Mec-Gar MGP22910B: This magazine will fit newer Sig P229 and P229 E2 pistols with wider taper. It can hold up to 10-rounds of 9mm Luger. Note: It will not fit older P229 pistols with narrow flat sided magazines.
Caliber 9 mm - Fits newer P.229 and P.229 E2 pistols with wider tapered P229-1 magazine - Will not fit in older P.229 pistols with narrow flat-sided magaziner - Tube designed to improve functionality heat-treated for strength