Sig Sauer P365 +2 for 12 Round Magazine

(118 customer reviews)


This conversion reliably turns your Sig P365 12 round magazine into a 14 round magazine with almost no length increase.  The spring, follower, and base are replaced with MagGuts™ components while the magazine housing and magazine sleeve are reused.  We pushed innovation through our “out of the box” approach to R&D and came up with a novel system that turns an already impressive capacity dense firearm into a weapon with a density of firepower that almost seems impossible.  With this conversion you will get:

  • Reliable feed and slide lock
  • +2 capacity increase with almost no sacrifice in length (about 3/32″) and no impact on concealment
  • Easy to load
  • Reuses the OEM magazine sleeve
  • OEM – like fit and feel
  • Highest quality spring and component materials used.
  • Cutting edge magazine technology [patent(s) pending]

Not compatible with the XL models.
This item is not available for shipment to California.

Due to high demand, please allow up to 5 days for order processing on this product.

SKU: CVN039 Categories: , Tags: , ,

118 reviews for Sig Sauer P365 +2 for 12 Round Magazine

  1. Stan (verified owner)

    Fast shipping and very easy to install. I’m looking forward to buying more.

  2. Raymond C (verified owner)

    It works

  3. Mark A. (verified owner)

  4. Thomas Gardner (verified owner)

    I have used Magguts in my Smith Shields for some time with excellent results. When they became available for my current carry Sig p365 I had to order. Shipment was quick and reliability was excellent.

  5. Dean Norby (verified owner)

  6. Anonymous (verified owner)

    Works great and does not any noticeable length to the mag. Highly recommended.

  7. John (verified owner)

    Very reliable and slide lock every time. I highly recommend these. I use these for my EDC.

  8. Mike (verified owner)

  9. Peter B. (verified owner)

    A little spendy considering an OEM mag is $45 to $50

  10. Ernest L. (verified owner) like a charm

  11. Kenneth (verified owner)

  12. Steven B. (verified owner)

    Same tests and no problem so far.

  13. Scott P. (verified owner)

  14. Donovan AKERS (verified owner)

    Works well no problems so far. Easy to install makes a awesome pistol the p365 even better 10/10 would recommend

  15. Michael P. (verified owner)

  16. Mark B. (verified owner)

  17. Anonymous (verified owner)

    Always quality that works from Magguts!

  18. John M. (verified owner)

    Works great. I plan to get another for the 10 rd mag.

  19. Michael A. (verified owner)

    Does what it is supposed to do. A little harder to install then I would’ve thought but not a problem. Feeds gun flawlessly.

  20. Richard (verified owner)

  21. Scott P. (verified owner)

    Great quality, functioning 100% so far. Used their internals for my S&W Shield for years; I have faith in this company.

  22. William G. (verified owner)

    Work just as advertised

  23. Mel D. (verified owner)

    I thought the p365 12+2 is the same for the p365xl 12+2 mag. It’s not the same, so returned it. Would be great if Magguts could supply the shipping label and deduct the return shipping from the purchased item. Most USPS won’t accept anything that has to do with a firearm.

  24. Anonymous (verified owner)

    Works better than original with an older P365. It fed a variety of defensive and range rounds without any problems

  25. DAVID M. (verified owner)

    I don’t know how to give higher praise than to order more, which I will be doing.

  26. Fernando C. (verified owner)

  27. David M. (verified owner)

    I bought a single P365 12 round conversion to test, though I had little doubt that it would run properly having used their products in the past with success. I found the conversion was straightforward as advertised and simple to do. Though would advise the use of a vise as a third hand to gently hold the magazine body to assemble. I tested it as soon as assemble and it functioned perfectly even with self defense ammo.

  28. David C. (verified owner)

  29. Joshua M. (verified owner)

  30. Martin Richardson (verified owner)

  31. Dwayne H. (verified owner)

    Spring catches on gap in mag & full msg causes “stretch” on mag seating. Hard to get mag to lock in. Interested to see how it cycles.

  32. Anonymous (verified owner)

  33. Camden M. (verified owner)

    Wow! Almost the same capacity as a G19! This is awesome!

  34. J.F. (verified owner)

    It took me a little while to get them installed, due to arthritic hands and probably my age (86). However – they work perfectly in my Sig! Now my Sig 365 can be pocket carried with 15 rounds of protection. Extremely happy with my purchase!

