Description
The Allen ULTRX Shield is a no-nonsense passive earmuff built around one idea: cut the noise, skip the bulk. It carries a 23 dB Noise Reduction Rating and wears in an over-the-head style, so you get centered, stable coverage without anything fancy to fuss over. No batteries, no dials, no learning curve. You put them on and they get to work.
What Makes the ULTRX Shield Worth a Look
The headline feature here is the slim, contoured ear cups. Bulky muffs have a habit of bumping your rifle stock and knocking your cheek weld off center, which is exactly the kind of thing that ruins a group. The razor-thin profile on the Shield gives you a better shot at a clean, repeatable cheek weld with long guns while still sealing around your ears. The cups wear a rubberized exterior that shrugs off the usual range-bag abuse, and the padded, adjustable headband keeps things settled for extended wear.
Where the ULTRX Shield Navy Earns Its Keep
This one isn't just a range tool. The 23 dB rating and comfortable fit make it a sensible grab for yard work, running a mower, woodworking, or anything in the shop that gets loud. It's ANSI S3.19 tested, so the protection is the real deal and not just a number on the box. The navy finish keeps it low-key, and the whole thing folds down flat so it tucks into a bag or a drawer without eating up space.
For indoor ranges or shorter barrels where things get extra sharp, a lot of folks like to double up with a set of foam plugs underneath. On its own, though, the Shield covers the everyday loud stuff nicely and does it without complicating your setup. Simple, slim, and dependable is the whole pitch here, and it delivers on it.
Key Specifications
- Manufacturer: Allen Company
- Model: ULTRX Shield Passive
- Manufacturer Part Number: 4104
- UPC: 026509076698
- Product Type: Passive Earmuff
- Noise Reduction Rating: 23 dB NRR
- Safety Standard: ANSI S3.19 Tested and Certified
- Style: Over the Head
- Fit: Slim Fit, Low-Profile Cups
- Headband: Padded and Adjustable
- Exterior: Durable Rubberized
- Design: Foldable for Storage
- Color: Navy
- Units per Box: 1
What’s Included
- Allen ULTRX Shield Passive Earmuff (Navy)
Frequently Asked Questions
Is 23 dB enough hearing protection for the range?
For most outdoor shooting and general loud work, a 23 dB NRR does a solid job of knocking down the noise. If you're on an indoor range or running shorter barrels where the report is sharper, plenty of people pair the Shield with foam plugs underneath for extra coverage. That doubling-up approach adds a good margin of protection when things get really loud.
Will the ULTRX Shield work for shooting a rifle or shotgun?
Yes, and that slim cup design is a big part of the appeal. Bulky muffs tend to bump your stock and mess with your cheek weld, but the low-profile cups on the Shield give you a better chance at a clean, consistent mount with long guns. It still seals well around the ears while staying out of the way.
Does the ULTRX Shield need batteries?
No, this is a passive earmuff, so there's nothing to charge or replace. It relies on the physical cups and seal to block sound rather than electronics. That keeps it simple, dependable, and ready whenever you grab it.
Can I use these for yard work and the shop, not just shooting?
Absolutely. The 23 dB rating and comfortable fit make it a natural pick for mowing, woodworking, construction, and general shop noise. The foldable design also means it stashes easily wherever you keep your gear.




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