Sig Sauer Guns and Accessories
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Shop For Sig Sauer:

Conversion Kits
P220 Conversion Kits
P226 Conversion Kits
P228 Conversion Kits
P250 Conversion Kits
AR-15 Upper Receivers

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Need assistance? Call us at 573-859-6044.

Please note this site is owned and operated by Osage County Guns. We are not the manufacturer, Sig Sauer.

P229 Conversion Kits

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Sig Sauer P229 9mm Caliber Exchange Kit 15rd
Price: $379.00
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Sig Sauer P229 .40 Caliber Exchange Kit 12rd
Price: $379.00
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Sig Sauer P229 357 Caliber Exchange Kit 12rd
Price: $379.00
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Sig Sauer P229 TB Conversion Kit 22 10rd
Price: $349.00
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Sig Sauer P229 22LR Conversion Kit 10rd
Price: $299.00
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Sig Sauer P228/P229 22LR Non-Rail Conversion Kit 10rd
Price: $299.00
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Sig Sauer P229 40 Elite Legacy Caliber Exchange Kit
Price: $299.00
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Sig Sauer P229 40 SAS Legacy Caliber Exchange Kit
Price: $299.00
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Sig Sauer P229 9mm Elite Legacy Caliber Exchange Kit
Price: $349.00
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Sig Sauer P229 .40 Caliber Exchange Kit - 10 RD Magazine (State Compliance)
Price: $379.00
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Sig Sauer P229 .357 Caliber Exchange Kit - 10 RD Magazine (State Compliance)
Price: $379.00
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Sig Sauer P228/P229 22LR Non-Rail Conversion Kit w/ Threaded Barrel - 10rd
Price: $349.00

Caliber exchange / conversion kits allow you to change the caliber of your Sig Sauer P229 pistol.

Caliber Exchange Kit versus Conversion Kit:


Sig Sauer uses the designation caliber exchange kit to refer to centerfire conversion kits. If you are converting your P229 to 9mm, .40 S&W, or .357 Sig, you are buying a caliber exchange kit.

Sig Sauer uses the designation conversion kit specifically for .22 LR conversion kits (only).

Sig Sauer started using a universal locking insert on all the P229's produced in Exeter allowing for greater compatibility with their caliber exchange kits. 

There are a variety of kits available allowing you to change caliber on your pistol but there are a few caveats below. On each of the product pages we have also listed compatibility but if you have any questions, definitely call us (573-859-6044) to confirm compatibility for your model.

German Frame P229's:

German Frame P229 - .40 S&W & .357 Sig

If you have a German made frame, your frame is only compatible with the .22 LR conversion kit or the same caliber centerfire caliber exchange kit of your current pistol. 

For example, if you have a P229 chambered in .40, you could use the standard .40 Caliber Exchange Kit to replace your slide / barrel or you could use the Elite Legacy kit to upgrade to an Elite slide. The same goes for the SAS kit.

You can also buy a .40 S&W barrel for your .357 Sig and convert it without buying the full caliber exchange kit. The vice versa is also applicable.

German Frame P229 - 9mm, 15rd

If you have a German frame P229 chambered in 9mm that came from the factory with a 15rd magazine, all of the above centerfire caliber exchange kits will work on your pistol. The .22 LR railed conversion kit will work on railed models but the non-railed model will not work on a non-railed P229 9mm that came with a 15rd magazine.

German Frame P229 - 9mm, 13rd

If you have a German frame P229 chambered in 9mm that came from the factory with a 13rd magazine, only the 9mm Elite Legacy caliber exchange kit will work on your pistol. The railed .22 LR conversion kit will work on railed German models and the non-railed conversion kit will work on non-railed models.

Exeter, NH Frame P229's:

Exeter, NH Frame - .40 S&W / .357 Sig

If you have a P229 with a frame that was manufactured in Exeter, NH and chambered in .357 Sig or .40 S&W, any of the above conversion / caliber exchange kits will work with your pistol. 

The only exception to this is the P229 SAS (non-rail). The P229 SAS is not compatible with the P228 / P229 non-rail conversion kit despite it not having a rail. The P229 railed conversion kit will work on it but there is a gap between the dust cover and slide (roughly 1.5 centimeters).

Exeter, NH Frame - 9mm, 15rd

If you have a P229 with an Exeter, NH frame and 15rd magazine capacity (if the magazine included with the pistol from the factory was a 15rd magazine), then all of the above conversion / caliber exchange kits will work.

The only exception to this is the P229 SAS (non-rail). The P229 SAS is not compatible with the P228 / P229 non-rail conversion kit despite it not having a rail. The P229 railed conversion kit will work on it but there is a gap between the dust cover and slide (roughly 1.5 centimeters).

Exeter, NH Frame - 9mm, 13rd

If you have a P229 with an Exeter, NH frame, chambered in 9mm, that came from the factory with a 13rd magazine, only the 9mm Elite Legacy caliber exchange kit will work on your pistol. The railed .22 LR conversion kit will work on railed Exeter models and the non-railed conversion kit will work on non-railed models.

The only exception to this is the P229 SAS (non-rail). The P229 SAS is not compatible with the P228 / P229 non-rail conversion kit despite it not having a rail. The P229 railed conversion kit will work on it but there is a gap between the dust cover and slide (roughly 1.5 centimeters).

What is included with P229 Conversion Kits?

All P229 conversion kits include the full slide, barrel, guide rod, recoil spring, and magazine. 

The .22 LR rimfire conversion kits have adjustable contrast sights and 10rd magazines. These conversion kits are compliant in most states but make sure you know your local laws before ordering. Sig doesn't offer .22 LR magazines larger than 10rd.

What is included with P229 Caliber Exchange Kits?

All of these kits come with the slide, barrel, guide rod, recoil spring, and one magazine.

Centerfire caliber exchange kits come with night sights unless otherwise noted in the product specs. 9mm caliber exchange kits come with one 15rd magazine and .40 S&W / .357 Sig kits come with 12rd magazines.

Be aware of magazine capacity restrictions for your home state! California, Hawaii, Massachusetts, and New York limit magazine capacity for civilians to 10 rounds. If you are purchasing a caliber exchange kit and live in one of these states, please call prior to purchase to ensure we have a 10rd magazine available. We can swap magazines if they are in stock. If the magazine is not in stock, we will have to ship the kit without a magazine.

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