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Might trade my p239

1746 Views 40 Replies 12 Participants Last post by  Peep'nTom
I have recently been thinking of trading/selling my p239 DAO .40 for a p239 sa/da 9mm. Now that I have a recently acquired p229 .40 I was thinking that a 9mm p239 would be lighter, hold and extra round, and less recoil.
Maybe be a better in fit with my p226 9mm and p229 .40? Any thoughts appreciated.
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I've got both calibers covered, as currently during the warmer months I use the 9mm, both P239 and P228, and during colder months, I use the .40 S&W in both P239 and P229. It's not so much the capacity, as I carry an extra Magazine regardless of which model I'm carrying. Now as for action type, for an EDC, a DA/SA would be preferable over a DAO/DAK, only for the possible need for a longer shots accuracy.

Punching through extra layers of clothing encountered in colder weather, the .40 S&W gives me a little more confidence, as it starts out larger, whether either round expands or not. In the majority of scenarios, multiple assailants are not normally encountered, unless you are in a larger metropolitan area, in troubled times.
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You can just buy a 9mm barrel unless you want to get away from the dao. And dao is an easier less expensive conversion to da/sa than is a dak. P239 is a chameleon, it can be 9,357,40 with a barrel swap. Seems easier than selling, looking, buying, negotiating, maybe dealing with 4473, etc., in this environment.
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You can just buy a 9mm barrel unless you want to get away from the dao. And dao is an easier less expensive conversion to da/sa than is a dak. P239 is a chameleon, it can be 9,357,40 with a barrel swap. Seems easier than selling, looking, buying, negotiating, maybe dealing with 4473, etc., in this environment.
I agree that if it is indeed a DAO and not a DAK, converting to DA/SA is not a huge hassle. So from that standpoint, OP could keep his current gun. As far as the barrels go, I'm a little ignorant when it comes to the P239. Is there only one kind of P239 slide?

The P229 can be a "nightmare" for caliber conversions because of how many frame, slide, and barrel variations exist. The P226 is easier because there is only one frame and one locking insert, with caliber differences lying between the two different slides (.40/.357 and 9mm). On the P226, the .40/.357 barrels won't go into a 9mm slide, but a 9mm barrel will go into a .40/.357 slide (the breech face is a little too wide but most people report perfect function while firing with this arrangement). Is the P239 like that or is it truly interchangeable?
I agree that if it is indeed a DAO and not a DAK, converting to DA/SA is not a huge hassle. So from that standpoint, OP could keep his current gun. As far as the barrels go, I'm a little ignorant when it comes to the P239. Is there only one kind of P239 slide?

The P229 can be a "nightmare" for caliber conversions because of how many frame, slide, and barrel variations exist. The P226 is easier because there is only one frame and one locking insert, with caliber differences lying between the two different slides (.40/.357 and 9mm). On the P226, the .40/.357 barrels won't go into a 9mm slide, but a 9mm barrel will go into a .40/.357 slide (the breech face is a little too wide but most people report perfect function while firing with this arrangement). Is the P239 like that or is it truly interchangeable?
I definitely have a dao. I’ve never fired a p239 in da/sa. But my p229 and p226 are like that. In the last few years I’ve owned my p239 dao, I haven’t been super accurate with it. Not sure if it’s because if the trigger or the caliber.
Thats one of the reasons if thought of switching. The other reason is the weight. There are two different slides. Going to a 9mm slide saves about 2.1 ounces.
My 2-cents. First, converting to a DA/SA will require a different hammer and a 3-piece hammer drop assembly. You will also need a left grip that has the drop-lever cutout.

If it were me, I would keep it and drop a .357 barrel in it for a hotter result experienced by anything on the other end. I recently converted three DA/SA classic sigs to DA only - 239, 229, 226 and all sporting .357 barrels. I'm not an x-ring pistol shooter and I know that if I am ever in a sd situation, it will most likely be sudden and at close range versus calculated and at a distance. If I'm at a distance, I will seriously consider the other options other than firing.

I posted this right after my .357 p239 conversion to DAO and testing. 7 yards, 2 mags, fast change, fast non-aimed point-fire. With .357 Sig 65gr Xtreme Defenders splashing the chest cavity at 2100 fps, I really doubt 7 will be needed much less 14. I would not have the same confidence in a 9mm HP traveling at half the velocity.
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My 2-cents. First, converting to a DA/SA will require a different hammer and a 3-piece hammer drop assembly. You will also need a left grip that has the drop-lever cutout.

If it were me, I would keep it and drop a .357 barrel in it for a hotter result experienced by anything on the other end. I recently converted three DA/SA classic sigs to DA only - 239, 229, 226 and all sporting .357 barrels. I'm not an x-ring pistol shooter and I know that if I am ever in a sd situation, it will most likely be sudden and at close range versus calculated and at a distance. If I'm at a distance, I will seriously consider the other options other than firing.

