DoubleTap Ammunition Bonded Defense, 9MM+P, 124Gr, Jacketed Hollow Point, 20 Round Box 9MM124BD A very versatile load for your 9mm. Whether for CCW or home defense, the 9mm+P 124gr Bonded Defense will perform. Boasting 13.25" of penetration and .72" of expansion, this bonded bullet easily defeats common barriers (Auto Glass, Sheet Metal, Drywall/ Studs, Heavy Clothing, Etc.) while maintaining nearly 100% of its weight and without over penetration.