Monsoon Tactical Lucky 7’s barrel porting

[Lon]

In my never ending quest to see what works best or sucks, last year I decided to add another type of port/comp to my collection - the Monsoon Tactical Lucky 7’s barrel porting. Id been following them on IG and some other guys I know like them so I figured I’d give it a try. What was even better - the Lucky 7’s work with a Brownells G19 window slide, which I already had. So for @$100 I had the Lucky 7’s cut in.

MT uses the “order and pay, but hang on to your stuff til we call you” model and it worked great. Timeframe was right what they quoted me. Turn around time from me shopping slide/barrel to them until it was ready to pick up was a week or so. Took me another 10 days to get up there to pick it up (was my choice to pick it up and not ship). I got it last Wednesday and have put 150ish rounds through it. Works great. I’ll do some side by side testing soon. Shot it at a match tonight and I liked it. Maybe better than the Ramjet/Afterburner. Maybe. Needs further testing.

101377
101378
101379
101380

[CCT125US]

Curious what chrono results look like with that.

I know several of the guys from MT, and shoot steel with them during season. They do good work.

[Lon]

Curious what chrono results look like with that.

I know several of the guys from MT, and shoot steel with them during season. They do good work.

I can tell you they don’t feel watered down at all. I’ll try to get a chrono.

[MVS]

These guys seem to like Lucky 7's and in their testing they seemed pretty effective.


https://youtu.be/3xEI36Dtf04

[wmu12071]

I would be very interested in the effects of the porting on velocity. Has anyone seen testing of the velocity before and after porting?

[Jim Watson]

I am manfully resisting the temptation to have a barrel ported now that IDPA allows it.

[EVP]

How is accuracy at further ranges? 25yards, 50yards and beyond?

I saw and read were a monsoon ported barrel was sending bullets tumbiling at further ranges.

[Mirolynmonbro]

I would be very interested in the effects of the porting on velocity. Has anyone seen testing of the velocity before and after porting?

I emailed them a few weeks ago and this was their answer

The Chunk Port on average loses roughly 20-30 fps and the Lucky 7's loses closer to 65fps. Lucky 7's is our softest shooting package

[Lon]

I would be very interested in the effects of the porting on velocity. Has anyone seen testing of the velocity before and after porting?

I’ll do some.

[Lon]

How is accuracy at further ranges? 25yards, 50yards and beyond?

I saw and read were a monsoon ported barrel was sending bullets tumbiling at further ranges.

I’m not the greatest long distance shooter, but I’ll do some at 25.

[Lon]

These guys seem to like Lucky 7's and in their testing they seemed pretty effective.


https://youtu.be/3xEI36Dtf04

Ok. Shouldn’t have watched that. Now I want a ported comp’d barrel. 🤣

[Lon]

Second match with the Lucky 7s. Seems to track better than the Radian.

https://www.instagram.com/p/Co6HEQiMEoC/?igshid=MjkzY2Y1YTY=

[BWT]

These guys seem to like Lucky 7's and in their testing they seemed pretty effective.


https://youtu.be/3xEI36Dtf04

I was just about to post this.

It is tempting. Given I want to continue shooting USPSA and not go open I won’t be doing that.

But man is that tempting.

[MVS]

I was just about to post this.

It is tempting. Given I want to continue shooting USPSA and not go open I won’t be doing that.

But man is that tempting.

Well since I switched to IDPA, I could give it a try.

[crosseyedshooter]

Wasn't barrel porting popular in the 90s? Is the recent resurgence of barrel porting due to popularity of compensators or did someone figure out how to mitigate the issues with barrel porting like copper jacket fragments, reduced muzzle velocity, etc.?

[DaBigBR]

I've got a Q5SF with Lucky Sevens coming on the big brown truck Monday. I already have a couple of guns that they chunk ported. Chunk port works great and I expect nothing less from Lucky Sevens.

[EzGoingKev]

Wasn't barrel porting popular in the 90s? Is the recent resurgence of barrel porting due to popularity of compensators or did someone figure out how to mitigate the issues with barrel porting like copper jacket fragments, reduced muzzle velocity, etc.?
I am wondering about this myself.

IIRC I read a post by Doc Roberts advising they found ported barrels were stripping sections of the copper jacketing from the bullet.

[Mark D]

I would be very interested in the effects of the porting on velocity. Has anyone seen testing of the velocity before and after porting?'


Aaron Cowan addresses that here. Spoiler: his ported G17C loses about 30 fps compared to an identical, non-ported G17.


https://www.youtube.com/watch?v=UqRTHVp6N-c

[Mark D]

Second match with the Lucky 7s. Seems to track better than the Radian.

https://www.instagram.com/p/Co6HEQiMEoC/?igshid=MjkzY2Y1YTY=

Nice shooting Lon!

