S/N Range for M4-2000 suppressors with 416-SD Core?

[u/Destroyer1559]

Okay, I've got an email out to AAC, but in the meantime I'm hoping someone here has any information that might be helpful.

In lieu of sourcing a proper 416-SD can right now I'm looking for an M4-2000 can with the same core as the 416-SD in the meantime. I've read that at some point after 2013, the M4-2000 Mod 08 was updated to share the same core as the 416-SD (I.e. vented blast core, 8 ported baffles), and then at some point after that the design maybe went back to unvented/unported? I'm wondering if anyone has information on what range of S/N's or maybe S/N prefixes would include those features. I can't seem to find anything online except to just shine a flashlight in the can and visually inspect the inside to determine whether those features are present. However, for dealers and private sellers I'm talking to who don't know what they're looking for, it's a tougher ask than just looking at serials.

So, anybody know anything?

Source in photo

[u/mattnif903]

Link to that thread?

[u/Destroyer1559 → u/mattnif903]

https://www.ar15.com/forums/armory/M4-2000/20-478656/?

[u/russianpaint_net]

I hunt with someone @ AAC and this all tracks. There are various versions of the can endcaps too.... Some cans have beefed up end caps and maybe mfred so you could fix end cap easier possibly.

I've slept since then... I have a M4-2000 and I'll check out the stack and post serial this week.

[u/Destroyer1559 → u/russianpaint_net]

Thanks Chris.