LM4 PTR Series 40 Round Magazine
$60.00
Gas Magazine|Rifle|40 Rounds
- Fits the LM4 PTR and LM4D series, including the LM4 KR series
- Holds 40 rounds of 6mm BBs
- KWA Rewards: earn 60 points ($1.20 store credit). How it works
- Free shipping on orders over $200 (contiguous US).
KWA LM4 PTR Series 40-Round Magazine
The KWA LM4 PTR Series 40-round magazine is the green gas magazine for KWA’s LM4 PTR and LM4D gas rifles, including the LM4 KR series.
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This item is out of stock right now. These fit the same KWA models.
KWA Rewards
Earn 60 points on this item, worth $1.20 in store credit. New members get 100 points for signing up and 500 bonus points on their first order.
How KWA Rewards worksPay over time
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Orders over $200 ship free in the contiguous US. Stock up on spares with your next order.
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What the LM4 PTR Series 40-Round Magazine fits
| Fits | Notes |
|---|---|
| LM4D 10.5-inch Gas Rifle | Standard magazine |
| LM4D M-LOK Gas Rifle | Standard magazine |
| LM4D RIS PTR | LM4 PTR series |
| LM4 KR series | LM4 PTR series |
Need a different magazine? See the KWA magazine compatibility chart for every KWA magazine and the guns it fits.
About the LM4 PTR Series 40-Round Magazine
- Holds 40 rounds
- Green gas
- Standard magazine for the LM4D rifles
- Replacement wear-and-tear parts available
LM4 PTR Series 40-Round Magazine specs
| Capacity | 40 rounds |
|---|---|
| Power | Green gas |
| Type | Gas blowback rifle magazine |
| Fits | LM4D 10.5-inch Gas Rifle, LM4D M-LOK Gas Rifle, LM4D RIS PTR, LM4 KR series |
| SKU | 197-03201 |
Using the LM4 PTR Series 40-Round Magazine
Filling an LM4 magazine
Inspect the magazine first. If gas is still inside, release it with the valve at the top rear, and keep clear of the escaping gas.
- Hold the magazine upside down (floor plate up) and the green gas can upside down and vertical, with the fill needle pointing down.
- Fill for about 30–40 seconds. Listen for a faint hiss while it fills.
- Prime the magazine now and then by pressing the release valve as you first insert the fill needle. This reduces air pockets.
- Magazines get cold after shooting. A pouch or pocket helps them return to room temperature.
Care and parts
- Inspect the magazine before each use and before filling. If gas is still inside, release it with the valve at the top rear and stay clear of the cold escaping gas.
- Make sure the feed lips are intact, with no cracks or deformation.
- Check for the small o-ring in the center of the fill valve before filling.
- Press and release the release valve and make sure it opens and closes freely.
- Put a drop of silicone oil on the top of the magazine main seal, just behind the feed lips, so it seals well against the bolt carrier.
LM4 PTR Series 40-Round Magazine FAQ
Which guns does the LM4 PTR 40-round magazine fit?
The LM4D 10.5-inch Gas Rifle, LM4D M-LOK Gas Rifle, LM4D RIS PTR and LM4 KR series.
How many BBs does it hold?
40 rounds.
Is there a dry-fire version?
Yes. The LM4D Series AGM 40-round magazine adds a dry-fire function.
Do I earn KWA Rewards points on the LM4 PTR Series 40-Round Magazine?
Yes. KWA Rewards members earn 1 point for every $1 on orders of $50 or more, so the LM4 PTR Series 40-Round Magazine adds about 60 points, worth $1.20 in store credit (50 points = $1). See KWA Rewards.
| Weight | 1.5 lbs |
|---|---|
| Dimensions | 7.5 × 3.5 × 1.5 in |
| Accessories | Magazine |
| Mag Type | Gas, M4/AR15 |
| Rounds | 40 |
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