  35. Dale (verified owner)

    Easy to install, looks good, minimally adds to length of magazine. Functions great, took to the range and fired 100 rds without out a single issue. Great product.

  36. John S. (verified owner)

    An excellent product in every way. My primary reason for upgrading to these parts was because they were reportedly easier to load than the factory magazines. That turned out to be true, and I went from being forced to download the mags to easily having an extra two rounds over what the originals were supposed to hold (and was almost impossible to load). Highly recommended.

  37. Ron (verified owner)

    Great product easy installation . Great upgrade for the P365

  38. William Key (verified owner)

    WOW 2 more shots and hardly any increase in size. Guts were easy to install too.

  39. E.J. C. (verified owner)

    Super pleased, quality and ease of installing very high! Pleased customer!

  40. Michael M. (verified owner)

    Great product.

  41. Michael (verified owner)

    Great mag conversion! Works like OEM but 2 more rounds.

  42. Geno B. (verified owner)

  43. Rick Fox (verified owner)

    Excellent service, easy to install with clear instructions. I will be buying more!

  44. Alan S. (verified owner)

    fits well easy to assemble

  45. Caleb R. (verified owner)

    Work perfect

  46. YOUNG K. (verified owner)

  47. Michael (verified owner)

    In a pricey end but worth it

  48. Josh H. (verified owner)

    So far so good!! As long as they stay reliable, what’s not to like?!?!

  49. Alan C. (verified owner)

    I’m only giving this a 3 because I just received this. I haven’t had time to hit the range yet. What I can say is it is easy to install and seems to work and cycle through as it should. Now what I really like is the 1/4 extra just fits my hand like a glove. Seriously feels awesome as that was a unexpected pleasure so to speak.

    I purchased this because I just don’t like the size of the XL as I like the normal P365 in size. This just rocked my world in a great way. Thank you guys for making my little Sig P365 capable of 14 plus 1. Life is good. 15 rounds in I mini. Hope I never need it but I now have it if needed.

  50. Michael Brown (verified owner)

    Easy installation. It took longer to eject the round in the mag than it took to install the Magguts. Works perfectly. This made for my 10th Magguts in my EDCs, and all have performed perfectly, some older ones having each gone through about 5,000 rounds. I’m anxiously awaiting the Magguts for the 15 round mag.

  51. Daniel Brown (verified owner)

    Excellent product. Simple to install. Haven’t had any issues.

  52. Chet P. (verified owner)

    Quality product, Easy to install. Works great, no feed issues.

  53. Ross (verified owner)

    Received in a timely fashion even for our Harsh Times

  54. Michael (verified owner)

    Couldn’t be happier.

  55. JOHN DUESENBERG (verified owner)

    they are great, going to order another 3.

  56. Michael Mueller (verified owner)

    Great service

  57. Josue V. (verified owner)

    The terminations looks pretty good and the dimensions are awesome

  58. Michael G. (verified owner)

    Very easy install. Very little difference in length. Functioned perfectly through 3 reloads on first trip to the range. I expect it will continue for a very long time.

  59. Anonymous (verified owner)

    I know the product is great, I was supposed to receive it last Week. And a week after USPS says it is arriving late, Do not use USPS

  60. Cory Ayers (verified owner)

    I have not received my order yet. Please contact me.

    • admincorso (store manager)

      Your order was shipped promptly after the order was placed. Many packages are delayed as a result of bad weather across the country. It is out of our hands once we ship it.
      According to tracking it is out for delivery today.

  61. Dustin (verified owner)

    I am excited to get them but haven’t received them yet ordered them two weeks ago

    • admincorso (store manager)

      Your order was shipped soon after it was placed. USPS has had a lot of delays lately due to recent weather. According to tracking it is out for delivery today.
      We hope you will contact us with an updated review related to the performance of the product rather than the performance of the Post Office.

  62. Lindsey Hopewell (verified owner)

    I still haven’t received my parts

    • admincorso (store manager)

      Your order was shipped promptly after order was placed. Weather has delayed many shipments lately. Tracking was updated today and it looks like you will be receiving it soon.

  63. Jason DeVito (verified owner)

    Have not received them yet

  64. J.F. R. (verified owner)

    Works great!

  65. Christian H. (verified owner)

    The product works as advertised adding 2 additional rounds, a few issues I see are 1. There seems to be some looseness to the mag where you can hear the spring/ammo moving around. 2. Because of the spring being squared off it looks to have a chance to stick out of the little corner cuts of the magazine causing the spring to not move and possibly causing a malfunction. I have yet to take it to the range to test.