Question for the group: Has anyone compared the custom porting options to the factory porting in the Gen 3 and Gen 4 G19C and G17C ?

[Jim Watson]

I am wondering about this myself.

IIRC I read a post by Doc Roberts advising they found ported barrels were stripping sections of the copper jacketing from the bullet.

That does not sound good for the coated bullets I use.

[DaBigBR]

Got my Lucky Sevens ported Q5SF yesterday and took it to the range today. Shot my personal best Bill Drill (1.71) and 3&2 (1.57) with it. It's very flat and soft. Much less abrupt than the Genghis Komp from Monsoon. This matches what they say in their material.

I've got a 34 Gen 4 that's not doing anything for me, so since I can have that done for just the cost of barrel work, I suppose I'll have to.

[Lon]

Shot another match tonight. Did some spring tuning. Installed a reduced power striker spring and a 15lb recoil spring w/ steel guide rod. Ammo used tonight was Norma 124FMJ.

https://www.instagram.com/p/CpeF6MhMWZ-/?igshid=YmMyMTA2M2Y=

[Lowspeed_highdrag]

Shot another match tonight. Did some spring tuning. Installed a reduced power striker spring and a 15lb recoil spring w/ steel guide rod. Ammo used tonight was Norma 124FMJ.

https://www.instagram.com/p/CpeF6MhMWZ-/?igshid=YmMyMTA2M2Y=

Man, that shoots FLAT.

I recently had a G19 ported by Monsoon with their "Helport" I believe. Very soft shooter. Put 200 rounds through it yesterday, had no issues at all and was quite pleasant.

https://www.instagram.com/reel/Cpf_FBOJe0m/?utm_source=ig_web_copy_link

[Lon]

Man, that shoots FLAT.

I recently had a G19 ported by Monsoon with their "Helport" I believe. Very soft shooter. Put 200 rounds through it yesterday, had no issues at all and was quite pleasant.

https://www.instagram.com/reel/Cpf_FBOJe0m/?utm_source=ig_web_copy_link

Yep. I’m pretty happy with it. I’m gonna try to get out Saturday morning and do some side by side comparison b/t the Lucky 7s, the Afterburner and the PMM Ultra JTTC. Depends on the weather.

The Helport looks pretty effective.

[Lon]

Yep. I’m pretty happy with it. I’m gonna try to get out Saturday morning and do some side by side comparison b/t the Lucky 7s, the Afterburner and the PMM Ultra JTTC. Depends on the weather.

The Helport looks pretty effective.

If you’re following this thread and missed my side by side video thread, look here:https://pistol-forum.com/showthread.php?56565-Side-by-side-comparison-videos-of-various-non-ported-ported-comped-Glock-19s

[Savage Hands]

Wow that Lucky 7 is impressive...

[Biggy]

I am currently getting the Monsoon Tactical *Chunk Port* done to my Sig P365XL (3.7" inch barrel) / Macro grip frame pistol.

https://www.youtube.com/shorts/JzQrRUWL1qQ

https://www.youtube.com/watch?v=C7P_hozDPfg&pp=ygUrbW9uc29vbiB0YWN0aWNhbCBjaHVuayBwb3J0IGZ1bGw gYXV0byBnbG9jaw%3D%3D

[Savage Hands]

I am currently getting the Monsoon Tactical *Chunk Port* done to my Sig P365XL (3.7" inch barrel) / Macro grip frame pistol.

https://www.youtube.com/shorts/JzQrRUWL1qQ

https://www.youtube.com/watch?v=C7P_hozDPfg&pp=ygUrbW9uc29vbiB0YWN0aWNhbCBjaHVuayBwb3J0IGZ1bGw gYXV0byBnbG9jaw%3D%3D


Let us know your results! I think I'll send a G48 for a Chunk or Hel Port, whichever they recommend.

[MVS]

So I don't know anything about this dude other than, well nothing, but this is an interesting video.


https://youtu.be/zcW2vwKd_UM?si=heVjylVpSOH3paaE

[EVP]

Kinda skipped around to get the gist of the vid, but that is what I have heard and experienced(buddies gun) is that accuracy suffers especially with the trendy chunk ports.

For gaming I am meh, for a carry gun it’s not worth it IMO. I know it’s a fad and cool and stuff but people are better off just running their gun and spending the money on ammo. Who would of thought……..

[Lon]

Got a notification that my 47MOS top end was shipped. Should have it back tomorrow.

