The Swiss manufacturer Brügger & Thomet has confirmed they are working on an Advanced Police Carbine in .300 Whisper. The rifle is expected to arrive in early 2014 .
Positive cross-compatibility aside,
in many non-U.S. countries outside the USA, the .300 BLK or AAC Blackout hasn’t caught on as a replacement to the .300 Whisper name. Europe has had its own parallel development of the wildcat round. Ammunition is currently being made for them in-country by RUAG using 5.56 virgin casings. I consider this further proof the appeal and popularity of the cartridge isn’t losing momentum.
The APC family currently includes the following production or prototype models.