GBB M4 steel parts(internal)

[huang]

What is this?

[Daiviet]

Ra-Tech negative pressure adjustment system. It's a nozzle that adjusts FPS.

[ILLusion]

It goes inside the bolt. It is essentially the valving system that controls the gas flow.

The little piece in between the tool and the spring could also be called the "floating valve", but RA-Tech calls it a "flute valve". This part has a million names, but serves the same purpose, and that is to close the flow of gas to the barrel once the projectile leaves the muzzle and redirects all gas pressure to the blowback cycle.

[RacingManiac]

Originally Posted by huang

I think G&P steel parts are cast too. CNC steel is not worthy for small parts since they intend to be cheap.

Hammer and sear and even the bolt stop on the G&P are all wire EDM parts....the bolt stop you can still see some of the wire pass on it. G&P bolt is cast aluminum, but I am not using that anyhow. The trigger looks cast on G&P, and the selecter looks to be either cast then machined, or just machined....

G&P parts aren't cheap.....

They are cloning the NPAS now too? I guess the design isn't that hard to copy(or new), but sucks to be RA-T that for once come out with something innovative and just to be wholesale copied by the clones....

[Ronan]

Chinese cloning ra-tech and G&P lol...

Ok i give, how much and when.

[Qlong]

Are those steel parts still sitting at customs?

[spartan117]

Those look ok. For the metal bodies, will they be able to fit a standard AGM m4 buffer tube?

[kullwarrior]

Originally Posted by RacingManiac

They are cloning the NPAS now too? I guess the design isn't that hard to copy(or new), but sucks to be RA-T that for once come out with something innovative and just to be wholesale copied by the clones....

Words have it JDT just got a Burst Trigger kit to be cloned, I'll still support RA-Tech no doubt about that (after all its my home country, same city as my mother's home town, and my mom's friend of friend is in RA-Tech concidentally)

Only one thing I will say, if you want CO2 Mag, then support the innovation, if you don't care, go with imitations. RA-Tech is seriously evaluating whether or not to make CO2 Mag or GHK Mag Conversion. Their reason; burst trigger reported to be clone.