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Originally Posted by juicy
They do? I didn't get one with my MEU.
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No idea if all of them do... but the two that came across my hands came with them as part of an included "spare" parts kit.
Quote:
Originally Posted by juicy
Sure, but then what about on GBBR's (i.e. the Magna platform)? Why is it that people use them on those? Oh wait, we're talking crappy cloning companies, not mid-end reputable manufacturers - right. Maybe this isn't a valid point at all then, lol.
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That's... not *really* the same. You're talking about the bolt. In function, you could say that they technically do the same thing: it contains the gas, forces the "bolt carrier" / "blowback unit" back, and strips off the next round while loading it in to the chamber... but in a Magna based M4 GBBR, the walls of the bolt are MUCH thicker than the loading nozzle of a GBB, and the bolt takes on much more impact (heavy bolt carrier, stronger buffer spring, heavy buffers), and thus, requires the additional strength.
Additionally, these metal bolts on M4 GBBR's are usually made of machined metal rather than craptacular die cast metal.
There ARE die-cast metal bolts out there, but ask AGM clone owners how their awesome metal bolt is holding up. :P (fyi, it's the first part that blows and needs replacing.)
Further: There ARE plastic bolts available for the M4 GBBR Magna platform, but are not widely popular, due to higher wear rate along its rails as well as where the hammer roller contacts. Keep in mind that these bolts travel much greater distances than GBB's, so they do experience a lot more wear than a relatively short stroke GBB. Plastic M4 GBBR bolts are much lighter in weight compared to a machined 6061/7075 aircraft aluminum version, but there is no noticeable difference in performance at all. ROF and gas consumption has been noted to be equal, so might as well go with the tougher and harder wearing (aircraft aluminum) counterpart if you are given that option.
I was going to say that it's an unfair comparison, but not ever having ever tried one of these metal GBB nozzles, it'd be unfair to shoot them down before even seeing it. It would depend on several conditions before I'd give them a go ahead.
m61a1, could you send me a link to this part? Do you have any additional information on the part?