KWA C-10 Hop-Up Tensioner
The KWA C-10 hop-up tensioner fits multiple KWA models, including the LM4 gas rifles and the kz.61 Skorpion. Replacing it helps restore hop-up function.

What the C-10 Hop-Up Tensioner fits
Match the diagram number in your model’s exploded diagram to be sure you order the right part.
| Model | Diagram no. | All parts |
|---|---|---|
| kz.61 Skorpion | 127 | kz.61 Skorpion parts |
| LM4 PTR | 99 | LM4 PTR parts |
| LM4C PTR | 99 | LM4C PTR parts |
What the C-10 Hop-Up Tensioner does
What it does
The hop-up tensioner presses on the hop-up bucking to set how much backspin each BB gets.
When to replace it
- Hop-up feels inconsistent or will not hold its setting
- The tensioner is worn or deformed
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 the part on the diagram and note its number.
- Check the number against the table above, then add the part to your cart. Order by KWA part code C-10 (SKU 199-9999-C010).
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.
C-10 Hop-Up Tensioner specs
| KWA part code | C-10 |
|---|---|
| SKU | 199-9999-C010 |
| Sold | Individually |
C-10 Hop-Up Tensioner FAQ
Which KWA models does the C-10 Hop-Up Tensioner fit?
The kz.61 Skorpion, LM4 PTR and LM4C PTR.
What is the C-10 Hop-Up Tensioner diagram number?
It depends on the model: kz.61 Skorpion part 127; LM4 PTR part 99; LM4C PTR part 99. Find your model’s exploded diagram in Manuals & diagrams.
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.


