Description
When you want the most protection SureFire packs into an earplug, the EP10 Sonic Defenders Ultra Max is the one to reach for. These full-block plugs carry a 30 dB Noise Reduction Rating, the highest of any Sonic Defenders model, so there's no filter letting sound through. That makes them a smart pick for the range, industrial work, or any loud setting where hearing conversation isn't the priority and you just want your ears covered.
What Sets the EP10 Ultra Max Apart
The secret is in the tips. Each earplug uses soft memory-foam Comply Canal Tips that expand inside the ear canal for a near-custom seal, blocking out harmful noise while staying comfortable enough for all-day wear. Backing that up are SureFire's patented EarLock retention rings, which use seven contact points to hold the earpieces securely and seat them the same way every time. Once they're in, they stay put.
The body is built from a soft, hypoallergenic, medical-grade polymer that won't irritate sensitive skin, and the low-profile shape sits nearly flush with your ear. That means you can run them under a helmet, under a set of muffs for doubled-up protection, or with a mask or hat without them getting in the way. Folks who shoot rifles tend to appreciate that they don't crowd the stock the way bulky muffs can.
Getting the Most Out of Your Sonic Defenders
These are reusable, not throwaway plugs. With proper care and storage, a pair holds up for six months or more, and the foam tips can be swapped out whenever they start losing their softness to keep the seal fresh. This medium size fits most people, and the included lanyard keeps them handy around your neck between uses. Simple, effective, and easy to carry in a pocket when you're on the move.
Key Specifications
- Manufacturer: SureFire
- Model: EP10 Sonic Defenders Ultra Max
- Manufacturer Part Number: EP10-OR-MPR
- UPC: 084871323345
- Noise Reduction Rating (NRR): 30 dB
- Style: Full-Block
- Filter: No
- Tips: Memory-Foam Comply Canal Tips
- Retention: Patented EarLock Retention Rings
- Material: Hypoallergenic Medical-Grade Polymer
- Size: Medium (fits most)
- Color: Orange
- Quantity: 1 Pair
- Reusable: Yes, six months or more with proper care
What’s Included
- 1 pair SureFire EP10 Sonic Defenders Ultra Max earplugs (left/right)
- Extra pair of Comply memory-foam canal tips
- 26-inch attachable/detachable lanyard
- Carrying case
Frequently Asked Questions
What is the NRR on the SureFire EP10 Sonic Defenders Ultra Max?
The EP10 carries a Noise Reduction Rating of 30 dB, the highest of any Sonic Defenders earplug. It's a full-block design with no sound filter, so it uses solid stems and expanding foam tips to block as much noise as possible. That makes it a strong choice when maximum protection matters more than hearing ambient sound.
Can I wear these under ear muffs or a helmet?
Yes. The low-profile design sits nearly flush with the ear, so you can double up with a set of muffs for added protection or run them under a helmet or mask. This is a popular setup for indoor ranges or heavy industrial environments where extra suppression is welcome.
How long do the Sonic Defenders Ultra Max earplugs last?
With proper storage and care, a pair will typically hold up for six months or more. The memory-foam Comply tips are replaceable, so you can swap them out whenever they start to lose their softness and keep the seal working like new.
Will I be able to hear conversations while wearing the EP10?
Not well, and that's by design. Unlike SureFire's filtered models, the EP10 Ultra Max is a full-block plug meant for situations where hearing voices or ambient sound isn't a priority. If you need to stay tuned in to conversation, a filtered Sonic Defenders model would suit you better.





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