Warne, Magazine Extension, Fits S&W M&P 9/40, +5/+4, Black
- Fits S&W M&P 9/40
- Machined from 6061 T6 aluminum billet
- Type 2 hardcoat anodize finish for abrasion and corrosion resistance
- Torx head screw and washer for retention
- Designed and made in the USA