AR10 bolt disassembly: what is this spring?

[Derek Zeanah]

So I'm reasonably familiar with AR pattern rifles, though all my experience is with 5.56mm rifles.

I found a deal I couldn't turn down on an AR10 from Palmetto State Armory ($600 AR10s? Seriously?), and I decided to disassemble the bolt carrier group and lube things properly during commercials today before I sight this thing in next week.

So I take everything apart, lube the bolt up properly, and start to reassemble it and while putting the extractor back into the bolt this spring fell out:



Now, it looks like it fits inside the other spring(s) in the extractor so maybe it goes there, but I never saw it before it fell out so I figured I'd ask the experts here rather than just guessing.

So, does it go here:



Or does it go somewhere else?

 

[troy fairweather]

So I'm reasonably familiar with AR pattern rifles, though all my experience is with 5.56mm rifles.

I found a deal I couldn't turn down on an AR10 from Palmetto State Armory ($600 AR10s? Seriously?), and I decided to disassemble the bolt carrier group and lube things properly during commercials today before I sight this thing in next week.

So I take everything apart, lube the bolt up properly, and start to reassemble it and while putting the extractor back into the bolt this spring fell out:

View attachment 802055

Now, it looks like it fits inside the other spring(s) in the extractor so maybe it goes there, but I never saw it before it fell out so I figured I'd ask the experts here rather than just guessing.

So, does it go here:

View attachment 802056

Or does it go somewhere else?

yup it goes there it put presser on the extractor put in a drop off grease to hold it in during reassembly.

 

[Derek Zeanah]

Awesome. That's what I expected, but why assume.

 

[troy fairweather]

Awesome. That's what I expected, but why assume.

better to ask the mess it u id love one of them psa ar10s but no one will ship them to new york.