The Best Home Defense Gun

The video begins with the instructor emphasizing that calling 911 should be the first action in a home defense situation, recommending putting the phone on speaker and sliding it across the room to keep hands free while maintaining communication. He then tests four different weapon platforms by shooting through constructed interior and exterior wall mock-ups to evaluate penetration and safety for family members in adjacent rooms. The pistol, while effective with 9mm hollow points, is dismissed because most people won't put in the training time required to become proficient. The AR-15 with 77-grain Black Hills ammunition shows concerning over-penetration, going through both interior and exterior walls and potentially hitting innocent people beyond. The instructor specifically criticizes green tip ammunition as ineffective despite its armor-piercing reputation. The shotgun with double-aught buck also over-penetrates and poses accuracy issues when family members might be near the threat. His top recommendation is the Sig MPX pistol caliber carbine with 9mm hollow points, which penetrates interior walls but stops at the exterior wall's drywall layers. He advocates for suppressors to reduce noise trauma for family members, weapon-mounted lights for target identification, and red dot sights for ease of use. The instructor concludes by testing an AK-47 round, which also shows problematic over-penetration characteristics.