CORE 15-U.S. made AR's

[prepper4lyf]

Definitely looks like there is a problem chambering a round on a fresh mag when the gun starts to get hot which is why he has to use the charging handle.

I couldn't really tell from the video, but was this the DI or gas piston model he was using? I've had limited experience with gas piston system, but I've been told the chamber stays a lot cooler than with a DI system (in addition to being a lot cleaner as well.) This means that the bolt and carrier stay cooler as well, making it more reliable. Anyone want to back this up?

Also along the same lines, I've heard that an open bolt system keeps the chamber cooler as well, but I don't think I've seen an open bolt system on an AR...

[Nine]

Loving that optic! I was having a hard time finding a decent pic of it mounted.

Here are some in house pics....



Gary

[sigsauer226]

Sig is the flash hider on yours welded on or removable?? Im torn between the DDM4 V5 the Core M4 MOE and the Stag 2T-R at the moment!

It is threaded on and removable. I just got back from Calgary Shooting Centre and another 100 rounds of AE 55gr and no issues whatsoever. There is very little in the way of carbon either in the chamber or on the bolt. I know 100 rounds is not a lot, but it is still very clean. Here is a typical target offhand 25m using a 1x Strikfire..

[Rock Out w/ Ur Glock Out]

I dont get why these rifles and the Stags have threaded flash hiders and the DD's have to be welded on. They're all imported and are subject to the same reg's.

[sigsauer226]

Would the DD barrels be under 16.5" if the flash hiders could be removed?

[Rock Out w/ Ur Glock Out]

Im assuming so. The barrel is in and of itself 16". Technically the flash hider should not contribute as part of the barrel length IIRC. Not sure about when its welded on though if its counts towards bbl length.

[Rock Out w/ Ur Glock Out]

Either way the price point of the Core makes it very tempting. Never shot or held either of the 3 (DD, Stag, Core) but the Core's reviews seem good and it has the advantage of already having all the Mag-pul sh*t I would want to be putting on it anyways!!

[sigsauer226]

The flash hider contributes to the overall barrel length when it is non removable. That is how US companies are able to export under ITAR with a barrel under 16.5.

[Rock Out w/ Ur Glock Out]

So how is it that your Core has a removable FH then?

[sigsauer226]

Good point. Just re-checked and the minimum is 16"afterall. Best to ask the manufacturer directly. Could be a condition of their particular export agreement. Just like some manufacturers won't export barrels with M203 cutouts or bayonet lugs. The CORE has both. I gave up trying to impart logic when it come to firearms regulations a long time ago.