The Freedom Ordnance FX-9 OWNERS thread.

I put a 6oz buffer in mine with an AR spring. It reduced but did not fully end case bulging using two different uppers. Next spring I intend to do more experimenting to end the case bulging. I reload, have a significant amount of once fired brass. If there is a cure I should be able to find it. BTW the H3v buffer weighs 5.6oz.

Take Care
Bib
 
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Canuck44 said:
I put a 6oz buffer in mine with an AR spring. It reduced but did not fully end case bulging using two different uppers. Next spring I intend to do more experimenting to end the case bulging. I reload, have a significant amount of once fired brass. If there is a cure I should be able to find it. BTW the H3v buffer weighs 3oz.

Take Care
Bib
Click to expand...

I thought H3 was heavier than that?

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I stand corrected. I went with the heaviest I could find online. A word of warning if the buffer packaging has AR15 on it the buffer will be seized by the Canadian Border Services if you order from the US.

Take Care
Bob
 
Canuck44 said:
I stand corrected. I went with the heaviest I could find online. A word of warning if the buffer packaging has AR15 on it the buffer will be seized by the Canadian Border Services if you order from the US.

Take Care
Bob
Click to expand...

TNA also carries an 8.25oz buffer https://truenortharms.com/ar15_default_store_view/tna-extended-length-9mm-carbine-buffer-8-25oz.html

I've found an 11oz buffer from an exporter/importer out of arizona/pentiction bc that's not a forum sponsor i should receive it in early January.

From doing some research the total weight combined with both the buffer and bolt on a 9mm blowback should be around 22oz's.

blowback9.wordpress.com/2021/08/09/what-9mm-buffer-do-i-need/
 
Canuck44 said:
I stand corrected. I went with the heaviest I could find online. A word of warning if the buffer packaging has AR15 on it the buffer will be seized by the Canadian Border Services if you order from the US.

Take Care
Bob
Click to expand...

I guess "Nobody needs a heavy AR15 buffer" :rolleyes:

No worries, I have some on hand already but I am thinking of picking up the TNA version jacotsmith mentioned, CBSA wont be meddling in that.......
 
terBC my bolt in my FX9 weighs 11.8 oz. Based upon the article, thanks for it incidentally, I need a 11oz buffe. ; That seems heavy, but it is what it Now to find a seller in Canada.

Take Care,
Bob
 
Canuck44 said:
terBC my bolt in my FX9 weighs 11.8 oz. Based upon the article, thanks for it incidentally, I need a 11oz buffe. ; That seems heavy, but it is what it Now to find a seller in Canada.

Take Care,
Bob
Click to expand...

I wasn't able to find anything heavier than the TNA 8.25oz buffer in stock in Canada when I was looking in the fall. I haven't looked since when I was able to find it from the exporter/importer out of Arizona. I'm not worried about it getting seized or delayed by CBSA as it's being exported from the states and imported by the same licensed business. It's scheduled to arrive into Canada on December 30th so I should get it early January. I'll let you know how it runs with the 12oz buffer, i'm replacing my odin works with it that i'm running at 7.4oz
 
terBC said:
I wasn't able to find anything heavier than the TNA 8.25oz buffer in stock in Canada when I was looking in the fall. I haven't looked since when I was able to find it from the exporter/importer out of Arizona. I'm not worried about it getting seized or delayed by CBSA as it's being exported from the states and imported by the same licensed business. It's scheduled to arrive into Canada on December 30th so I should get it early January. I'll let you know how it runs with the 12oz buffer, i'm replacing my odin works with it that i'm running at 7.4oz
Click to expand...


Good to hear. I hope it gets through. Would you please PM me the name of the company that makes the heavier buffer you have ordered.

