Hearing Protection M4-SD 6″ Suppressor

Hearing Protection LLC's new M4-SD is a 6" / 18…

Hearing Protection LLC’s new M4-SD is a 6″ / 18 ounce 5.56mm suppressor that snaps onto standard A1/A2 NATO Flash suppressors and provides 28DB sound signature reduction. The M4-SD is compatible with barrels down to 10.5″ in length and is available for $550. GriffinArmament.com.

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