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ACB Introductory Fabrication Model ACB 5 Trumpet Mouthpiece

(3 reviews) Write a Review
MSRP: $99.99
(You save $24.00 )
1.00 LBS
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Product Overview

Introducing the Austin Custom Brass Fabrication ACB 5 Trumpet Mouthpiece

After hearing from many clients, educators, students, and fans of ACB comments asking for a great introductory mouthpiece for folks on a budget I'm extremely proud to be able to announce the newest development in the Austin Custom Brass series of Mouthpieces, the ACB 5!

The only reason I can sell these at this price is the fact that I am ordering literally hundreds of them at a time. This way in no way is the quality compromised to "cut corners" and save money. These are still made here in the US with the best tolerances that you can buy!

I am offering a mouthpiece I've designed for the mass population out there. I know most of my line is totally customized for the clients. This mouthpiece is going to be offered in silver plate, in the unique (only available in this piece)  blank that optimizes resistance and projection to work wonderfully for the developing trumpeter.


  • Silver Plated
  • Unique  "ACB" blank (mixing my ultra-light and Modern blanks) optimized for ideal response in conventional equipment
  • .650 inner diameter
  • medium c/d hybrid bowl shape with blended entrance into throat (a great efficient cup shape without it being shallow)
  • #26 Throat
  • custom medium sized backbore

This mouthpieces will most definitely make your students and your own playing "Ahead of the Class"... only available here at Austin Custom Brass!


Trent Austin

Owner and Designer

Austin Custom Brass, LLC




Call the Mouthpiece Hotline with questions or to place an order! +1-781-816-9664

If you have additional questions send us an email

Prior to ordering please check our Shipping and Returns policy.

Also note weight indicated in the ad is shipping weight not actual weight of item.


(3 reviews) Write a Review

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  • 5
    The Perfect 5C Alternative

    Posted by Alan on 17th May 2016

    Plays better than a 5C, much more comfortable rim, slightly shallower than a 5C but not as shallow as a D cup. The 26 drill really opens this piece up. Somewhat reminds me of the old Severinsen Jettones but with better rim and more open cup. You can bring down a wall with the core this thing puts out. I also have To mention how great ACB is. The piece was shipped as soon as I ordered it.

  • 5
    ACB Fabrication 5: too generic a name for such an amazing mouthpiece!

    Posted by Ray Callender on 6th Jan 2014

    I've been playing exclusively on ACB mouthpieces for several years now, starting out on an ACB 3C before moving to Trent's 3CS model. I've been a bit curious about his Fabrication line since they first came out and happened to find a Fab 5 in like new condition for really cheap so I decided to give it a shot. Boy, am I glad I did. Immediately I felt like my sound just had more life to it and more efficient, something about the custom throat/backbore that Trent designed on this piece is perfect for the way I play. Also, the custom blank is just heavy enough to give you a warm and broad sound but light enough to remain responsive and ringing in all registers. Don't worry that the mouthpiece is called a "5," the diameter is stated as .650 which is the same as the ACB 3CS. Without question, the Fabrication 5 is one of the best values on the entire market, under $70? I've recommended this to several students coming off a Bach 7C or 5C and they all love it. 5 enthusiastic stars!!!!!!!!!

  • 5
    Recent Review of the ACB 5

    Posted by GregPLo on 9th Jan 2012

    From "My ACB 5 arrived yesterday, and I had an opportunity to play it at my Concert Band rehearsal tonight. I haven't been able to put much time into playing lately due to family "stuff," so my chops are a bit out of shape. In my opinion, Trent has a real winner in this mouthpiece! The rim is very comfortable, and the undercut of the cup allowed my lips to buzz even when I got tired. The cup is slightly deeper than my Curry 7M, but it didn't affect my (limited) range. I find that the ACB 5 seems to provide a very small bit more resistance than the Curry 7 pieces, which seems to work well for me. I detect a bit of "V" at the bottom of the cup? I was able to produce a beautiful singing tone when playing a solo of "I've Grown Accustomed to Your Face," but was also able to brighten up the sound when needed. The ACB 5 is far better for me than either the Bach 7C or Bach 5C. I'm going to continue playing this piece to get a better feel for it as my chops get back in shape. Trent...Thank you! Great mouthpiece! Any plans on a slightly shallower ACB 5 model for those times when brighter is better?" user GregPlo Thanks Greg for the great review!