What many might consider the all-star of personal defense weapon calibers, 5.7x28mm has cemented itself as a greatly effective round with less recoil than 5.56mm at closer ranges. With just a 5″ barrel this ultra-compact BANSHEE will fit almost anywhere you need it. If you’re not fond of pistol magazine-fed ARs don’t worry, this BANSHEE is built on CMMG’s Mk4 – AR15 platform which uses a standard AR15 lower receiver and CMMG’s new and improved 5.7x28mm AR conversion mags.