ProMag SIGA16 15rd Extended Magazine for Sig P229

The ProMag SIGA16 Standard 15-round extended magazine is a serviceable replacement or spare for Sig Sauer P229 pistols. It uses a heat-treated steel body with an injection-molded follower and a spring formed from chrome-silicone wire. Made in the USA, this magazine is intended to provide extended-capacity feeding for compatible P229 pistols.

Key Specifications

• The capacity is 15rd.
• The finish is Oxide.
• The material is Steel.
• The model designation is Standard.
• Designed to fit Sig Sauer P229.
• This is an Extended magazine configuration.
• Manufactured by ProMag.
• Features an injection-molded mag follower.
• Equipped with a spring formed from chrome silicone wire.
• Product origin: Made in the USA.

This magazine pairs durable steel construction with proven feed components for routine range use, training, or as a reliable spare. Its extended profile increases available capacity while retaining the proven mechanical elements found in service magazines, offering a straightforward option for shooters who prefer steel-bodied magazines with factory-style followers and springs.