20ga to 9mm text

9mm 20 gauge Shotgun Adapters

(25 customer reviews)

$19.95$99.95

9mm Shotgun Adapters for 20 Gauge Shotguns

Adapters come in 4 Lengths

2 3/4″ 6″, 11″ and 18″

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

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Description

9mm Luger Shotgun AdaptersAll Products

9mm Luger Shotgun Adapters Allow a 20 Gauge Break Action Shotgun to use 9mm Auto / Luger 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 20 gauge shotguns.

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

9mm Luger Shotgun Adapters Rifle dimensions are .355″/.349″ with 6 lands and .125″ wide.

 

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.

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
Length

2 3/4", 6", 11", 18"

25 reviews for 9mm 20 gauge Shotgun Adapters

  1. Randall Weinley (verified owner)

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    Would love to buy other calibers when available.

  2. Anonymous (verified owner)

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  3. david s. (verified owner)

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    Good

  4. Paul Hodges (verified owner)

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    Excellent quality

  5. Robert S. (verified owner)

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    Initial test on the range was very promising. Looks to be an excellent addition as part of a “9mm” carbine project on a slug gun.

  6. Anonymous (verified owner)

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    Ya’ll did great, the Post Office, well thats another story. Can only imagine what their priority might be.

  7. Paul H. (verified owner)

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    The adapter was a top notch quality. A perfect representation of the USA made quality product. Chad, the support rep, was quick to respond to all of my inquiries. I will absolutely make more purchases in the future and highly recommend to my family and friends.

  8. James Shingleton (verified owner)

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    Super , I really like this item

  9. steven briggs (verified owner)

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    Item came in good time and was well packaged.
    Adapter fit nice and snug, I haven’t shot it yet but when I do, I’ll give a review on that. That being said, I will be looking forward to buying one for my 16 ga.

  10. Frank Jennings (verified owner)

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    absolutely delighted with both design and execution !!

  11. MATTHEW BUVALA (verified owner)

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    I RECEIVED THE ADAPTER TIMELY. I’M USING IT IN MY OLD SAVAGE MOD 24 RIFLE. IT WORKS PERFECT. CAN’T WAIT FOR THE 9MM FOR 12 GA COME COME BACK IN STOCK.
    THANK YOU
    MATTHEW

  12. John S. (verified owner)

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  13. Anonymous (verified owner)

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    Have not used them yet, but feel tight in gun…glad they are blued and marked with calibre’s….may buy some 12’s, 28, and .410 adapters soon…..Thanks….I like them..Great Price…..!!!!

  14. Richard Newell (verified owner)

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    Quality workmanship. Great fit. Good accuracy. For a small investment, I transformed my shotgun into a 9mm rifle, yet it retained the characteristics of my original scattergun.

  15. Anthony P. (verified owner)

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    I am very pleased with the accuracy of my Chaszel shotgun adapter. The extra cost for this 18-inch adapter is well worth it. It stirred much interest at my local gun range.

  16. Jacob (verified owner)

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    Great products, fantastic customer service, quick shipping. Will buy more!

  17. Chuck (verified owner)

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  18. Douglas (verified owner)

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    I ordered the 11 inch 9mm insert for use in my 22 year old NEF 20 gauge shotgun. Order fulfillment and shipping were fast. I tried the insert out at 25 yards using 115 grain 9mm ammo. All shots were within 4 inches and were to point of aim. I have a fiber optic front sight on my shotgun which improves aiming but also reduces accuracy a bit. I am quite sure I would have better accuracy with a better sight on my shotgun.

  19. Cleaver (verified owner)

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    Another great piece. It is far superior to other similar products I have seen.

  20. John Adams (verified owner)

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    Received the adapter on time and in excellent condition, the quality of the adapter is second to none, excellent workmanship straight bore, crisp rifling, easy extraction of adapter and cases, i have a half dozen or so of these adapters and they’re all excellent.

  21. Anonymous (verified owner)

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    Great quality product. Looking forward to other items as they become available.

  22. William Trader (verified owner)

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    Very accurate out to 100 yrs.

  23. Paul R. (verified owner)

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    I have the shortest 20ga-9mm and it actually shoots plenty accurately enough to secure game or in other scenarios.Great quality quick shipping and a company that stands behind their products made in USA what else could you want…

  24. Mark (verified owner)

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    Great simple way to modify a firearm. Must have for a bugout scavenger gun.

  25. Bill Bieszk (verified owner)

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