I have seen plenty of barrels sold by DSG that had out of spec gas ports and barrels that were not dimpled for use with low profile gas blocks. The most recent ones were in my class in Ft. Worth, TX.
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Roughly how many barrels sold by DSG have you seen with issues? Who manufactured them? From your post I get the impression that there was more than one DSG sourced barrel issue in your recent class? This is interesting; thanks for providing more data so the OP can make an informed decision. I'm surprised by this.
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4 barrels in the last class were all purchased from DSG. None of them were dimpled for use with a low pro gas block. Two of them had enlarged gas ports.
It doesn't matter who manufactured them. Companies like Midway USA, Brownells, and DSG purchase barrels, BCG's and other components in bulk and their only consideration is how much they pay for item xxxx and how much money they will make.
This is why they sell crap like AR Stoner BCG's, YHM barrels, uppers without M4 feedramps, etc...
4140 and 4150 have the same specs.
Tempted to try one of these, but I may just hold out for an AAC instead.
Because they aren't the same, hence the price difference. There is slightly more Carbon in 4150, which translates to roughly a 3% cost delta as compared to 4140.
Note how 4140 has .40% carbon and 4150 has .50% carbon......the numbers in those designations have meaning, otherwise they would all be the same designation.
Quote:
SAE 4140 and 4150 have carbon contents averaging 0.40 percent and 0.50 percent, respectively. SAE 4140 has a tensile strength of 655 megapascals and SAE 4150 a tensile strength of 729.5 megapascals. Manufacturers use SAE 4140 for making average size automotive parts, such as axle shafts, propeller shafts and steering knuckles. SAE 4150 is used primarily for gears and other parts requiring hardness, strength and toughness.
For what you are actually paying for, I would stand by the point that this is an excellent deal. As has been mentioned, you cannot purchase or build this for less, not even close percentage wise.
I personally have had zero issues with DSG Arms, be it BCG's, barrels etc or any product I have purchased from them. This is the first barrel being mentioned as a DSG special product that I am aware of. All other barrels are direct from and advertised as other manufacturers and DSG is not just a supplier but a major wholesaler and GSA in the business. I have never seen or heard of them taking "seconds" from any manufacturer. Within the past couple of years I have been using the DSG branded line of products and am more than pleased. Just ordered 10 of their inner / outer belts this past week. Ordered late afternoon their time, $5 flat rate USPS. Showed up before lunch the next day. For those that know where I am located that is unheard of.
In any case, I personally would not order one as I have numerous barrels and a few rails sitting right now and don't really care for keymod so much. But if you need a very good upper at a heck of a price, this IMO looks to be a heck of a good option. But if your barrel needs to be 4150 or MIL-B-11595E, well obviously this is not the set up for you, but that does not diminish the fact that it is a heck of a priced upper, for what you are purchasing.
I will also note that I have zero affiliation with DSG Arms. Just a very long time satisfied customer.
I'm really tempted by this deal, but I need to prioritize my spending this week. Though if I hadn't just picked up an AAC 300blk barrel, I think I'd have to get the 10" 300blk upper from DSG.
I have been strongly considering DSGs 10" 5.56 upper in this deal vs building another 11.5. For those that want 4150, Radical firearms has this deal plus 10% off right now but it doesn't have. CH or BCG. Anyone have experience with radical firearms? Website states barrel is 4150 mpi/hpt melonite finish 1:7 twist. Same 10" seekins rail as the DSG upper.
http://www.radicalfirearms.com/Produ...105M4&CartID=1