air nozzle: MP5 vs M4

[devbro]

I have gotten my hands on a MP5 in pieces. I have figured out most of it and used a few extra mini parts from my M4 salvage parts. One particular extra I used was a M4 air nozzle.

Now that I have the MP5 in a working condition, it dry fires. Maybe I get 1 or 2 out of 10 shots.

So I am curious to know this: Is there any difference between M4 and MP5 air nozzle?

Is there any way to test air nozzle before putting the entire gun back together?

thanks in advance for all you helps.

[EOD Steve]

They are different lengths and thus, affect your ability to feed rounds.

[devbro]

Originally Posted by EOD Steve

They are different lengths and thus, affect your ability to feed rounds.

Thanks for quick reply

If I had a few bunch of air nozzles, is there a way I can tell which one is the MP5 one?

[cetane]

19.63mm - AK Series
20.40mm - MP5-A4/A5/SD5/SD6 Series
20.73mm - P90 Series
20.77mm - M16A1 VN/XM177E2/CAR-15 Series
20.96mm - LMG Series
21.05mm - MP5-K/PDW Series
21.13mm - PSG-1 Series
21.20mm - G3-A3/A4/SG-1/MC51 Series
21.22mm - M16A2/M4A1/SR16 Series
22.26mm - SIG 550/551/552 Series
24.27mm - G36 Series
24.60mm - AUG Series
24.61mm - M14 Series

From >https://airlab.parts/products/lonex-air-seal-nozzle

Don't know how accurate it is. I had a list bookmarked that was more detailed/accurate but can't find it on my phone.