Sig Sauer P228/229 9mm 15RD Magazine
SIG SAUER P228 and P229 15 round magazine chambered in 9mm, NOT E2. Anti-Friction Coating. This is a factory magazine that is designed for the P228 9mm and P229 9mm versions with the smaller magazine well.
If your current magazines are stamped P229-1, this magazine will not fit correctly. You need the magazine listed here: Sig Sauer P229-1 E2 9mm Magazine