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8/13/2025 5:50:53 PM EDT
Are M249 Barrels and M249S Barrels the same? Interchangeable? Or are the different like a semi vs. full Uzi Barrel?
TIA
Strike Hold / BTTB <img src=/images/smilies/smiley_braveheart.gif border=0 align=middle>
8/13/2025 8:42:22 PM EDT
[#1]
They're completely interchangeable. The full-length barrels are the same.
The Para barrels are extended, and also have the muzzle device welded on, to meet the 16" minimum Title I barrel length.
8/14/2025 10:58:46 PM EDT
[#2]
Thank you, appreciate the input.
Strike Hold / BTTB <img src=/images/smilies/smiley_braveheart.gif border=0 align=middle>
8/16/2025 2:44:16 PM EDT
[Last Edit: TonyRumore][Edited] [#3]
If you're talking used barrels, the M249 ones for sale on GunBroker are worn out, the semi barrels are still good.

I would not buy a used M249 barrel unless it's been checked with a throat gauge and head space gauges.

Unfortunately, I have quite a bit of first hand experience here.

Tony

8/17/2025 12:07:06 AM EDT
[Last Edit: ProbableColtAddict][Edited] [#4]
I lucked into an unissued early (fixed carry handle) Belgian made one some years ago.  Good ones are out there, but as stated above, most surplus jobbers are heavily worn.





8/17/2025 1:31:41 PM EDT
[#5]
I've got one of those old fixed handle barrels....but of course, it's used and worn out.  Sold on GunStroker as "Serviceable".  Yeah, not to me.
When I get some time, I'm going to break it down, make a new barrel, and reassemble it with the original parts.

I tried my vintage Elcan M145 optic on my 249, but ended up pulling it off since I did not like having to crawl up on the stock so far.  For me, it just doesn't have enough eye relief to be comfortable.

Tony


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