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[jiffx2781]

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[Mildwood]

Those pics are crazy, cant believe they would let that through QC. Mine is in the high 400's and the quality is way better. Guess mine was a lucky one, zero issues during assembly. Only have 15 shots through the pipe mind you.

[MiniMe]

My MDI set came with several issues, 3 of them I'd be able to fix myself but there are 2 that bother me so I'm sending it back.

1 - barrel won't fit the upper (I just tried freezing the barrel and heating the upper)
2 - BCG feels lose inside the upper, it rattles, I'm not sure how lose it can be without issue, but compared to my AR it is very loose. You can move it sideways with your fingers through the ejection port.

When I first saw the MS I thought of cancelling my MDI pre-order and ordering a MS, but MDI was promised to an earlier date. If I had vaguest idea of the issues and delays I'd have done it.

[hawk-i]

Macarobbi or ATRS modern sporter....looks like an easy choice.
To bad ATRS can't up their production.

[Ric3hat]

But then I noticed a couple issues with the machining:

Attachment 265877
And then there's this ^^^ Not quite sure what happened here

Correct me if I'm wrong, but isn't the smaller screw suppose to retain the larger takedown screw? Doesn't look like there's enough overlap to retain that takedown screw

But that magwell though...

[Mildwood]

Correct me if I'm wrong, but isn't the smaller screw suppose to retain the larger takedown screw? Doesn't look like there's enough overlap to retain that takedown screw

But that magwell though...

Yes that smaller screw is supposed to do exactly as ypu said.

[scourge18a]

Macarobbi or ATRS modern sporter....looks like an easy choice.
To bad ATRS can't up their production.

Quality takes time and was worth the wait....although I was lucky enough to get in on the first production run.
Super happy with the machining, fit and finish. I literally giggled when I first opened the package.
Assembled 2 uppers. One in 224 Valkyrie and another in 223 Wylde.

[alberta tactical rifle]

I often wondered where Stevie Wonder ever got to, now we know. QC manager at a firearms manufacturer.

On a serious note though, that magwell is almost in-explainable. I have no clue how they are doing their magwells, but they should outsource that to a shop with an EDM. There are a few in town.

[tiriaq]

The problem with machining mag wells either manual or CNC is the corners.
Another Canadian manufacturer would drill the corners, and then mill out the rest. This leaves the metal at the corners very, very thin. In the event of a case failure, pressure can get vented down through the magazine. Very thin metal means the lower receiver will break, not bulge.
Broaching or EDM produce the best results.

[alberta tactical rifle]

The problem with machining mag wells either manual or CNC is the corners.
Another Canadian manufacturer would drill the corners, and then mill out the rest. This leaves the metal at the corners very, very thin. In the event of a case failure, pressure can get vented down through the magazine. Very thin metal means the lower receiver will break, not bulge.
Broaching or EDM produce the best results.

Agreed 100% The cost is higher to wire EDM as it is a time consuming process and the consumables are expensive but the end results are far better. A proper broach can cost several thousand dollars to have made and "should" do many many lowers assuming nothing goes wrong.