PTI Tech identified and designed materials which would maintain the strength of the current hard pack magazine while significantly reducing the noise generated when a partially expended magazine was rough-handled. The interface with the weapon utilized a rigid, glass-filled nylon. The magazine body was manufactured by over-molding the interface with a sound-absorbing thermoplastic elastomer (TPE). Additionally, PTI Tech developed a cover made from the same TPE that was strong enough to not dislodge during five-foot drop-testing. The look and feel of the new design matched that of the M249 200 RD hard pack, already familiar to warfighters, for seamless adoption.
