Accessory Rail Connector (ARC) AdaptersLeft and Right Guide Arm Attachments for Mounting the Headset,  3M PELTOR Brand is a respected global leader in hearing protection and communication solutions. With production facilities in several countries including the US, 3M PELTOR supplies both traditional over the ear and innovative in-ear solutions to industry worldwide as well as elite tactical military teams and law enforcement. The PELTOR brand is built tough for the working professional.