Did you ever run into something that is just SO weird that no one actually believes you?
I appreciate everyones comments- they would be good advice for someone who didn't know much about AR's/16's.
I have carried an M-16 on four different continents. I have participated in (and won) blindfolded disassembly/reassembly contests. I have an EIB, CIB, Jump-wings...I was an E-6(p) when I ETS'd.
I drew a bolt in AutoCAD (a computer drafting program) from memory just for shits and giggles. Much to my suprise, it was within a tenth of an inch when I checked mine with calipers. (Although, to be honest, I was one short on the lugs!)
Anyway, I'm not trying to toot my own horn or anything. I am just trying to re-enforce the fact that I am relatively well aquainted with the function and maitanence of these weapons.
I'm also working on a mechanical engineering degree, and I am a professional draftsmen. I think I'm pretty mechanically inclined, I can usually figure "stuff" out!
It's really irritating that (a)I can't figure it out myself (b)most gunsmiths I've found know little about them, and (c)when I find people who do know 16's, I don't have my weapon with me and I can't make them believe me!
I think I just need to vent about it.
On the bright side, I rarely get a chance to actually shoot the darn thing so it's not all that dirty anyway.
At least 199 had a good idea. The pin is seated all the way back.
Here's all I can figure.
-The cam pin looks like it is within specs, so I've ruled that out.
-The gas key looks a little heavy to me. There is more material on the bottom than I remember. That's what made me wonder if civilian 15's are different from 16's (at least with respect to disassembly as it pertains to this problem)
-The slot in the carrier for the cam pin could be milled short (thanks again 199 for at least an original thought!) but it looks normal
-Granted, either one of these presupposes that the bolt and pin were in place when the gas key was installed. That's what I really don't get. I can see an out of spec component making it out of a factory, happens all the time. But I can't imagine they would assemble and install concurrently.
I've spent so much time, and I keep questioning myself... But it comes down to the fact that on my particular AR-15, I am unable to remove the cam pin, which in turn prevents me from separating the bolt and bolt carrier.
There. I'm done venting. You can write me off as some crazy and/or stupid guy now.