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quote:
Originally posted by Engineer:
I asked Liberty about 9mm performance and their response was:

"It is about 5 dB louder on 9mm. We are running in the lower 130s with it in 9mm on the host weapons we have here. The Mystic X runs in the upper 120's with the same weapon platforms."

I did not ask about backpressure but I assume it will be lower with the larger aperture and the monocore looks a lot less restrictive that the Mystic cores.

Thanks Eng. This is going to be tough to gauge until someone does a head-to-head, but it sounds like it will be a compromise between optimal muzzle sound and blowback.
 
Posts: 55 | Location: Gunshine State - Connecticut No More | Registered: February 11, 2012Reply With QuoteReport This Post
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quote:
Originally posted by ctsheepdog:
quote:
Originally posted by Engineer:
I asked Liberty about 9mm performance and their response was:

"It is about 5 dB louder on 9mm. We are running in the lower 130s with it in 9mm on the host weapons we have here. The Mystic X runs in the upper 120's with the same weapon platforms."

I did not ask about backpressure but I assume it will be lower with the larger aperture and the monocore looks a lot less restrictive that the Mystic cores.

Thanks Eng. This is going to be tough to gauge until someone does a head-to-head, but it sounds like it will be a compromise between optimal muzzle sound and blowback.


Yeah, it seems like something that won't be proved out on paper or on the pages of an internet forum.

FWIW, I was shooting my MPX and EVO with an Octane 9 using a Griffin 3-lug mount and a Mystic using Liberty's 3-lug mount. My 9mm sub loads are 147 gr Montana Gold CMJ bullets with 3.3 gr of Titegroup.

My personal experiences were that the Mystic was slightly less gassy but the Octane was not uncomfortable to shoot and didn't bother me at all.

I did order a Thompson SG-2 so I might be able to make a comparison next summer.
 
Posts: 107 | Location: NE Ohio | Registered: June 29, 2000Reply With QuoteReport This Post
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I did order a Thompson SG-2 so I might be able to make a comparison next summer.[/QUOTE]
-------------------

Looks like the SG-2 has a diameter of 1.625”. I wonder if that will fit under the hand guards of the MPX for those cutting the barrel down?
 
Posts: 97 | Registered: November 17, 2015Reply With QuoteReport This Post
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I'm probably going to get a Bowers VERS 9S to go with my MPX-K. The VERS 9S is 1.75" diameter, 8.6" long. The VERS (and previously the CAC) series of suppressors were designed to be used on pistol caliber submachine gun type guns, MACs, UZIs, etc. I have a CAC45 for my Masterpiece 9mm and 45ACP MAC clones and it works great with them.
 
Posts: 83 | Location: SW Washington State | Registered: September 02, 2009Reply With QuoteReport This Post
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https://m.facebook.com/comment...&actorid=57629597602

Sig posted info on the Gen1 and Gen2
 
Posts: 191 | Registered: April 06, 2014Reply With QuoteReport This Post
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quote:
Originally posted by Elec540:
https://m.facebook.com/comment...&actorid=57629597602

Sig posted info on the Gen1 and Gen2

"The page you requested cannot be displayed right now. It may be temporarily unavailable, the link you clicked on may be broken or expired, or you may not have permission to view this page."
 
Posts: 54 | Registered: May 27, 2006Reply With QuoteReport This Post
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quote:
Originally posted by Elec540:
https://m.facebook.com/comment...&actorid=57629597602

Sig posted info on the Gen1 and Gen2


The link doesn't work for me.

Does anyone know who the company is that is cutting the 8" barrel and handguard down to make a 4" barrel MPX-K?



ΜΟΛΩΝ ΛΑΒΕ



God bless the Motor Life Boat and the men & women that run them!
 
Posts: 3829 | Location: Pikeville, NC | Registered: August 06, 2009Reply With QuoteReport This Post
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You have to log into facebook
 
Posts: 191 | Registered: April 06, 2014Reply With QuoteReport This Post
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I am not waiting any longer for the ambiguous responses that are coming from SIG. Hell, it took their product development team 3 years to get to this state of confusion. Life is to short to wait for SIG's "ever changing" timetable of accessories for this platform.

