[Caelum]

Ah, no worries about where the gun is being shipped from then. Unfortunately I won't be able to snipe it from you though...

On the new ones (Gen2+), the brass pin is the backside of a brass bolt that holds the bolt release to the internal frame. I'm not sure what color it is on Gen1, or if they even have a bolt/pin there.

The brass pin just marks what generation the gun is.

Gen1 had a bunch of problems, and had a standard WE m4 loading nozzle, which was compatible with the Ratech M4 NPAS.
Gen 2 and newer comes with a steel butt-stock latch, a different nozzle (requires modification to use an NPAS, low flow discs are apparently a good alternative), and a few different reinforced areas.
The magazines are also slightly different, with the rubber gasket near the feed lips sitting just slightly higher, allowing for a better gas seal+ efficiency. I've heard of people just shimming the gasket up a little on the Gen1 mags, although I haven't had to try it.


I got your email. It's a bit tough to tell, but it looks like the brass pin is there, so it should be Gen 2 or newer.

It looks like it is pretty well used, so ask him how the semi-auto is+ if it ever goes full auto uncontrollably. The stock sears aren't made from steel, so they work fine for the most part, but they will wear down. There are aftermarket steel replacements, but they're a bit pricey.