Differential effects of suppressors on hazardous sound pressure levels generated by AR-15 rifles: Considerations for recreational shooters, law enforcement, and the military

  title={Differential effects of suppressors on hazardous sound pressure levels generated by AR-15 rifles: Considerations for recreational shooters, law enforcement, and the military},
  author={Edward Lobarinas and Ryan Scott and Christopher Spankovich and Colleen G. Le Prell},
  journal={International Journal of Audiology},
  pages={S59 - S71}
Abstract Objective: Firearm discharges produce hazardous levels of impulse noise that can lead to permanent hearing loss. In the present study, we evaluated the effects of suppression, ammunition, and barrel length on AR-15 rifles. Design: Sound levels were measured left/right of a user’s head, and 1-m left of the muzzle, per MIL-STD-1474-D, under both unsuppressed and suppressed conditions. Study sample: Nine commercially available AR-15 rifles and 14 suppressors were used. Results… Expand
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