So, I just sent mine out for this service. They cut and thread the barrel at 4.5in with 1/2x28 or 1/2x36 threading to replicate the MPX-K. And they cut down the picatinny handguard to replicate the K size, and refinish in CERAKOTE. I don't think he is cutting the keymod version just yet. He will ream out an A2 birdcage to 9mm for $10, to work on this barrel.

Total package price $250. You only need to send in the barrel and handguard. Zach advertises a short turn around time.

www.zrtacticalsolutions.com

ZRTS
Noblesville, IN

This message has been edited. Last edited by: armedjetflyer,


Robert Ioan
 
Posts: 68 | Location: USA | Registered: October 23, 2011Reply With QuoteReport This Post
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posted Hide Post
quote:
Originally posted by ctsheepdog:
quote:
Originally posted by Engineer:
I asked Liberty about 9mm performance and their response was:

"It is about 5 dB louder on 9mm. We are running in the lower 130s with it in 9mm on the host weapons we have here. The Mystic X runs in the upper 120's with the same weapon platforms."

I did not ask about backpressure but I assume it will be lower with the larger aperture and the monocore looks a lot less restrictive that the Mystic cores.

Thanks Eng. This is going to be tough to gauge until someone does a head-to-head, but it sounds like it will be a compromise between optimal muzzle sound and blowback.


It will most definitely have less back pressure, over bored and the baffle stack has a lot of space between baffles. I bet the FRP is insane. That's one area the Mystic X always suffered, but the same can be said for the Osprey.

Over the weekend i finally fired my Octane 45 on the MPX, since I'm in a neighborhood i only did a few shots because my curiosity was getting the best of me, definitely need to spend more time testing.

Anyways, i compared Oct 9 vs Oct 45 both using SilencerCo 3 lug on TrosUSA adapter with EMCON 147gr suppressor ammo. Oct 45 had no perceived additional blowback and was very pleasant. Oct 9 had a noticeably quieter muzzle report but with added blowback.

Within the next 2-4 weeks my SG-2 should be approved and I'll do a more in depth comparison using more ammo types, throw in the Oct 45K and Griffin Revo 9K and maybe add the 9mm end caps to the Oct 45 if time allows. Right now I'm thinking a .45 with 9 end cap could be just the ticket but i have high hopes for the SG-2.
 
Posts: 63 | Location: St. Louis | Registered: June 11, 2015Reply With QuoteReport This Post
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Originally posted by Elec540:
You have to log into facebook

Nope, still doesn't work. Mind posting a screenshot or just a copy and paste of the text? Where exactly was it posted? Not seeing it on Sig's FB page...
 
Posts: 54 | Registered: May 27, 2006Reply With QuoteReport This Post
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quote:
Originally posted by armedjetflyer:
I am not waiting any longer for the ambiguous responses that are coming from SIG. Hell, it took their product development team 3 years to get to this state of confusion. Life is to short to wait for SIG's "ever changing" timetable of accessories for this platform.

So, I just sent mine out for this service. They cut and thread the barrel at 4.5in with 13.5x1 LH threading to replicate the MPX-K. And they cut down the picatinny handguard to replicate the K size, and refinish in CERAKOTE. I don't think he is cutting the keymod version just yet.

Total package price $250. You only need to send in the barrel and handguard. Zach advertises a short turn around time.

www.zrtacticalsolutions.com

ZRTS
Noblesville, IN


I just contacted them about this service, and the response I received was that they do not re-thread to 13.5x1 LH, only to 1/2X28 and 1/2X36



 
Posts: 3141 | Registered: October 28, 2010Reply With QuoteReport This Post
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I paste the screen shot tonight
 
Posts: 191 | Registered: April 06, 2014Reply With QuoteReport This Post
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Sorry, only 1/2x28 or 1/2x36 threading. Zach will ream out a standard A2 birdcage to 9mm for $10, to fit on this barrel.

