SureFire EarPro EP3 Sonic Defenders | Earplugs for Hearing Protection

$12.49 $5.00
(You save $8.95 )
(55 reviews)
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SureFire EarPro EP3 Sonic Defenders | Earplugs for Hearing Protection


SureFire EP3 Sonic Defenders protect your hearing without interfering with your ability to hear routine sounds or conversations. Their double-flange-stem design fits most people and provides a Noise Reduction Rating (NRR) of 24dB. Sounds, at safe levels, are allowed to pass through into the ear canal, while potentially harmful noises (above 85dB) are reduced via a proprietary design that incorporates the patented Hocks Noise Braker filter. EP3s include attached stopper plugs, which can be inserted for further protection and blocking out lower-level noise, like that heard on a plane, where hearing ambient sounds or conversations isn't critical. The right/left color-coded Sonic Defenders are made from a soft but durable, hypoallergenic polymer and are ergonomically shaped, with an adjustable-stem design, providing a secure fit, all-day comfort, and extended product life (3 to 6+ months, depending on usage and care). And their low-profile design means they can be worn while wearing a helmet or mask, or while using a phone or headset. Available in clear or black.

Comfortable EP3 Sonic Defenders also serve as earpieces for EarPro by SureFire and other compatible radio communication systems*simply by removing the Hocks Noise Braker filter and attaching the earpiece to the system. NOTE: EP3 earpiece no longer provides hearing protection once the Hocks Noise Braker filter has been removed.

EP3 Sonic Defenders are sold as a single left/right set or in a box containing 25 sets. Each set is packaged in a convenient carry case and includes a polymer lanyard.

EP3s are available in small (S), medium (M), and large (L). Proper size is based on the dimensions of your ear's concha bowl. Size "medium" fits most people; however, to ensure the best possible fit, review the earpiece sizing chart provided. For those with larger ear canals, the EP4's three-flange stem may provide a better fit than the EP3's two-flange stem.

* RADIO COMM SYSTEM COMPATIBILITY: Thales: Covert Security Harness; Harris: Security Force Communication Set; Motorola: Surveillance Kits; Tactical Command Industries: Tactical Earpiece Products; Peltor: Lightweight Systems-Hearplug; Silynx: C4Ops Headset

[NSN: 6515-01-549-6448, 6515-01-549-6453, 6515-01-549-6457]


  • 24dB Noise Reduction Rating (NRR) with stoppers inserted
  • Lowers potentially dangerous noise levels above 85dB
  • Hear safe sound levels (with stoppers out) as if you weren't wearing ear plugs
  • EarLock by SureFire retention ring utilizes seven contact points to lock earpiece in place and fit the same way every time; soft, double-flange stem provides secure seal and all-day comfort.
  • Made from hypoallergenic, medical-grade polymer that's soft, durable, and long-lasting
  • Low-profile design allows you to keep them in place while wearing a mask, helmet, hat, or while using phone, headphones, or supplemental hearing muffs
  • Serve as earpieces for EarPro by SureFire and other compatible* radio comm systems
  • 26" polymer lanyard included


  • 5
    Great Ear Pro

    Posted by Jason Harada on 24th May 2021

    SF EP3 has always been my go to passive earpro. Arms Unlimited has great pricing and has always been on the spot with shipping!

  • 5

    Posted by Unknown on 29th Apr 2021

    You don’t even know they are there. Just fine for pistols. Haven’t used with a long gun yet.

  • 5
    SF EP3

    Posted by CW on 27th Apr 2021

    Great option to leave in your vehicle as a spare

  • 5
    Delivered as Promised

    Posted by Francisco Osuna on 12th Apr 2021

    The hearing protection I ordered from was exactly as advertised. Great product and good price. I will definitely be doing business again.

  • 5
    Fast shipping, item as described.

    Posted by Unknown on 3rd Apr 2021

  • 5
    fit my small ear holes

    Posted by stanleytx on 2nd Apr 2021

    I was a bit hesitant as the size was large, but hearing protection fit and stays put just fine.

  • 5
    Sonic defender earplugs

    Posted by Christina Castillo on 27th Mar 2021

    Have not tried them out yet I am hoping they workout great. Can never hear anybody talking. This will be perfect for that.

  • 5
    Very Comfortable

    Posted by Unknown on 30th Nov 2020

    Nice fit, easy to hear ambient noises while blocking loud ones.

  • 5
    Not enough S’s I’m smooth

    Posted by Casper-casper on 16th Nov 2020

    Another perfect and timely purchase