DD MK 18 and DD M4 V7

[Stickman]

What exactly do people mean by "reduced gas port"? Are referring to the barrels that are now using what should have been correct all along (Crane Spec) or something else?

Correct vs Incorrect is what it sounds like.

Does anyone have a time frame as to when the issue was corrected? My understanding is that there were two sets of barrels going out, one with, and one without the correct and smaller gas port.

[Iraqgunz]

I think you missed my point.

I (personally) am referring to currently sold DD MK 18's and Pistols, DD M4 V7 Pistols and DD SBR's; my recently purchased 2018 DD M4 V7 Pat is running trouble free with MEM 56 Grain 5.56, Black Hills SMK 77 grain 5.56 OTM 5.56, IMI 77 Grain SMK OTM 5.56, Magtech 55 Grain 5.56 FMJ M193, and Magtech 77 Grain 5.56 OTM First Defense.ammunition. It is my understanding that older models were described as having larger gas ports; some were changing buffers, springs, etc. Mine is making me very happy; I have not felt the need to make adjustments. I like to know how similar DD firearms owned by other forum members are performing.

[Iraqgunz]

As I recall, it was late summer early Fall 2017.

Correct vs Incorrect is what it sounds like.

Does anyone have a time frame as to when the issue was corrected? My understanding is that there were two sets of barrels going out, one with, and one without the correct and smaller gas port.

[prepare]

Gas port size should be included with all the other specs.