I will post pictures when it comes back, along with the SIG telescoping stock(if it ever arrives).


Robert Ioan
 
Posts: 68 | Location: USA | Registered: October 23, 2011Reply With QuoteReport This Post
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News Flash! New SilencerCo silencer, specs seem almost too good to be true, can't wait to get my hands on one! That is a similar dB rating less than their a full size models about twice is length.

SilencerCo Omega 9K Specs:

Length: 4.7”
Weight: 7.2 oz
Diameter: 1.475”
Finish: Black Oxide
Sound Rating: 124.9 dB with 147gr Ammunition

This message has been edited. Last edited by: CRASH_PRO,
 
Posts: 63 | Location: St. Louis | Registered: June 11, 2015Reply With QuoteReport This Post
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Sig Sauer In reference to Magazines:

Although there have been some demonstrated levels of functionality when using magazines and uppers of different generations, we recommend using like generation components for optimal reliability.

*Will I still be able to purchase Gen1 9mm Magazines?
Yes, it is Sig Sauer’s intention to provide support to MPX G1 customers for all components of the firearm. Magazines in other calibers will only be available as G2 magazines.

In reference to barrels/caliber X-change:

All customers will be able to take full advantage of the MPX Caliber-X-Change Kits. If you are an MPX G1 owner, Sig Sauer will offer you the opportunity to purchase a complete MPX G2 Upper Receiver in the caliber of your choice, other than 9mm, at a reduced cost that will be the equivalent retail cost of the corresponding MPX Caliber X-Change Kit. This is limited to one purchase per MPX serial number.

The Barrels from Gen1 and Gen2 MPX are different enough to not permit compatibility. However, with the purchase of your first “Caliber-X-Change kit you will receive a full Gen2 upper. If you wish to purchase other/future caliber kits they will fit the Gen2 upper only (as specified by product description). The Gen1 will remain 9mm. MPX Gen1 Cal-X Kits are being created in 9mm only. This allows the customer to purchase G1 barrel assemblies in 4.5-inch, 6.5-inch and 8-inch variations. 16-inch barrels will be available for G2 upper receivers only.

If you have any additional questions I will do my very best to answer. If I am unable to assist you directly or you require additional information regarding the SIG MPX, or any Sig Sauer products, please do not hesitate to contact Customer Service at 603-610-3000, Option 1, M - F 8:30am – 6:00pm EST
 
Posts: 191 | Registered: April 06, 2014Reply With QuoteReport This Post
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posted Hide Post
quote:
Originally posted by CRASH_PRO:
News Flash! New SilencerCo silencer, specs seem almost too good to be true, can't wait to get my hands on one! That is a similar dB rating as a full size about twice is length.

SilencerCo Omega 9K Specs:

Length: 4.7”
Weight: 7.2 oz
Diameter: 1.475”
Finish: Black Oxide
Sound Rating: 124.9 dB with 147gr Ammunition


Yeah, they blantently copied Sig's new tubeless welded baffle design for their new suppressor. Kinda sucks that this is what it's coming down too, that a company releases a new product and 3-4 months later another company rips it off and claims it as their own "new cutting edge technology"...
 
Posts: 56 | Registered: June 08, 2015Reply With QuoteReport This Post
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I the dB rating for the MP5 only? As of right now you can only get it with the MP5 package.
 
Posts: 191 | Registered: April 06, 2014Reply With QuoteReport This Post
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quote:
Originally posted by Elec540:
I the dB rating for the MP5 only? As of right now you can only get it with the MP5 package.


Yeah, the super amazingly over priced clone MP5. That combo package is a freaking joke.
 
Posts: 56 | Registered: June 08, 2015Reply With QuoteReport This Post
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Collector's pricing, matching serial numbers. They sold there AK combo and AR combo packages.
 
Posts: 191 | Registered: April 06, 2014Reply With QuoteReport This Post
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