20 Gauge to 327 18" Back

327 20 Gauge Shotgun Adapter

(19 customer reviews)


327 Shotgun Adapters for 20 Gauge Shotguns

Adapters come in 3 Lengths

5″, 11″ and 18″

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


20 Gauge to 327 Chamber Reducers

327 Shotgun Adapters allows a 20 Gauge Shotgun to use  5 Types of  Ammo.

327 Federal Magnum, 32 Long, 32 Short, 32 H&R Mag and 32 ACP.

For 3″ Or 2 3/4″ Chambers

327 Shotgun Adapters are compatible with Break Action single or double barrel shotgun.
Heavy Duty Steel Construction

Rifled with a 1:12 twist rate.

Rifled Dimensions:  6 Grove Bore .300  / Grove .312

Black Oxide Coated.
*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, 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.

If you like our 327 Shotgun Adapters , check out our other Shotgun Adapters

Additional information

Weight N/A
Dimensions N/A

5 ", 11", 18"

19 reviews for 327 20 Gauge Shotgun Adapter

  1. Charles Luther (verified owner)

    I am a repeat customer, well satisfied as before. Thanks for doing a good job.

  2. Richard Kulesza (verified owner)

  3. CHARLES (verified owner)

    Went to local gun range asap to shoot my new 18″ 20ga 327. Performed outstanding with reloads of 32acp, 32s&w, 32s&wLong, 32H&R and 327Mag in my H&R Model D088. I am very pleased with your product and your company should be too. Thank you.

  4. David Hillberry (verified owner)

    Easy communication and fast service, these adaptors are great bang for your buck and I will be ordering more from these folks in the future

  5. Gary A. (verified owner)

    I have not had a chance to use the adapter yet, but beautiful workmanship and great communitions.

  6. Weldon P. (verified owner)

    Beautifully made adapter. Good price and functions as it should. I will by from Chaszel again. Happy with my purchase. Thanks

  7. Don McCarty Jr (verified owner)

    outstanding craftsmanship and fits perfectly in my crescent 20ga double barrel. will be back to get some more when other calibers are ready. thanks

  8. james (verified owner)

    very best inserts I’ve ever used- well worth the wait! I will be looking to add some more in the future.

  9. Bob (verified owner)

    I haven’t used this yet but I’m sure it will do just fine.

  10. Phillip Reece (verified owner)

    This 18” fit perfect in my little Spanish SxS 20 gauge

  11. Charlie K. (verified owner)

    Works like a charm.

  12. Jay (verified owner)

    I am very happy with this barrel from Chazel it has been fun to use. It has made a shotgun I never used into a fun little gun! I have shot .32 auto, .32 wadcutters, 32 S&W longs, and 327 Federal Magnum in it. All with good accuracy! I would highly recommend Chazel!

  13. Frank (verified owner)

    I am slowly replacing all of my substandard adapters with the nearly perfect units from Chasel. Yes. They are that good!!!

  14. Robert M. (verified owner)

    High quality, precise machining and flawless finish

  15. Tony

    With the 20 gauge to 327 fed mag I have only got to try the 32 s&w and 32 long. Looking forward to the other 32s so far I like it .I am wondering if there is one for 17 hornet 17 hm2 17rem 17 Remington fireball or 22hornet

    • Chaszel (store manager)

      We are looking at both of those. Thank you for your feedback.


  16. Robert C. (verified owner)

    Always good service

  17. L (verified owner)

  18. Patrick Pierce (verified owner)

    Very satisfied. Should order one sooner.

  19. J. H. (verified owner)

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