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.
- 20-round extended magazine
- Fits Sig Sauer® P226™ .40 S&W® and .357 SIG™ pistols
- Magazine body constructed of heat treated steel with black oxide finish
- Injection molded magazine follower
- Magazine spring formed from heat treated chrome silicone wire
- Made in USA
