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JTS-M12AK/EM-12B 10 round steel magazine.

  • Our version of magazines for the JTS-12 shotgun, note that the front contact point is similar to a Vepr-12 to give support.
  • Note the wider taller rear lock up point. This surface contacts a bearing surface inside of the shotgun receiver to hold the magazines forward.
  • Showing the back of the magazine.
  • Image 4
Current Stock:

Product Description


These magazines are based in part on our Saiga-12 and Vepr-12 magazines.

Designed for the best possible function and firm lock up with your JTS-M12 AK shotgun.

These are not compatible with either the Saiga-12 or Vepr-12 as they have been optimized for the JTS-M12 AK for best reliability. 

This magazine does NOT fit the JTS-M12 AR.

We are working on a magazine for that firearm.


10 round magazine with all steel construction with Nitride treated surface for corrosion resistance.

This surface treatment is currently being used as a substitute for industrial hard chroming.

Product Videos

Csspecs JTS-12 10 round magazine (00:28)
We will have a production model of this magazine in a couple months. It is a modified Saiga-12 magazine with a different front catch and different back assembly. Sits significantly firmer in the magazine well compared to any Saiga-12 magazine.
  • Csspecs JTS-12...
    We will have a production model of this magazine in a couple m...
  • JTS 12 fitting.
    I will be redoing this. I have a cold and I am losing my voice...

Warranty Information

30 day return for refund
1 year normal use.

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Product Reviews

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  1. Excellent magazine! 5 Star Review

    Posted by on 29th Sep 2018

    At first I was skeptical about the price, but I bought it anyway. It was a great decision, the magazine feels strong and sturdy. It fits the gun better than the 5 round mag from the manufacturer. I’ve put about 50rounds of slugs and buckshot with this magazine, no feeding issues. My only regret it’s that csspecs didn’t design the whole gun.

  2. Very Happy! 5 Star Review

    Posted by on 10th Aug 2018

    It made sense to order two.They both function flawlessly. Not one single feed or stove pipe in 200 rounds! Actually once since my order 7/18. Awesome! As to the "Almost Perfect" - comment #6. I figured out that if you load the mag while the slide is open it seats just fine - you don't have to lock it in using the mag release switch. Can't wait for a drum.

  3. Jts m12 magazine m 5 Star Review

    Posted by on 3rd Jun 2018

    The magazine work very well if you have a jts m12 you need to get one or more I know I will be getting another one soon thanks csspecs for making a good magazine.

  4. nice mag 4 Star Review

    Posted by on 27th May 2018

    it took a little bit of filing to get the mag to lock into the magazine well. it would be nice if you added a beefier top so it would fit more snug into the well. overall a good mag.

  5. Waaaaay easier with 10 rounds! 5 Star Review

    Posted by on 9th May 2018

    I put about 40 rounds through one of these with no issues at all. Ran super smooth, I'll have to get another one soon. Thanks guys, keep up the good work! If there's ever a drum available, sign me up! Haha

  6. Almost perfect 5 Star Review

    Posted by on 7th Apr 2018

    I am well pleased with the construction of the magazine. After filing it down is sat in my JTS perfectly. I had one jam the first time i shot it, but I havent had another problem since. I would love it if they came out with like a 20rd drum!! Will be buying more

  7. Nice n tight, 5 Star Review

    Posted by on 2nd Apr 2018

    Fits perfect and spring is strong. What else do you need except a multi-pak discount?

  8. Almost perfect 4 Star Review

    Posted by on 2nd Apr 2018

    I purchased two of the 10 rounds magazines and they are really nice but the way they lock in place is a little iffy, you have to wiggle it past the opening then lock it in but it does function well with all 10 shells firing and ejecting so if the top was maybe a little smaller it would be perfect. Let me know if you change anything I would love to try them out

  9. Great fit 5 Star Review

    Posted by on 30th Mar 2018

    Took it out of the packaging straight to the gun. Fit perfectly. Not sure why some had to modify the mag. Mine clicked in and came out great. Bought 2! I have yet to fire it, but I'll let you know how it cane out later.

  10. Very pleased 5 Star Review

    Posted by on 28th Mar 2018

    Alot more fun than the 5 round mags. Very pleased with all steel construction. And I plan on getting more soon

Previous | Showing reviews 11-20 of 46 | Next