SIG P229 Magazine – .40 S&W / .357 SIG, 10-Round, Flush Fit (MAG-229-43-10)

A factory SIG SAUER magazine for P229 pistols chambered in .40 S&W or .357 SIG: 10 rounds, double stack, flush fit, black. SIG titles this the P229 .40 AUTO / .357 SIG 10-round flush-fit magazine. SIG part MAG-229-43-10, UPC 798681408931.

This listing is the P229 dual-caliber .40 S&W / .357 SIG 10-round magazine only.

Built for This P229

SIG lists this magazine for the P229 compact pistol, not as a generic “SIG mag.” Capacity is 10 rounds. Magazine type is double stack. Color is black. The product name on SIG’s own page is flush fit.

.40 S&W and .357 SIG

SIG’s spec table for this SKU is explicit: caliber is 40 S&W and 357 SIG. One magazine, those two P229 chamberings. If your P229 is one of those two, this is the 10-round factory mag SIG sells for it.

Stamping and Finish

SIG notes that its magazines are sourced from multiple manufacturers and then made to SIG’s specifications. Because of that, there may be slight differences in stamping and finish color from the photo. Function is the spec; cosmetics can vary a little.

SIG P229 10-Round Magazine Specifications

Frequently Asked Questions

Is this for .40 S&W or .357 SIG?
Both. SIG publishes this magazine for P229 pistols chambered in .40 S&W or .357 SIG.

Is it flush fit?
Yes. SIG’s product title is 10rd flush fit magazine.

Is this a factory SIG magazine?
Yes. It is SIG part MAG-229-43-10, listed on sigsauer.com as a SIG SAUER P229 magazine.

Why doesn’t the mag in the photo match the one in my other box exactly?
SIG states magazines are sourced from multiple manufacturers to SIG’s specifications, so stamping and finish color can differ slightly from the image.