PROMAG Sig Sauer P320 9mm 20 Blue Steel Magazine (SIG-A22)

The PROMAG Sig Sauer Magazine is what you need. Featuring heat-treated steel construction with a corrosion-resistant blued finish, this aftermarket mag is built for unmatched durability and long-lasting dependability in the field.

An injection-molded polymer follower combines with a heat-treated chrome silicone wire spring to provide reliable and smooth feeding every time in fast-action and target-rich environments.

Also, this magazine is backed by a lifetime warranty from ProMag so you can enjoy years of reliable field use.