16″ 410 adapters may not work in all shotguns, depending on the bore diameter.  Shotguns with tapered bores may not fit.  Due to the already thin wall it is not possible to make these adapters any smaller.

What is a tapered bore?
A tapered bore is exactly what the title implies. The diameter of the bore gradually tapers down from breech to muzzle. The amount of the taper is slight — perhaps one-thousandth to as much as two-thousandths of an inch; but at the time this service was performed, the measuring tools needed to accurately measure it weren’t commonly available. So, most of the makers didn’t actually know how much they were tapering their bores — just the fact that they were.

What are Shotgun Adapters?

Shotgun Adapters frequently called Chamber Reducers as well as 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.

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 once past the 11″ length. 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.


If you like this product, check out our other Shotgun Adapters

Additional information

Weight N/A
Dimensions N/A

5", 10", 16"

16 reviews for 9mm 410 Shotgun Adapters

  1. RUSSELL R. (verified owner)

    Works very well, accurate and consistent!

  2. Monroe (verified owner)

    Outstanding quality and fast service/shipping

  3. Kelly (verified owner)

    Fits perfectly in my Charles Daly .410 …

  4. Kelly K. (verified owner)

    It was stolen or lost in the mail, so I never received it,
    I’m still waiting for a resolution from the Postal Service.

  5. John Underwood (verified owner)

    Just right!!! Now, if you could make 410 to 22 magnum and 410 to 357 magnum !!!

  6. Ernest Beller (verified owner)

    The adapter appears to be very well made. I have already sent it off to be altered for .38 Short Colt, the modern .357 version, to use low pressure loads for bunny gun service, and centerfire plinking. It took 20 days after notification of shipping for it to arrive, not a timely delivery. I would be more pleased had I received a reply to my inquiry about the delay.

  7. Donald (verified owner)

  8. Forrest (verified owner)

    Arrived on time and in perfect condition. Easy to install and very accurate.

  9. Jody Vigness (verified owner)

  10. Chris R. (verified owner)

    Great job as always!

  11. Angela Brito -ALFREDO RENNE GONZÁLEZ RAMOS (verified owner)

    excellent product, my recommendation and satisfaction is 100% positive

  12. Anonymous (verified owner)

    I have never been disappointed in any of the shotgun adapters from this company. I have four 12 ga. adapters and all are over 18 inches long or longer in 357 mag, 44 mag, 3030 and 7,62 x 39 mm all from Cheszel. They are all of excellent quality. The machining is as close to perfect as any machined part I’ve seen. Flawless extraction after firing. I’m not saying casing won’t stick if you fire cheap ammo. However, I use on a small paint can opener and that all I ever needed with even steel cased ammo. I have an over and under and I put some nice sights on the rib and it’s my deer rifle with a 30/30 adapter on top and a 12 ga slug for on the bottom barrel. Much more accurate than I’m able to b and great deer stand deer rifle shotgun combo in the swampy underbrush where I hunt. Talk about a hog gun with the option of buckshot too. I’ve brought two mor single barrel shotguns just to turn them into rifles. That is the intention of why I bought 410 to 9mm x 19 mm Luger. I have a M6 Scout and when the weather is nicer. I’ll be on the range trying it out. I give an update in a few months. Until then be safe and happy shooting.

  13. Joseph Yankowich Sr (verified owner)

    Did not receive product as of 02/02/2024

  14. John Long (verified owner)

    Greet machine work clean rifling, the out side finish looks durable. Fits great in my new tps arm .357/.410 . Haven’t had a chance to field test. I’ll try to update on range time.

  15. Wyatt (verified owner)

    Excellent fit and finish. Dropped into all my 410 shotguns without issue. A remarkable piece of kit and worth every penny. Have purchased several adapters over the years and have always been impressed with the quality, accuracy, and customer service. Each item was well packaged and shipped out very quickly. I would not hesitate for a moment to recommend Chaszel to anyone who’s in the market for a sub-caliber adapter. If one becomes available that you are interested in, make sure to place your order ASAP, they don’t last long!

  16. Robert (verified owner)

    I apologize for the lateness of my review of the two .410 to 9MM and 327 16” adapters purchased earlier this month. I put it off until I was able to take them out for a test drive. I was afforded time to do so this morning, and I’m pleased to report they both shot flawlessly with at least three inches at a bit over fifty yards. I did have to wrap some Teflon around the muzzle on both adapters to stabilize them once they had heated up. Once cooled and reheated, they both performed as described, even after fifty rounds each. An unexpected plus was my Stevens ejected the cases on both without displacing the adapter. I must add that after waiting for two years for the adapters their performance was truly rewarding. results

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