[Lon]

For gaming I am meh, for a carry gun it’s not worth it IMO. I know it’s a fad and cool and stuff but people are better off just running their gun and spending the money on ammo. Who would have thought……..

Quite a few very competent shooters disagree with you.

[EVP]

Cool….but that goes counter to what I have heard, could you elaborate which ones?



Edit- Sorry I just realized you said competent shooters, I quickly read and was thinking you said “competition shooters”.

[JCN]

Kinda skipped around to get the gist of the vid, but that is what I have heard and experienced(buddies gun) is that accuracy suffers especially with the trendy chunk ports.

For gaming I am meh, for a carry gun it’s not worth it IMO. I know it’s a fad and cool and stuff but people are better off just running their gun and spending the money on ammo. Who would of thought……..


Quite a few very competent shooters disagree with you.


Cool….but that goes counter to what I have heard, could you elaborate which ones?

Edit- Sorry I just realized you said competent shooters, I quickly read and was thinking you said “competition shooters”.

I agree with both of you.

1. Chunk ports can hurt accuracy (this can be partially mitigated by internal work like opening up the inside of the barrel post chunk port into an expansion chamber).

2. Barrel porting doesn't have to hurt accuracy much. I get the sense that it may be better to pick ammunition below speed of sound... I was still grouping ~2" at 25 yards with subsonic ammo)...

3. The cost fallacy isn't really a solid argument as most people would be better off dry firing and not spending on money on ammo and range fees at all. Let's not go too far down that rabbit hole.

4. But... agree that it probably doesn't matter on a real carry gun that lives in a holster, doesn't get used for self defense at all and likely won't be needed to make 0.15s splits at 10 yards in real life....

5. But... but... porting has come alive again with IDPA compensator and port rules. Due to size limitations of "the box," compensators can be problematic on full slide length guns. So you're left with a shorter slide plus compensator or porting what you have.

I think in the not so distant future, you're going to see a LOT of compensated / ported IDPA guns. It makes a large difference and I'm definitely working that equipment as well because of how large of a difference it makes in IDPA gaming.


https://youtu.be/skPLuUGytJE?si=aFDnnUdOOAjdIfEj

This is also my LARPing carry gun.

108943

P229 in 357 Sig with Bar-Sto barrel triple ported.

Makes a big difference in shootability.

[Lon]

Looks good. Had the slide cerakoted stealth black.

108988
108989

Also works in an AIM Surplus barrel. I like how that looks. Not sure what I’m gonna do - run it in the 47 slide or this 17 slide. Decisions, decisions.

108990

[Lon]

Going to give the AIM Surplus slide a try with this. Gonna sight it in tomorrow and shoot a match on Sunday.

109004
109005
109006
109007

[mmc45414]

1. Chunk ports can hurt accuracy (this can be partially mitigated by internal work like opening up the inside of the barrel post chunk port into an expansion chamber).

This is also my LARPing carry gun.

108943

I have also wondered about machining some kind of expansion chamber into an extended barrel. The bull barrel in my Ruger SR1911 got me wondering about that, was thinking it might be cool to get a longer bull barrel (probably in 38 Super...) and do some experimenting.

But my first experiment is going to be trying a threaded barrel and a comp, just to get some hands-on experience. Partially just because it is something that always was expensive and custom, and is now something I can screw together in my basement.

Also good to know about Monsoon, always glad to know sources that are in an easy driving distance for me.

[JCN]

Going to give the AIM Surplus slide a try with this. Gonna sight it in tomorrow and shoot a match on Sunday.



I wonder if there’s a theoretical benefit to the narrower slide cut of the stock slide in keeping the jet channel narrower for effect on muzzle flip.

Rather than a wide slide cut that allows the plume to bloom earlier?

Probably not enough to matter but would be interested if you notice anything shooting them back to back.

[Lon]

I wonder if there’s a theoretical benefit to the narrower slide cut of the stock slide in keeping the jet channel narrower for effect on muzzle flip.

Rather than a wide slide cut that allows the plume to bloom earlier?

Probably not enough to matter but would be interested if you notice anything shooting them back to back.

I’ll find out. When I’ve got some more time I’m gonna get an optic mounted on the 47 slide and go out and shoot them both. I’ll video w a scale in the background like I’ve done before. The AIM slide is a lot lighter so I’m curious to see if that plays a difference as well.

[awp_101]

This is also my LARPing carry gun.

108943

P229 in 357 Sig with Bar-Sto barrel triple ported.

