KSG Vs BULLPUP UNLIMITED KIT with Mr.YacYas. Hank Strange gets this question all the time: “Which One Should I Buy? the Kel-Tec KSG or the Bullpup Unlimited Kit for the Mossberg 500?” Mr.YacYas and Hank Team up to help the Gun Folks on Full30 decide what’s the better Pump Action Bullpup Shotgun?