Is This the Best Pistol Caliber Carbine on the Planet? Is This the Best Pistol Caliber Carbine on the Planet? Kris Osborn · November 17, 2019 Please leave this field emptyStay Updated with Warrior Maven Subscribe for daily military news and updates delivered straight to your inbox. We don’t spam! Read our privacy policy for more info. Check your inbox or spam folder to confirm your subscription.