I posted this right after my .357 p239 conversion to DAO and testing. 7 yards, 2 mags, fast change, fast non-aimed point-fire. With .357 Sig 65gr Xtreme Defenders splashing the chest cavity at 2100 fps, I really doubt 7 will be needed much less 14. I would not have the same confidence in a 9mm HP traveling at half the velocity.
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My 2-cents. First, converting to a DA/SA will require a different hammer and a 3-piece hammer drop assembly. You will also need a left grip that has the drop-lever cutout.

If it were me, I would keep it and drop a .357 barrel in it for a hotter result experienced by anything on the other end. I recently converted three DA/SA classic sigs to DA only - 239, 229, 226 and all sporting .357 barrels. I'm not an x-ring pistol shooter and I know that if I am ever in a sd situation, it will most likely be sudden and at close range versus calculated and at a distance. If I'm at a distance, I will seriously consider the other options other than firing.

I posted this right after my .357 p239 conversion to DAO and testing. 7 yards, 2 mags, fast change, fast non-aimed point-fire. With .357 Sig 65gr Xtreme Defenders splashing the chest cavity at 2100 fps, I really doubt 7 will be needed much less 14. I would not have the same confidence in a 9mm HP traveling at half the velocity.
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This is very interesting. I wasn’t expecting this comment. I would think everyone would tell me either convert it or get rid of it for da/sa. And I would’ve thought go with the very popular 9mm.
What differences would I notice if I went from .40 to .357 sig? I have thought of it in the past but .357 sig is so hard to find and very expensive. Barrels are impossible to find as well.
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Barrels are hard to find and ammo is expensive. But boy is it worth it. Save the 40 barrel for the range and carry the 357. Get a 357 barrel for the 229 first and see for yourself. You won’t be disappointed.
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This is very interesting. I wasn’t expecting this comment. I would think everyone would tell me either convert it or get rid of it for da/sa. And I would’ve thought go with the very popular 9mm.
What differences would I notice if I went from .40 to .357 sig? I have thought of it in the past but .357 sig is so hard to find and very expensive. Barrels are impossible to find as well.
I failed to consider the barrel now being a hen's tooth. I'll bet they show up on ebay occasionally. Search criteria to set to auto are
BBL-239-357
BBL239357

and the UPC#
798681220007
Regardless, I would still prefer the .40 in DAO over DA/SA. A hot .40 will perform much like a hot .45ACP and people LOVE their .45's. Underwood has some .40SW SD cartridges topped with 100gr monolithic at 1500 ft/s and 500 ft/lbs. I'm the school of lighter and faster. I would not kick a .40 out of bed. There's some serious windshield energy there.

With regard to the action, I transitioned mostly to DAO after I thought long and hard during work-related traveling on what self-defense scenarios I might find myself in. Before I became a Sig affectionado, I had Berettas and Glocks. I liked the security of a longer pull on the Beretta 92 first shot and had no qualms whatsoever about having it chambered and hammer down. The move to single-action after teh first shot was something I had to train to accommodate but it was almost like the first shot was a throw-away because I always trained to repeat fast-fire and not necessatily double-tap. Glocks had the consistent trigger pull from shot to shot but I was uneasy keeping one loaded ready-to-fire in the places I kept them like in a center console of my car or a 26 in my back pocket.

Then I got used to shooting revolvers in double action as would-be defense pieces. My current favorite carry and at-ready SD handgun is a S&W 5-shot MP340 loaded with reduced recoil/flash .357 magnum from Buffalo Bore. If someone were to threaten my life at a 11pm gas fill-up this is the gun that will stop them. I became adequate in self-stressed point-shooting this little revolver and also my Ruger GP100. The preference recently carried over to my sigs where I converted three of my favorite metal hammer-fired classics to DAO.

DAO is definitely not everyone's cup of tea but it fits the way I shoot and the way I think about using a handgun for self-defense. I do not shoot handguns recreationally and never relaxed. It's most always self-rushed and I try to put myself into that state of stress when I plug these sheets of printer paper. I still have DA/SA versions but these DAO guns are what I take to the club.
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A suggestion, but first a comparison of 2 P239s, my 9mm DAK with Khaki G-10s, and my .40 S&W DAO, notice slight difference in profile of the Slides...

White Air gun Trigger Gun barrel Gun accessory


What you may want to look for is a P239 Parts Set... most recently, on Gun Broker you can find in the "Gun Projects" category, in the "Sig Sauer Parts Kit" thread I've started, the prices some have went for, and there's No FFL required. Picking up a 9mm Parts kit, would give you all of the parts needed to convert to DA/SA, plus a complete 9mm Slide assembly, for "Plug & Play", as a 9mm Magazine will fit your .40 S&W Frame. Sig Sauer P 239 9mm Slide Barrel & Repair Parts No Reserve Penny Start - Gun Parts Kits at GunBroker.com : 933012893 Sig Sauer P239, 357 SIG Repair Parts - Gun Parts Kits at GunBroker.com : 932998119
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I failed to consider the barrel now being a hen's tooth. I'll bet they show up on ebay occasionally. Search criteria to set to auto are
BBL-239-357
BBL239357

and the UPC#
798681220007
Regardless, I would still prefer the .40 in DAO over DA/SA. A hot .40 will perform much like a hot .45ACP and people LOVE their .45's. Underwood has some .40SW SD cartridges topped with 100gr monolithic at 1500 ft/s and 500 ft/lbs. I'm the school of lighter and faster. I would not kick a .40 out of bed. There's some serious windshield energy there.

