10mm
- PRO2A 5.5" 10mm 1/16 Pistol Caliber NR Side Charging Melonite Upper - MP5 StyleSpecial Price $639.99 $699.99
- PRO2A 5.5" 10mm 1/16 Pistol Caliber NR Side Charging Melonite Upper with Flash Can - MP5 StyleSpecial Price $659.99 $709.99
- PRO2A 8.5" 10mm 1/16 Pistol Caliber NR Side Charging Melonite Upper - MP5 StyleSpecial Price $669.99 $739.99