ProMag magazines are made in the USA and backed by a lifetime guarantee against manufacturer's defects. Magazine springs are precision wound using heat-treated chrome silicon wire and each and every step of the assembly process is checked and double checked in order to maintain the same consistent level of quality.

Features :

• 40 - Round Capacity
• Heat-Treated Chrome Silicon Wire Spring
• Manufactured & Assembled in the U.S.A.
• Easy Loading
• Rugged Construction