Key differences include: Long strand glass reinforced nylon provides all the durability and impact resistance of our Mod-2 mags, but with increased stiffness and temperature resistance. Enhanced aesthetics and texturing provide excellent grip without compromising smooth reloads. While still maintaining the 2 on the baseplate, the Mod-3 sports muted branding to blend in more in a duty environment. FEATURES: 30-round magazine. 300 Blackout compatibility. Sturdy, impact-resistant polymer with textured grip. 4 way anti-tilt, self-lubricating follower. Heavy-duty, non-memory, and non-corrosive stainless steel spring. Made in the U.S.A. Material able to cerakote and laser.