Not Judging! I am the same hence the pinned can.
1:7 M4 HBAR SOCOM Barrel Sale $189
- Thread starter grimnar15
- Start date
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Not Judging! I am the same hence the pinned can.
clandestine
AR-15 Savant
I just did a physical on one. It didn't go well.
Video will be uploaded tonight in my Facebook Group or in the early AM.
Video will be uploaded tonight in my Facebook Group or in the early AM.
DutchV
Ultimate Member
- Jul 8, 2012
- 4,722
Chad's inspection video:
Interesting move - sounds like a nicely refined build.
My HD/SHTF rifle is a DDM4V7p in 5.56 that is currently waiting on a Form 1 to throw a stock on it. I run it dedicated suppressed, but it will be a 2 stamper. The ATF only had 300blk as the caliber option for this model, so i'm waiting on a "pending research" status before I can submit prints/CLEO.
I run a Spikes T3 buffer (5.4oz) and sprinco blue and it's still got about 2pm ejection with full power ammo. This is with the updated DD gas port also.
DutchV
Ultimate Member
- Jul 8, 2012
- 4,722
Headspace and throat are correct for 5.56; throat and muzzle erosion are good; muzzle threads are concentric. Front sight base properly aligned. Barrel extension is timed properly.
Downside: There's some corrosion in the barrel that goes through the chrome, so it's not likely to be very accurate. Chad says it'll probably meet the milspec 4 MOA standard.
This is going into a "spare parts, truck gun" build, so I'm not too worried about it.
Thank you.
Was this a new barrel?
Yea. Chad had to cut the original plastic packaging open to get to it. That kind of pitting looked pretty bad, although I do not have enough experience to really grade that kind of thing. I would not be thrilled, though.
DutchV
Ultimate Member
- Jul 8, 2012
- 4,722
It was as new (surplus) as any of them are.
I opened the outer & inner boxes to make sure there was a barrel inside, and shipped it off to Chad, since he had expressed interest in doing a physical. The factory box looked fine, and so did the bag. So I've got no idea when it became corroded. It even had a wick in the barrel. I will note that I got a fresh surplus M7 bayonet once that was similar. Packaging looked fine but the steel was rusty.
Not much to be done now except shoot it and see how it performs.
Randy Wood
Member
- Jan 30, 2010
- 42
chino101, thanks for the pics. Let's hope that DutchV's experience was an isolated incident. The rest of Chad's physical inspection was very positive.
Thread revival. Back in stock.
Straight from the manufacturer: https://mmcarmory.com/AR-15-556-NATO-145-AR-Barrel-Designed-To-Military-Specifications_p_25521.html
Straight from the manufacturer: https://mmcarmory.com/AR-15-556-NATO-145-AR-Barrel-Designed-To-Military-Specifications_p_25521.html
Magnumite
Ultimate Member
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DutchV
Ultimate Member
- Jul 8, 2012
- 4,722
I bought a second barrel and checked it myself. No corrosion, and the rest of the specs were good as well.
I do not see where it says HBAR and that profile is not what you typically see on an HBAR and definitely not from what I've seen in a Colt HBAR which gives the exception to the AR ban.
DutchV
Ultimate Member
- Jul 8, 2012
- 4,722
From the website:
"This barrel machined from CroMoV Steel, features heavy barrel contour, has a Black Phosphate Finish and includes a Chromium Plated Chamber and Bore (Chrome Lined). "
Note: "features heavy barrel contour" etc.
Sorry, focused on the specifications and the photos only.
I'm skeptical on this though. The back half is HBAR compared to the colt barrel but not the front half in front of the gas block.
DutchV
Ultimate Member
- Jul 8, 2012
- 4,722
To my knowledge, MD code says the barrel has to be advertised as heavy, but makes no mention of dimensions that qualify.