Makes a big difference in shootability.
9mm with a flash-bang attached? 😁

[Lon]

Was at the range yesterday and decided to do an impromptu comparison b/t my G26L and the G47 - both top ends have the Lucky 7’s and in the video I’m using the exact same 15lb recoil spring and guide rod in both.


https://youtu.be/JzgWshA8Sdk?si=o_USfF0KIK_i-mHP

[awp_101]

Was at the range yesterday and decided to do an impromptu comparison b/t my G26L and the G47 - both top ends have the Lucky 7’s and in the video I’m using the exact same 15lb recoil spring and guide rod in both.


https://youtu.be/JzgWshA8Sdk?si=o_USfF0KIK_i-mHP

They look pretty similar to me. Did they feel pretty similar?

[Lon]

They look pretty similar to me. Did they feel pretty similar?

Yes, they’re pretty similar. The biggest difference I noticed was the dot movement in the window of the SRO v. the 507. I don’t have another SRO, but I think I’m gonna put the Gideon Omega on the 47 since it’s got a bigger window that the 507.

[TOTS]

I’m really considering the hel-port from Monsoon on a 365 Macro. I’m a little concerned about the lucky-sevens on such a short barrel (3.7 non-compd). Shouldn’t be too much of a problem with a dot, but it’s my understanding a high-vis front sight would get fouled pretty quickly; the port in front of the front sight would keep it clean. I’ve heard they started back-boring to prevent the loss of accuracy on the hel-ports but it’s a carry gun, so still a priority.

I understand the PMCC is probably the favorite around here but I don’t want to make the package longer than it already is and don’t want the hassle of getting a new slide. Cost is a factor as well.

Any thoughts on the hel-ports vs lucky-sevens? Lon ?

[Lon]

I’m really considering the hel-port from Monsoon on a 365 Macro. I’m a little concerned about the lucky-sevens on such a short barrel (3.7 non-compd). Shouldn’t be too much of a problem with a dot, but it’s my understanding a high-vis front sight would get fouled pretty quickly; the port in front of the front sight would keep it clean. I’ve heard they started back-boring to prevent the loss of accuracy on the hel-ports but it’s a carry gun, so still a priority.

I understand the PMCC is probably the favorite around here but I don’t want to make the package longer than it already is and don’t want the hassle of getting a new slide. Cost is a factor as well.

Any thoughts on the hel-ports vs lucky-sevens? Lon ?

Couple thoughts -
1. The front sight will definitely get smokey. But I primarily use black sights. The one slide I have that has a white dot on the front got completely smoked when I had the L7 barrel in. I’m in the “anything other than black sights on a dot gun is a waste of money” camp.
2. I know they do a Lucky 3 port setup on some shorter slides. If you check their IG page you’ll see a Shield they did that way.
3. I only have experience with their L7 ports. I emailed them to discuss the Glock options and they told me the L7 was the softest shooting option. I’d suggest emailing them and asking what they think is the best option.

I was gonna use my bday $$ and take advantage of their Black Friday sale, but decided to spend the $$ on my 1301 instead. They seem to do a lot of the Chunk ports on their staccato’s, so that may end up being what they recommend. Good luck and let us know what you decide.

[Biggy]

I have been very impressed with Monsoon Tactical's Genghis Comp (a refined version of their chunk port) on my SCD equipped Gen 5 G19. It is very flat shooting with minimal bullet velocity loss while still maintaining decent accuracy at longer distances, if you do your part . Their Lucky 7 barrel/slide porting is nice and with the gradual release of the gases it may be a hair smoother and softer shooting recoil wise than their chunk port, but the end of the barrel chunk port is more flat shooting, and it also tends to throw back less powder residue on the glass of your dot sight than their inline barrel porting does. Currently I have my G19's slide at Agency Arms getting their very robust and low (AOS) optic cut, which lets you securely mount about all of the top tier dot sights with just a plate change. I haven't decided on the optic yet, but it will probably be a closed emitter type like the ACRO, Holosun EPS or 509T. I am really looking forward to when this pistol is complete and will post some Pics of it when it is.


https://youtu.be/PhWE8grLSqM?si=ONn_ulI-SNliJc9u

https://www.youtube.com/watch?v=C7P_hozDPfg&pp=ygUcbW9uc29vbiB0YWN0aWNhbHMgY2h1bmsgcG9ydA%3D%3 D

https://agencyarms.com/agency-optic-system-aos-cut

https://www.youtube.com/watch?v=HZm5EsoOqXY&pp=ygUZYWdlbmN5IGFybXMgQU9TIG9wdGljIGN1dA%3D%3D

[Lon]

Doing low light training this week. Took some video of the Lucky 7’s in no light.

Norma 124 FMJ:
111970

Federal 124 HST +P:
111971

Stills don’t tell the whole story. Watch the video:
https://www.instagram.com/p/C0NwA86sgVB/?igshid=MzRlODBiNWFlZA==