KWA I-37 Magazine Release Valve
The KWA I-37 is the gas release valve for all KWA LM4 magazines and all AKG series magazines.

What the I-37 Release Valve fits
Fits all KWA LM4 magazines and all AKG series magazines.
| Model | All parts |
|---|---|
| LM4 series magazines | LM4 series magazines parts |
| AKG 74M magazines | AKG 74M magazines parts |
| AKG 74SU magazines | AKG 74SU magazines parts |
| AKG KCR magazines | AKG KCR magazines parts |
What the I-37 Release Valve does
What it does
The release valve opens for a moment each time the gun fires, letting out the gas that sends the BB and cycles the bolt.
When to replace it
- Gas leaks from the top of the magazine
- Weak blowback or low FPS on a full magazine
- The valve sticks instead of opening and closing freely
Remove and install it with the KWA LM4 and AKG Valve Key. Empty all gas from the magazine first.
Often replaced together
Small parts wear together. Order them in one go and save a second wait.



Order the right part the first time
- Open Manuals & diagrams and find your model’s exploded diagram.
- Find part 19, 246 or 231 on the diagram.
- Check the number against the table above, then add the part to your cart. Order by KWA part code I-37 (SKU 199-9999-I037).
Work on an unloaded gun with the magazine out and no gas in it. If you are not sure about taking your gun apart, ask KWA support before you start.
I-37 Release Valve specs
| KWA part code | I-37 |
|---|---|
| SKU | 199-9999-I037 |
| Sold | Individually |
I-37 Release Valve FAQ
Which KWA models does the I-37 Release Valve fit?
All KWA LM4 magazines and all AKG series magazines.
Is it sold individually?
Yes. Each order quantity is one part.
Do I earn KWA Rewards points on parts?
Yes. KWA Rewards members earn 1 point for every $1 on orders of $50 or more, and 50 points = $1 in store credit. Parts, magazines and gas all count toward the order total. See KWA Rewards.

