ProMag SIGA16 15rd Extended Magazine for Sig P229

This replacement or spare magazine is compatible with the Sig Sauer P229 and is designed for reliable feeding and service use. It features a heat-treated steel body with an oxide finish and an injection-molded magazine follower. The magazine spring is formed from chrome silicone wire and the unit is manufactured in the USA. Intended as a durable extended option for shooters who need added capacity and robust construction.

Key Specifications

• The capacity is 15rd.
• The magazine body is constructed from Steel.
• The finish is listed as Oxide.
• The product type is Extended.
• Designed to fit model P229.
• Brand compatibility is listed as Sig Sauer.
• The manufacturer model is Standard.
• The follower is injection molded.
• The mag spring is formed from chrome silicone wire.
• This magazine is made in the USA.

Built for dependable service life and everyday carry scenarios where extra rounds and durable construction matter, the SIGA16 extended magazine offers a straightforward, no-nonsense upgrade for P229 owners. Its heat-treated steel body and robust spring/follower setup prioritize consistent feeding and long-term durability while the oxide finish helps resist wear. Whether holding a spare magazine for range sessions or adding capacity for practical use, this ProMag unit delivers a simple, effective solution that complements the P229 platform.