[johnnyrico]

So thanks to all those who helped me find an M14 Disassembly guide. Our gun tech would have been lost without it. :cheers:

I am mostly posting this as an informational post of our experience putting the following upgrades into my TM M14.

So our gun tech and I were talking it over about what I should put into my M14. We wanted to stay around the 350ish fps mark because we did not want to stress the stock gears.

We chose the following Items:

Classic Army Reinforced Piston
Classic Army 6mm Oily Steel Bushing
Systema Silicon Piston Head with Bearing for All
Prometheus Non-Liner Spring MS100

Before the upgrade it was shooting 290 fps with .20's. With that spring we figured that it would put out around 350ish with .20's.

Well. We were wrong.

With the above parts it is now putting out ~404 fps. with .20's.

Now I did read on some reviews that there was room for improvement in the air seal area of the M14, but we did not think it would make quite that much of an improvement.

We actually used the original O-ring that came with the Marui cause it made a better seal than the new O-ring that came with the piston head.

I am using an 8.4V 2400 Mah Ni-Cd Battery. After the upgrade the rate of fire did not seem to suffer at all as a result of the stronger spring. Our chrono indicated 12 bb's per second as to 13 bb's per second before the upgrade.

This alone more than anything seems to indicate that the piston head made most of the difference? True? False?

Now that, I have all that out of the way. Should I be concerned?

Does the longer barrel of the m14 make that much of a difference?

Is the prometheus spring that much stronger?

Is it the better air seal of the new piston head?

Or is it a bit of all of the above.

Mostly Should I be worried about the future of my gears?

Or is this a mild upgrade as we first thought?

Thanks everybody for your thoughts on this.