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

  • View of the entire magazine from the side.
  • Side of magazine
  • Back of magazine
  • New style low profile floor plate
  • Fitting instructions
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.


Weight is 16.9 ounces.

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

Previous | Showing reviews 11-20 of 55 | Next

  1. They work Great! 5 Star Review

    Posted by on 10th May 2019

    Mags fit and function perfectly. These are awesome!

  2. Jts 10 round mag 4 Star Review

    Posted by on 17th Apr 2019

    Just bought my first of many great mag fits tight loads well. All in all a good buy

  3. Excellent magazines! 5 Star Review

    Posted by on 1st Apr 2019

    I have bought 4 of these magazines. Excellent quality. I had to a tiny amount of fitting on all 4, but that was no problem. Just followed Csspecs instructions. Will definitly buy more and recommend these mags to anyone who has a JTS-M12AK shotgun. These mags are worth every penny!

  4. These are amazing mags! 5 Star Review

    Posted by on 28th Mar 2019

    It's nice when you buy something and it actually performs like it's supposed to. I used them the first time I was able to get to the range. Easy to load. Rock solid. When you push that mag up there and lock it in, it feels like you just docked your shuttle with the ISS. If you run out of ammo just take one of these out and start bashing the bad guys with it.

  5. Great JTS-M12 AK Shotgun Mag 5 Star Review

    Posted by on 13th Mar 2019

    Best 10 round Mag around. Solid lock-up in gun. No fitting required in my case, just snapped in. Mag is made of steel and fed all shells with no problems. Don't waste your time with a Saiga Mag that wobbles around and barely stays in the gun.

  6. JTS M12 Ak mags 5 Star Review

    Posted by on 10th Dec 2018

    Ive bought 2 of the 10 round jts m12 ak magazines both fit and function perfectly. Great Mags.

  7. No room for improvement ! 5 Star Review

    Posted by on 5th Dec 2018

    I bought 2 of these some months back and just got 2 more. (On Sale) I have no issues with them. They hold 3 inch magnum #4 buck shot for my JTS 12. Coyote Killers. Really good fit. No issues. For anyone having problems inserting the clip. Lock the bolt open first.

  8. Great function 5 Star Review

    Posted by on 12th Nov 2018

    The design on the clip is pretty great , I had a hard time getting it to lock into the mag chamber but other then that it worked fantastic and didn’t cause any jamming issues. Definitely will not be going back to the 5 round standard mags haha

  9. Bad seating issues with the magazines. 1 Star Review

    Posted by on 9th Nov 2018

    I bought these magazines to try them out in the JTS 12 and the magazines would not seat in the shotgun on the way. Also the the way the shells sit in the magazine too lose. The shells have to much play in the magazine to where it can cause feeding issues. Save your money and stick with the original mags or use the VPR mags for less.

    The magazine requires fitting as is shown in the video on the product page, and also I sent a photo to your email with what I hope are clearer instructions. Basically the distance from the internal stops on the shotgun receiver and the latch mounted on the magazine well are shorter than normal. Not an uncommon event with AK pattern shotguns.
    As for the way the shells are held in the magazine. The shotguns has two large metal guides that firmly hold the ammo from moving side to side while the magazine is in the gun.

    As for using Vepr-12 magazines in the JTS-12AK, I am nearly 100% sure the magazines will NOT stay in the shotgun as they do not have a front catch.

  10. 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.

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