SUREFIRE Sonic Defender EP4 size:M Removable custom fit EVA insole

Removable custom fit EVA insole

and spill resistance

small caliber patches for

and extends to the front of the shotgun receiver (5 inch rail)

padded shoulders for added comfort

SUREFIRE Sonic Defender EP4 size:M Removable custom fit EVA insoleEP4 Sonic Defenders Plus protect your hearing without interfering with your ability to hear routine sounds or conversations. Their triple flanged stem design fits larger ear canals 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 a special noise reducing filter. EP4s include