Take Care

Bob
 
OK,ordered a 11oz Stoner buffer and it will arrive mid January
From the article I read it is clear to me the gun from the factory has to light of bolt/buffer combination. If you don't reload bulge cases may not be a major concern. I experienced one out of battery ignition and a lot of bulged cases
Some of the cases were so bulged you could not resize the case given the bulged collar at the base of the case. I reload and for me bulged cases is a major concern


Take Care
Bob.
 
terBC said:
TNA also carries an 8.25oz buffer https://truenortharms.com/ar15_default_store_view/tna-extended-length-9mm-carbine-buffer-8-25oz.html

I've found an 11oz buffer from an exporter/importer out of arizona/pentiction bc that's not a forum sponsor i should receive it in early January.

From doing some research the total weight combined with both the buffer and bolt on a 9mm blowback should be around 22oz's.

blowback9.wordpress.com/2021/08/09/what-9mm-buffer-do-i-need/
Click to expand...

This is a great post - many thanks for the info.

I went one step further down the rabbit hole and found this. From what I can tell this combo is as good as it gets (soft shooting / no more bulged cases etc).

https://blowback9.wordpress.com/2022/12/06/ultimate-gentle-recoil-9mm-ar/

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Sniffer remember the article is for an AR 9MM. The FX9 has a shorter and likely lighter bolt and a shorter buttstock. The principle of getting to a combined weight of 22 - 23oz ( bolt + buffer). With the FX9 we can get to the 22 Oz combo by just buying a 11 Oz buffer then determine what type of spring we need. To heavy a spring can create issues as well as to light a spring.

Merry Christmas
Bob
 
Canuck44 said:
Sniffer remember the article is for an AR 9MM. The FX9 has a shorter and likely lighter bolt and a shorter buttstock. The principle of getting to a combined weight of 22 - 23oz ( bolt + buffer). With the FX9 we can get to the 22 Oz combo by just buying a 11 Oz buffer then determine what type of spring we need. To heavy a spring can create issues as well as to light a spring.

Merry Christmas
Bob
Click to expand...

The buttstock portion is the only part thats not clear for me. The buttstock on the list is 1.5" longer internally which would work perfectly when adding the 2 x 0.75" weights but to your point it may not be required if the bolt is shorter.

I am pretty sure that I am going to go with the HD hydraulic buffer and 2 weight combo. My only concern was that the hydraulic buffer doesn't have the dead blow effect of a regular buffer but the article touches on that and has proved it isn't an issue by using high speed cameras to watch the bolt close.

From what I understand the worst that will happen if the buffer tube is too short when using this combo is that the bolt wont lock back on the last round (which is a feature I want). If that happens I will look at longer buffers (I probably have one somewhere).

One thing I dod learn from all this is that a buffer tube which is too long is a negative as it can cause damage to the bolt catch.
 
I think the use of to strong a spring. A spring to heavy would drive the buffer into the stop with a force that could/can shear the stop off. Let's us know how it works out for you. The previous link posted here I thought pretty much explained the issues.

Take Care
Bob
 
Question about gunsmithing and the FX-9. Will a standard AR15 upper receiver block work with the FX-9 upper for swapping out hand guards, barrels, muzzle devices and etc? I don't suppose there's any type of reaction rod that would work either since the barrel has no locking lugs, except for maybe the midwest industries one that has a "fin" on the top that rides in the charging handle/gas key channel?
 
seamus said:
Question about gunsmithing and the FX-9. Will a standard AR15 upper receiver block work with the FX-9 upper for swapping out hand guards, barrels, muzzle devices and etc? I don't suppose there's any type of reaction rod that would work either since the barrel has no locking lugs, except for maybe the midwest industries one that has a "fin" on the top that rides in the charging handle/gas key channel?
Click to expand...

I used a Wheeler Delta Series AR Upper / Pic Rail Vise Block and set it onto a bench vise.
 
seamus said:
Question about gunsmithing and the FX-9. Will a standard AR15 upper receiver block work with the FX-9 upper for swapping out hand guards, barrels, muzzle devices and etc? I don't suppose there's any type of reaction rod that would work either since the barrel has no locking lugs, except for maybe the midwest industries one that has a "fin" on the top that rides in the charging handle/gas key channel?
Click to expand...


No. The AR15 uses a gas impeachment system while the FX9 is a simple blow back. The receivers are completely different as well. One is not the other.


Take Care

Bob
 
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