FX FX Impact M4 vs M3 technical comparison and my views YouTube video

I believe if you're running you rear regulator above 150+ bar there is no need for a first/front regulator. The M4 seems to me to be designed with larger plenum for high velocity/slugs.

coastal drifter said:

I believe if you're running you rear regulator above 150+ bar there is no need for a first/front regulator. The M4 seems to me to be designed with larger plenum for high velocity/slugs.

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How much does 3cc of plenum increase fps? 5-10?

Hello,can anyone tell me is difference in power plenum size from M3 to M4 in length or diameter as M3 has 720 and M4 750CCM,iHAVE M4 btw and if anyone has M3 if could measure length and diamter ,cause i need to upgrade some part of plenum and size is a key,thank you very much.

I love both the M3 and the M4. I have quite a few of those and the older Impacts.
The only real issue I've had besides the occasional seal is a real recent purchase, couple week ago, of an M4 from a large retailer.
I purchased an M4 and the thing has had to be sent back because the leak(s) it has. Another 50 dollars of my money to ship it back.
2300 for something that leaks 50bar a day. I'm really curious if it was even looked at and checked for leaks by anyone before it was shipped out to the customer. A brand new gun leaking sent out to a customer is actually ridiculous. I do understand that they can get them in shipment every once in a while, maybe. 3 - 6 weeks to get it fixed and only if they have the parts and might take a lot longer.

athlon_oved said:

I love both the M3 and the M4. I have quite a few of those and the older Impacts.
The only real issue I've had besides the occasional seal is a real recent purchase, couple week ago, of an M4 from a large retailer.
I purchased an M4 and the thing has had to be sent back because the leak(s) it has. Another 50 dollars of my money to ship it back.
2300 for something that leaks 50bar a day. I'm really curious if it was even looked at and checked for leaks by anyone before it was shipped out to the customer. A brand new gun leaking sent out to a customer is actually ridiculous. I do understand that they can get them in shipment every once in a while, maybe. 3 - 6 weeks to get it fixed and only if they have the parts and might take a lot longer.

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I'm surprised you had to pay shipping. The few times I've had to send back a rifle under warranty they emailed me a shipping label