  66. Larry (verified owner)

    I have not yet received my order, so I am unable to provide an accurate review as requested by the email. Perhaps you should generate the review request after you have delivery confirmation.

  67. Rickey H. (verified owner)

    Once contact was finally made from support, replacement was offered and the replacement worked without issue.
    This review was updated by the customer.

    • admincorso (store manager)

      The converted magazines definitely have plenty of force to operate extremely reliably. Please see an email sent from support. We will take care of your issue one way or another.

  68. Edgar Flotte (verified owner)

    It doesn’t work well I am getting nose dives and not feeding

  69. Alan Hull (verified owner)

    Works exactly as advertised. My only issue is the spring steel has sharp edges and has a lot of tension. When trying to install the spring and compress it into the magazine, it got away from me, and sliced the tip of my thumb as I was trying to compress it. Recommend wearing gloves to install. Other than my mishap, it works great!

  70. Donovan (verified owner)

    Great price and a fantastic product! Easy to install and you have to love two extra rounds in a compact platform. I will definitely be purchasing more for my 10 and 15 round mags soon.

  71. Michael (verified owner)

    Recently I decided to switch my daily carry to the Sig Sauer p365. The main reason was for capacity. So it only makes sense to use MagGut’s spring and follower kit to give me even more capacity in such a small package. Installation was easy and all four of my 12 round (now 14) magazines have worked flawlessly with their product installed. It’s easy to get a full capacity 14 round mag in my gun with a round in the chamber no problem. Shipping was fast and well packaged. I highly recommend this product and I’ll buy more as I buy more magazines.

  72. Robert (verified owner)

  73. Blake B. (verified owner)

    Very happy with this kit! Awaiting the release of the plus 2 for the 15 round magazine!

  74. Raj (verified owner)

    Love the product, I’ve bought 7 of them so far. I preferred the old hard plastic packaging so that I could store my original mag spring in it, but I’m sure the new packaging saves money.

  75. Anonymous (verified owner)

    The Sig P365 was looked at as an engineering marvel anyhow. The 12rd magazines make the tiny tiny pistol more comfortable/accurate. Being able to put 14+1 in a package that small (3/32″ addition to the height is negligible) and have it function as flawlessly as stock for a mere $34 additional…just makes sense.

  76. Jordan D. (verified owner)

  77. Glen (verified owner)

    Easy to install and works great. thanks

  78. Taylor Tracy (verified owner)

    After 13 days I was told they had finally shipped. Still haven’t received anything… I’ll have to get back to ya.

  79. Scott H. (verified owner)

    I’ve put about 100 rounds through the gun using the new guts and so far no malfunctions. Seems to work great. Amazing to get 2 more rounds with such a tiny increase in baseplate size. Very impressed so far.

  80. Anonymous (verified owner)

  81. Anonymous (verified owner)

    Gets 5 stars based on quality, easy to install and that I know it will work flawlessly just like the magguts I put in my Kahr CT380

  82. kay b. (verified owner)

    Installation was quick and easy. Have shot a few hundred rounds through these without failure. Great Product.

  83. Jatniel Rodriguez (verified owner)

    Took out to the range rand about 200 rounds and functioned fine with all sorts of ammo plus P and reloads as well I will start carry with these. I think they are pricey for what they are priced at about 25$ I think would be more reasonable and would make me buy more but the fact that you can have plus 2 rounds in a frame so small I think is worth it and it’s impressive how they don’t any any real noticeable length to the magazine.

  84. Mclean G. (verified owner)

    Made reloading easier which was surprising since there’s such little room taken up to add the two rounds, put about 200 rounds down on it so far and it cycled flawlessly, I will be buying more

  85. Adrian L. (verified owner)

    Shipping is super fast and easy to assemble. Happy customer ordered 2 more!

  86. Michael A. (verified owner)

    Worked as described. Super easy install.

  87. Micah H. (verified owner)

    Love the addition of 2 extra rounds! There’s a subtle rattle when the mag is in the firearm, but I’m hoping that’ll go away after some time.

  88. David Smith (verified owner)

    bought 365xl mag guts to take it to 14 rds. (from 12) The last round will not feed into the chamber. Slide locks open with one round remaining. Doesn’t matter if there are 14 rounds loaded or 2 rounds loaded-slide locks open with one round left in the mag.

    • admincorso (store manager)

      Support will be contacting you to help get this fixed.

