M&P Bar-Sto Barrel from Apex Tactical preview pic

[nickdrak]

Interesting, it looks like the barrel hood isnt slightly ramped like the factory barrels are. Could that be what keeps it locked-up for slightly longer???

[Wayne Dobbs]

Interesting, it looks like the barrel hood isnt slightly ramped like the factory barrels are. Could that be what keeps it locked-up for slightly longer???

That plus I imagine there is a dimensional tweak on the lower lug assembly also. I understand that Randy has considerably increased the barrel/slide dwell time on this project.

[ilsrwy27]

Nice to see someone releasing a product that addresses the M&P9 accuracy issues some have ran into.
Two questions: does the M&P9c suffer from the same accuracy problem as the 9mm service model?
If so does Bar Sto plan on making a barrel for the M&P9c available at some point in time?

[Randy Lee]

That plus I imagine there is a dimensional tweak on the lower lug assembly also. I understand that Randy has considerably increased the barrel/slide dwell time on this project.

Hi guys,

Wayne is spot on. Now that all the chaos bringing out the forward set sear is over, I can talk about the barrel.
It started out as an oversized blank I received from Irv. The external chamber and hood dimensions (other than some cosmetic cuts on top) are nearly identical to the Glock barrels so we ran with the same dimensions Irv uses for his M/T Glock barrels. It was the fastest way I could think of to get the project off and running.

I began cutting the bottom lug to achieve the absolute maximum slide/barrel dwell time. The prototype maintains mechanical lockup for roughly .160" of rearward slide travel. This is roughly 2x the dwell distance that a match fit 1911 has. I got the gun functional Sunday at 5:30 pm and Scott and I made a bee line to the range.
We only had enough time to shoot a few rounds at about 13 yards.
Not enough for any conclusive data, but I can tell you the the barrel shoots consistently better off hand groups than either of our 5" guns. Due to the increased dwell time, the gun's recoil impulse is as soft as our 9Ls which have heavier slides.

I am going to use .100" as my target dwell distance as I think .160" is unnecessary. My next step is to have three 5 inch barrels made from a rather expensive Krieger barrel blank. Once I am satisfied with the barrel performance, the dimension and CAD files will be sent to Irv for production.

I will provide more accuracy data as soon as it stops raining, and I can get out to the 25 and 50 yd ranges.

-Randy

[Randy Lee]

Nice to see someone releasing a product that addresses the M&P9 accuracy issues some have ran into.
Two questions: does the M&P9c suffer from the same accuracy problem as the 9mm service model?
If so does Bar Sto plan on making a barrel for the M&P9c available at some point in time?

I have not heard of as many complaints regarding the 9c, mostly fs and 5" guns. That may be due to the fact that more people are shooing the longer guns in training/competition than the compacts.

Knowing Irv, he will probably make most if not all of the barrel configurations.
Including threaded versions.

-Randy

[ilsrwy27]

I have not heard of as many complaints regarding the 9c, mostly fs and 5" guns. That may be due to the fact that more people are shooing the longer guns in training/competition than the compacts.

Knowing Irv, he will probably make most if not all of the barrel configurations.
Including threaded versions.

-Randy

Thanks for your answer, I can't wait for the accuracy data of the new barrels.

[R Moran]

I have not heard of as many complaints regarding the 9c, mostly fs and 5" guns. That may be due to the fact that more people are shooing the longer guns in training/competition than the compacts.

Knowing Irv, he will probably make most if not all of the barrel configurations.
Including threaded versions.

-Randy

A .40?

And while your at it, how about an extended thumb safety?

Bob

[Randy Lee]

A .40?

And while your at it, how about an extended thumb safety?

Bob

Aaaaaaaaaagggggghhhhhhhhhhh!!!!

Maybe.

[R Moran]

Aaaaaaaaaagggggghhhhhhhhhhh!!!!

Maybe.

Well which one, the .40 bar sto barrel, or the thumb safety?

Bob

[NeoNeanderthal]

Or both?