NEW Comparison Chart of Commercial M4 Pattern Carbines

[rob_s]

what does the "1" stand for under spikes tactical's MPI barrel testing? Does that mean they only test 1 per batch? Or was that ment to be 100% but a mistake was made?

I ask because under HPT Bolt testing for SIONICS, you put Samples, so if spikes only takes batch or sample testing for their MPI barrel tests, i assumed it would say the same. (Samples).

Just like the bolt issue, it was simply a formatting problem.

[mtdawg169]

no.

..

Not for commercial sales.

Great job on the new chart Rob. There will of course be no shortage of naysayers and criticism, but such is life on the internet!

[Boss Hogg]

Do they make an M4?

An M4 doesn't have a 16" barrel.

Useful specifications to have nonetheless for those purchasing 14.5" and 16" midlengths. Thanks for taking time to put this together.

[badness]

Just like the bolt issue, it was simply a formatting problem.

ok. Thanks for the time consuming work involved with putting this together....


Again.

[CRab]

Is this going to be published in Google Docs rather than just public?

[Quentin]

Excellent work Rob! Thanks again for sharing all your hard work.

[MistoGators]

Thanks for all of your hard work Rob.
lol already people bitching about it on Glock Talk (no surprise though).

[curlyburns5]

Rob, thank you for all of your diligence and hard work put into this new chart. Having used the old one as a noob, I know that this will be a very valuable resource for those in the future that are looking at becoming a part of our community. I also copy and pasted the chart and e of f together into one rather large jpeg if anyone needs it while they are offline. You can message me and I will email it to you if anyone wants it.

Thanks again Rob!

[Magic_Salad0892]

Did Stag step up their game?...

[Eurodriver]

Did Stag step up their game?...

Everyone did.

The chart might as well remove Sionics and say "Here is a list of all manufacturers that produce mil-spec AR15s."

It would be easier than listing all the materials, production methods, inspection processes etc. The chart and its subsequent aftermath on forums like this has made producing a 1/9 twist bbl, non-HP/MPI tested bolt AR15 bad business sense.

So now, in essence, we just have a chart where everything is 95%+ the same.