  89. Chris Simpson (verified owner)

    Idk yet. Haven’t yet ran it.

  90. Tim (verified owner)

    It works so far… have only run 3 mags because of .. well ammo.. arm and leg!

  91. Joel (verified owner)

    Easy install, works as advertised, +2 🙂

  92. Andrew Eubanks (verified owner)

    Absolutely happy with my purchase, quality product and fast shipping! Highly recommend and will do future business

  93. Christopher Sizelove (verified owner)

    Fantastic quality. There’s a reason why they are highly reviewed. I have LCP, LCP II, P238, and P365 kits.

    Here are my two complaints. It doesn’t matter if your order is $240, you will still pay shipping. I think they could do a free ship policy for orders over $100. And then second, they haven’t had LCP II kits in for years. And I need 6. Been needing 6 for years. So I give 4 stars.

    But otherwise, I can’t say a bad thing about the products.

  94. James S. (verified owner)

    So far these have been great! Simple installation, and they have functioned flawlessly what I’ve gotten to run em. Will be purchasing for any additional mags I get in the future.

  95. Palmina Dattoma Meccia (verified owner)

    Apparently we have not received these items as they do not ship to California. I am a Deputy Sheriff in California and am able to carry a sig P365 14 rounder.

  96. Wade Hermes (verified owner)

  97. SCOTT (verified owner)

    Changed my mind before my order shipped and they altered my order for me, no fuss no muss. Great customer service.

  98. Richard Dillon (verified owner)

    Easy to install, and works as advertised, with extremely fast delivery. That’s all anyone can ask for!

  99. Timothy B. (verified owner)

    Haven’t tried it yet at the range but not for the mags that fit in xl grip

  100. James C. (verified owner)

    Went together easily. Dry cycled full magazine multiple times and worked flawlessly. Haven’t shot with rebuilt mag, but looking forward to it. Seems like a great product.

  101. Kevin (verified owner)

    Works as expected for 12rd mag

  102. David A. (verified owner)

    Good kit. Strips easy by hand. But has sharp edges that need smoothed out.

  103. Anonymous (verified owner)

    I had an incident where driver on drugs accused me of following him as he was parked in the middle of the street on a curve. He jumped out and called me a racial name for a white male and threatened to harm me, while I was taking my son to the park. I responded with a tactical racial remarked as he was already approaching my car with intent to fight, at which he then changed his attack plan. He and the other male were somalian, and I was in a south Seattle district. Little to say, they never knew that I had a weapon (p365) I can easily draw and put into work, but that I also had 28 rounds in only 2 mags.
    Dang right magguts! You helped a legal carrying, responsible adult and his child in perfect peace. Thank you!

  104. Philip B. (verified owner)

  105. greg casura (verified owner)

    My second order of these! Great!

  106. William D. (verified owner)

  107. Ryan W. (verified owner)

    Jammed constantly with a few brands of ball rds. Mags were cleaned before testing.

    • admincorso (store manager)

      The converted magazines should work perfectly. It sounds like something is wrong. Please refer to an email we sent from support to help you get things working as they should be.

  108. Michael James (verified owner)

  109. Kim (verified owner)

    Very happy, looking forward to the P365XL

  110. Kyle B. (verified owner)

    Tried using this 12+1 extension in my P365. With Federal 115 gr target ammo and and Hornady +P 124 gr XTP. It had a failure to feed almost every other round. The original magazine worked flawlessly.

    • admincorso (store manager)

      That converted magazine should work perfectly. Please refer to an email sent to you from support and we will help you get it figured out.

  111. John (verified owner)

  112. Akeem Wilkins (verified owner)

  113. Anonymous (verified owner)

    Adds plus 2 and then only adds 3mm to the mag length!🤯 literally 1″ shorter than a 15rnd mag from sig, 1 less round… My only issue is I wish I found these first!!

  114. Steven H. (verified owner)

    These things are great. Easy to install, work great. A little pricey but what can you do?

  115. Kevin R. (verified owner)

    Product works as designed. Loading is indeed easier. 2 more rounds without added bulk, this is a win/win.

  116. Chris Sizelove (verified owner)

    Fantastic products. Have been using them for years. I have two gripes. LCP II kits have not been in stock for years, and I need 5 of them. When ordering $250 in kits, one still has to pay incredible amounts of shipping.

  117. Todd (verified owner)

  118. Philip Cabrera (verified owner)

    This is a genius product works excellent I highly recommend!!

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