Dalno

Here's my MP7, I've used it for a couple of games and am loving it so far. Couple of external attachments but have yet to tinker with the internals. I do worry about common issues such as nozzles and backplates cracking but have had no issue yet, so am wondering if I should get spares handy or are there worthwhile upgrades/fixes?

Anyways, I carried out a few tests on the chrono and here are my results.
I was surprised to see a gain of around 25fps when increasing the hop-up from off to fully on. I expected it to decrease due to the friction but I imagine it actually creates a better airseal therefore more FPS? I confirmed this with my MWS too.
Also to note ASG Ultrair gave around 15fps lower compared with Nuprol 2.0 so that is handy to know if you chrono above 350 on a hot day this summer.


I will be carrying out some range testing this weekend with a range of BB weights from .2g to .4g so will report back on that!

Check www.mechbox.com, watch the tutorial videos.. as for keeping screws safe, make a paper cut-out of the gearbox or gun and put the screws through the paper at the corresponding location. Will keep things neat and tidy.

Here's my MP7, I've used it for a couple of games and am loving it so far. Couple of external attachments but have yet to tinker with the internals. I do worry about common issues such as nozzles and backplates cracking but have had no issue yet, so am wondering if I should get spares handy or are there worthwhile upgrades/fixes?

Anyways, I carried out a few tests on the chrono and here are my results.
I was surprised to see a gain of around 25fps when increasing the hop-up from off to fully on. I expected it to decrease due to the friction but I imagine it actually creates a better airseal therefore more FPS? I confirmed this with my MWS too.
Also to note ASG Ultrair gave around 15fps lower compared with Nuprol 2.0 so that is handy to know if you chrono above 350 on a hot day this summer.


I will be carrying out some range testing this weekend with a range of BB weights from .2g to .4g so will report back on that!

Yes shorten the barrel, install an NPAS or just use a lower power gas like R144a

The bolt has to be forward 

Spray soapy water onto the seals and look for bubbles

Excellent post, I am going to order a set of these this week. Have you had a chance to skirmish with them yet? Any fogging issues?

Hey all, I just recently picked up this Glock19 and cannot find any brand identifying markings on it anywhere. It is probably around 10 years old and was told it is a TM. Help appreciated.
Also side note, does anywhere sell replacement iron sights? As the front one is missing. Thanks

I am pretty set on the ICS MP5 just have to wait until sites reopen to get my UKARA then fingers crossed it will be in stock. Thanks for the link to that video CrackCommandoUnit1972

Check www.mechbox.com, watch the tutorial videos.. as for keeping screws safe, make a paper cut-out of the gearbox or gun and put the screws through the paper at the corresponding location. Will keep things neat and tidy.