Sig Conversion p229 - The Firearms Forum

PharmrJohn · 08-09-2009, 10:54 AM

While looking at Sigs, I became aware that you can change barrels to shoot a different caliber round. However, I am also under the assumption that the transitive property does not apply.

True or False?

A 9mm Sig cannot be converted to a .40 and .357sig but a .40 and 357 can do all three providing the barrel is replaced.

If so, I would expect problems with jamming due to parts within the pistol that are meant for the .40 caliber but are obviously being used for a different size round.

Thanks in advance.......

Suwannee Tim · 08-12-2009, 09:36 PM

My understanding is that a 40/357 Sig will shoot 9mm with a 9mm barrel and magazine. I have two 40 Sigs and I got 357 pipes for both of them but I am skeptical of the 9mm conversion though I have no reason to doubt it works.

Kieran McCaig · 08-12-2009, 09:41 PM

I got the p226 classic in 2lr and the sig upgrade package says 9mm 357sig and 40s&w for both the 226 and 229 price is 399.95

TOOHSOTKIL · 08-12-2009, 09:54 PM

Interesting,(all based on the 10mm) the .40 is a 10mm cut down, the .357Sig is a .40 necked down, so this Sig breach face is 9mm also.

Kinda a scarey.........

Kieran McCaig · 08-12-2009, 09:57 PM

I should have worded that different. teh frame stays pick your barrel slide conversion kit in one of the three calibers

08-09-2009, 10:54 AM	#1
PharmrJohn Senior Member Join Date: Jun 2009 Location: Western Washington Posts: 975	Sig Conversion p229 While looking at Sigs, I became aware that you can change barrels to shoot a different caliber round. However, I am also under the assumption that the transitive property does not apply. True or False? A 9mm Sig cannot be converted to a .40 and .357sig but a .40 and 357 can do all three providing the barrel is replaced. If so, I would expect problems with jamming due to parts within the pistol that are meant for the .40 caliber but are obviously being used for a different size round. Thanks in advance....... -->

08-12-2009, 09:36 PM	#2
Suwannee Tim Registered User Join Date: Feb 2009 Posts: 2,227	Re: Sig Conversion p229 My understanding is that a 40/357 Sig will shoot 9mm with a 9mm barrel and magazine. I have two 40 Sigs and I got 357 pipes for both of them but I am skeptical of the 9mm conversion though I have no reason to doubt it works.

08-12-2009, 09:41 PM	#3
Kieran McCaig Advanced Senior Member Join Date: Jul 2009 Location: canada Posts: 1,469	Re: Sig Conversion p229 I got the p226 classic in 2lr and the sig upgrade package says 9mm 357sig and 40s&w for both the 226 and 229 price is 399.95

08-12-2009, 09:54 PM	#4
TOOHSOTKIL V.I.P. Member Join Date: Jan 2009 Location: Curracus Posts: 318	Re: Sig Conversion p229 Interesting,(all based on the 10mm) the .40 is a 10mm cut down, the .357Sig is a .40 necked down, so this Sig breach face is 9mm also. Kinda a scarey.........

08-12-2009, 09:57 PM	#5
Kieran McCaig Advanced Senior Member Join Date: Jul 2009 Location: canada Posts: 1,469	Re: Sig Conversion p229 I should have worded that different. teh frame stays pick your barrel slide conversion kit in one of the three calibers