Decibullz Custom Molded Percussive Shooting Ear Plugs

  As shooters, we all know that good hearing protection is needed. Usually opting for over the ear style. Or most likely, amplified earmuffs so you can still hear other people talking, while cutting out the harsh noise of the gun shot. Sometimes the earmuffs can lift off your head slightly and now you have lost the benefit of them. Well, Decibullz has come out with a percussive filter, custom molded in ear, earplug.

  Decibullz had made standard moldable earplugs for a while. But they recently introduced their new Percussive Filter ones. The percussive filter cuts out harmful noise, while allowing you to still hear relatively normally. Not quite like the amplified muffs we are use to. These do not require any batteries! Granted, they won't amplify sound, but they also don't lift up when pressed against a rifle stock. When I asked how much noise reduction they have, Decibullz said they have a Noise Reduction Rating of 32, so 32 NRR. But at normal levels like talking, it is rated at 10 NRR. So what does this mean for you? Well, it basically means that you can hear normal voices, but they are a little reduced in volume. But on the other side, they do a great job at cutting out loud volumes like gunshots.

  Probably one one the best features of the Decibullz percussive ear plugs, is they are custom moldable. When the earplugs first arrive, they are kind of bean shaped. Don't worry, this isn't how they are used, you must first mold them. To mold the earplugs to the shape of your ear, all it takes is hot water. First remove the filter and set it aside. Install the orange tip onto the plug. Then just boil some water on the stove. Once it is boiling, take it off the burner. Toss in one plug only, as they can stick together if you put both in at the same time. Wait 5 minutes, remove the plug with a spoon and let rest for 30 seconds. Install the filter. Now press the plug, filter, and orange tip into your ear, pressing to form it to your ear. Let sit in your ear for 5 more minutes. Now your done with that ear, do the same for the other plug. If you mess up, don't worry, because you can just do the process over again to remold it. One of the only problems with these being moldable in hot water is that they can unform in high heat environments, like a hot car in the summer. But if this happens, just remold them. Decibullz has a very good video on molding the different model of plugs on their website.

  After wearing these for some time now, I can honestly say they are great. So good that I ordered a set of the standard ones also. If your worried about fit, don't be, they are really comfortable, even for extended periods of time. The plugs also come with a plethora of tips to fit different size ear canals. Also included is a neat little carrying bag to store the plugs in. While using these I didn't have any problem hearing normal conversations, even if the were muted a small amount. When shooting rifles, they allowed me to get a much better cheek weld than I normally get with my electronic muffs. They also did an excellent job cutting noise from short barreled rifles and compensated rifles, and we know those can be loud. For right now they only come in black. The ones they supplied me with are orange, as you can see. I would expect them to be offered in the same colors as the rest of their product lines. The orange is actually nice because it is easier for range officials to see that you have your ear protection on. 

  I mentioned ordering a normal set, since the moldable part is the same, I'll talk about a different experience. These were for my wife. After molding them, she was not really getting any noise reduction. She tried the different size tips and the foam tips as recommended on the Decibullz website, but that didn't seem to help. If you pushed on them, they would work. We tried to remold them, and even though they fit a little better, the plugs did the same thing and didn't block noise. After reading some of the reviews on Amazon, we decided that that her ears are small and/or narrow. There seemed to just be too much plastic to mold and get a good fit in her ears. Since all of the Decibullz products are one size, you might want to be cautious if you have small ears. Maybe Decibullz will offer sizes some time in the future.

  On a side note. The plugs are hard, not soft or rubbery. But since they are molded to your ear, they are still comfortable. Installing them in your ear is self explanatory. I found that when removing them from my ear, it helped to pull your ear lobe out of the way and then kind of pop them out. That's how well they stay in. But if you don't want the percussive filters, and just want standard plugs, they do not come with the plug insert

  At first I was reluctant at how these Percussive filter plugs were going to work. I have used other brands that were said to do the same thing and didn't. But the Decibullz work! I am so glad that they sent me out a pair, because I know that I wouldn't have probably purchased them myself. Like I said before, I even purchased a non percussive set. If you don't like ear muffs, but want to hear sounds around you without loud noises damaging your hearing, these are the ticket. Go give Decibullz a look, They also make headphones that are custom moldable.

Firearms Insider Reviews - 8 Key Points

Claim to Fame:

Custom molded noise cancelling earplugs

Target Market:

Shooters, hunters, or anyone around loud noises

FNBs (Features & Benefits of this product):

  • Custom molded  
  • Percussive filters
  • Remoldable
  • Work with other Decibullz products 
  • NRR of 32 db
  • NRR of 10 db under normal volumes  
  • Certified up to 166 db
  • Passive (no power needed)  

What other aesthetic options or finishes are available?

None as of now, only black, but the standard earplugs are available in Black, Blue, Orange, Pink, and Red

What others are saying?:

None found. Product is too new with the percussive filters

Link to other reviews:

Spotter Up

Wide Open Spaces

Price point:

MSRP = $74.99

Retail = $74.99 on Amazon

I need it now! Availability:

Amazon or Decibullz

Our Rating:


  • Easy to mold
  • Remoldable
  • Comes with lots of sizes and types of inserts
  • Super quiet
  • No batteries to go dead  
  • Ultra comfortable  


  • Some reduction in normal sound
  • Can melt or deform under high heat (like a car dash) 
  • Don't come with standard plug inserts 
  • Don't work well for smaller ears

Score: 7.0 Good


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