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EMG SAI-17 Type CO2 GBB Airsoft Training Magazine for SAI / WE G-Series (Model: 17/25+1 Round Type)

ID: 49824 (MAG-EMG-CO2-M17)
4.3 stars, based on 3 reviews
EMG SAI-17 Type CO2 GBB Airsoft Training Magazine for SAI / WE G-Series (Model: 17/25+1 Round Type)
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MAP ProtectedExempt From Coupons
The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.
The EMG SAI series of WE-Tech G-series magazines replicates the realistic round capacity for their corresponding model. This was done in an effort to further promote practical firearms training with Airsoft GBB pistols. The base of the magazine is made from an extremely durable nylon-reinforced polymer, and has been redesigned for easier grip on the magazine.

The SAI-17 type magazine will fit virtually all of ZEV, ATI, WE G-Series, M-Series, SAI-17, SAI-19, SAI-34 (and compatible) series Airsoft GBB pistols. For shorter grip models such as the 19, the magazine will extend out of the grip.
This magazine came with a insert which limits the capacity of the magazine to 17 rounds, optimized for law enforcement training. This limiter can easily be removed for this magazine to be converted to 25+1 round standard magazine.


  • Heavyweight, realistic feel
  • Realistic 17rounds / 25+1 by remove a limiter in the mag.
  • Larger magazine base for better grip
  • Mag base made from extremely durable nylon-reinforced polymer
  • Made from high strength metal alloy
  • Uses standard 12g CO2 cartridges
  • CNC Steel Cap
Compatibility: For SAI17, WE-Tech G17 and other compatible G-series Airsoft GBB pistols
Capacity: 17rds
Gas Type: 12g CO2 cartridge

Manufacturer: EMG

About EMG

The EMG vision is to manufacture products the world have never seen before, products we would put our names on it, and products that hits the spot! "EMG" (Evike Manufacturing Group) is spawned from the realization that if you want something done exactly the way you want it, you need to do it yourself and we did just that.
We took our 16 years of knowledge as the market's lead retailer, our network of 300+ superior manufactures, we work with top innovators in the firearm industry who inspires, combined with the vision to invest into the Airsoft industry we believe in, EMG was born.

California residents click here for Proposition 65 warning

3 Customer Reviews

(Write a review)

by Kevin N. on 03/01/2018
"Hello Airsofters

I have found that if you set the threaded end cap within the threaded hole ( after inserting the 12 gr. co2cartrige hold the mag with the feed spring
facing you put the hex cap into the hole, put your forefinger and your middle finger over the cap with the hex hole showing and gently rock the end cap side to side you will feel it grab thread on the lower side. keeping your fingers in place insert the long end of the hex wrench into the hole in the cap and very gently start to screw the cap in you will either feel it grab the thread evenly or not .
I f it does not, do not force it but rock the end cap again until it grabs the thread. It really does not take as long as it sounds but it works.
Kevin Neel
by Dan G. on 04/10/2017
"Good mags so far, only a couple of drawbacks; one is the allen key needed to tighten CO2 cap is NOT included (which is why I knocked off a star) and its a smaller size than used by KWC...

I'm getting up to 85 shots per mag, which is real nice- in my stock WE G18c.

The other drawback is I had to trim some flash off the inside of the feed lips (yes, they had to be removed to do this). Its easy but shouldn't be required on a new item.

I trimmed the follower shuttle (plastic bar that rides inside follower spring) down to increase capacity to 17bb (to match capacity shown on back of mag) and it can be removed completely to allow a max of 25bb.

YT vid: WE-G-Series EMG SAI CO2 Mag Fix+Mod
by Anthony V. on 03/20/2017
"This mag works great, base plate is a little funky IMO though. Other reviews have stated quickly/instantly stripping the threads where you tighten the CO2 into the magazine. I went into this knowing that was a potential problem, and let me tell you the second I tried to install a CO2 I saw why! When you first start to tighten the cap for the CO2 into the mag only ONE thread is engaging, meaning the entire load is on a tiny .5mm strip of pot metal! No wonder this strips! I'm still working on a permanent solution but what I have been doing in the interim is using a longer allen key to reach through the cap and apply downward force directly onto the C02 as I tighten the cap, this prevents the caps threads itself from being what drive the CO2 down to puncture and takes the stress away from the weak threads. This is a bit of a pain and makes CO2 changes less than drama free but it works. Once the C02 is in the magazine feeds great and has a great kick with the added pressure of CO2. On my Xcortech X3200 Mk3 I showed a 30FPS increase with .2g bb's between green gas and CO2 on my WE G19. Also, they state this is a 15 round magazine, the only thing limiting this mag to 15 rounds is a small plastic bar installed under the magazine follower, this can be VERY easily removed to return this mag to the 25 round capacity of its green gas counterpart.

All in all everything is great about this mag, if WE had increased the initial thread engagement of the cap this would be a perfect CO2 mag, unfortunately with that one flaw WE definitely missed the mark. I would still recommend these mags just keep that problem in mind.

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