CMMG BBL 300BLK 16.1" MR 4140CM SBN Night Vision & Thermal Optics 6 small flutes for weight

6 small flutes for weight reduction and heat dissipation

this ammunition delivers devastating energy transfer and excellent accuracy

screws & hex wrench

5 shot size provides excellent pattern density for breaking clay targets at various distances

CMMG BBL 300BLK 16.1" MR 4140CM SBN Night Vision & Thermal Optics 6 small flutes for weightUpgrade your AR 15 platform with the CMMG 16. 1" . 300 Blackout Multi Role Barrel. This precision engineered barrel is designed to maximize the potential of the . 300 Blackout cartridge, offering exceptional accuracy and versatility for various shooting applications. Crafted from 4140CM steel with a Salt Bath Nitride (SBN) finish, it ensures superior durability and corrosion resistance. The Multi Role (MR) profile provides an excellent balance between