With regard to the action, I transitioned mostly to DAO after I thought long and hard during work-related traveling on what self-defense scenarios I might find myself in. Before I became a Sig affectionado, I had Berettas and Glocks. I liked the security of a longer pull on the Beretta 92 first shot and had no qualms whatsoever about having it chambered and hammer down. The move to single-action after teh first shot was something I had to train to accommodate but it was almost like the first shot was a throw-away because I always trained to repeat fast-fire and not necessatily double-tap. Glocks had the consistent trigger pull from shot to shot but I was uneasy keeping one loaded ready-to-fire in the places I kept them like in a center console of my car or a 26 in my back pocket.

Then I got used to shooting revolvers in double action as would-be defense pieces. My current favorite carry and at-ready SD handgun is a S&W 5-shot MP340 loaded with reduced recoil/flash .357 magnum from Buffalo Bore. If someone were to threaten my life at a 11pm gas fill-up this is the gun that will stop them. I became adequate in self-stressed point-shooting this little revolver and also my Ruger GP100. The preference recently carried over to my sigs where I converted three of my favorite metal hammer-fired classics to DAO.

DAO is definitely not everyone's cup of tea but it fits the way I shoot and the way I think about using a handgun for self-defense. I do not shoot handguns recreationally and never relaxed. It's most always self-rushed and I try to put myself into that state of stress when I plug these sheets of printer paper. I still have DA/SA versions but these DAO guns are what I take to the club.
I was curious about your stance on DAO, it’s not my favorite but I started with a DA/SA P220.
To the OP, if you’re not happy with the way you shoot it compared to your 229 then maybe the conversion is a smart move for you. I don’t have a guess on the cost of the conversion and if a new to you DA/SA is cost effective vs the conversion but I will second trying the.357 in the gun regardless of the action.
I've got both. I almost never shoot the .40/.357. :(
I've got both. I almost never shoot the .40/.357. :(
Why is that? Lack of 40/357 ammo, or something else?
Cost, and availability of .357 ammo. I guess I don't shoot enough to go through all the guns I own either. I always shoot the P225, a P229, and maybe another at each range trip.
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I was curious about your stance on DAO, it’s not my favorite but I started with a DA/SA P220.
To the OP, if you’re not happy with the way you shoot it compared to your 229 then maybe the conversion is a smart move for you. I don’t have a guess on the cost of the conversion and if a new to you DA/SA is cost effective vs the conversion but I will second trying the.357 in the gun regardless of the action.
I’m not really sure of the reason I don’t shoot it as well as other pistols. It would actually cost some money to narrow it down. Id either have to convert it to 9mm or buy a dedicated 9mm. Or convert it to da/sa. Or at the very least get rid of the slippery factory grips for some hogue g10 grips. I have large hands so at the bare minimum I have to use a magazine with a +1 pinky extension which I have. unfortunately it puts the grip length to the same size as my p229.
I shoot much better with the Hogue G10’s over the factory grips.
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Or at the very least get rid of the slippery factory grips for some hogue g10 grips. I have large hands so at the bare minimum I have to use a magazine with a +1 pinky extension which I have. unfortunately it puts the grip length to the same size as my p229.
NOW, we start getting to the real problem, the slick, worthless stock 239 grips. Get a pair of G10 checkered or piranha grips, drop in a 9mm barrel (or not) and practice. The 239 is one of the best shooting, most accurate Sigs ever made IMO. I prefer 40 but with the 40/357 version you can drop in a 9mm barrel. Very soft shooting. Not so with a 9mm version, you can not go up to 40/357. You have a 3 caliber capable Sig. It’s the perfect platform to practice dead on accuracy with 3 calibers in a concealable platform. Get +1 mag extensions, good grips and a comfortable holster and it may never leave your side.
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NOW, we start getting to the real problem, the slick, worthless stock 239 grips. Get a pair of G10 checkered or piranha grips, drop in a 9mm barrel (or not) and practice. The 239 is one of the best shooting, most accurate Sigs ever made IMO. I prefer 40 but with the 40/357 version you can drop in a 9mm barrel. Very soft shooting. Not so with a 9mm version, you can not go up to 40/357. You have a 3 caliber capable Sig. It’s the perfect platform to practice dead on accuracy with 3 calibers in a concealable platform. Get +1 mag extensions, good grips and a comfortable holster and it may never leave your side.
This is an excellent suggestion. I just might try it.

I have thought of getting a 9mm barrel in the past. I should’ve then. Back when they were $90 at cdnn sports. Then they went up to $99. And now $130.
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In a sea of plastic fantastic pocket pistols, IMO, none match the accuracy and RELIABILITY of the 239. The ability to carry 3 calibers from soft shooting 9 to OMG 357 Sig, all in one concealable platform, and one carry rig in a solid hammer fired trustworthy package. Have I made my case? You might guess I’m a 239 fan. Good luck with your decision.
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