quote:

Originally posted by 45R:

quote:

Originally posted by Phelen_Kell:
They used to say you could use their triggers in the MPX but changed and said they are coming out with a specific MPX trigger.

The problem is the hammer is hitting the disconnector which is why SIG has the bridge in place. Most disconnectors are a little too tall for the bridge to work. So some modify the bridge to use aftermarket triggers.

I just stuck a 3.5# JP hammer spring in mine. It's still a little gritty, but feels better.

I bought a SSA trigger from them because they said they would warranty it. If it breaks...they will replace it. Hopefully they'll still replace it if anything happens. The SSA was a great improvement to the MPX trigger but it wasn't all that impressive to me. Now the webpage says their triggers are to be used from ARs only. MPX trigger coming out soon.

Thankfully with the popularity of the PCCs there will be a bit more in aftermarket support.

quote:

Originally posted by 45R:

quote:

Originally posted by Phelen_Kell:
They used to say you could use their triggers in the MPX but changed and said they are coming out with a specific MPX trigger.

The problem is the hammer is hitting the disconnector which is why SIG has the bridge in place. Most disconnectors are a little too tall for the bridge to work. So some modify the bridge to use aftermarket triggers.

I just stuck a 3.5# JP hammer spring in mine. It's still a little gritty, but feels better.

I bought a SSA trigger from the because they said they would warranty it. If it breaks...they will replace it. Hopefully they'll still replace it if anything happens. The SSA was a great improvement to the MPX trigger but it wasn't all that impressive to me. Now the webpage says their triggers are to be used from ARs only. MPX trigger coming out soon.

Thankfully with the popularity of the PCCs there will be a bit more in aftermarket support.

quote:

Originally posted by ckbush:
You could try a Hiperfire trigger instead.

Already has a bridge as part of the design, and a better trigger pull to boot.

CK Bush

quote:

Originally posted by g8rbreath:
So called Sig customer service to check on my MPX K handguard I ordered Feb 2016, they said approximate ship date is July. At least my Omega 9K is about to clear! Can't believe it's taking so long for a part...

quote:

Originally posted by mpxgeek:

quote:

Originally posted by ckbush:
You could try a Hiperfire trigger instead.

Already has a bridge as part of the design, and a better trigger pull to boot.

CK Bush

That's a good idea. I've been looking into them since you posted this. I would be interested in hearing from someone who has had over 4500 rounds through it to see if they had any issues as that seams to be where the decent aftermarket triggers start failing.

Update: I purchased the hiperfire 24c after I received an email from the company stating it will work with no issues.

quote:

Originally posted by 10x Sniper:
I just saw that LuLa now has a MPX magazine loader available. Anyone feedback and what else is out there to assist loading these mags?

quote:

Originally posted by Chowser:
My gen2 (date on box is 11/18/16) does not like Freedom's 147 either. It will eat their American Steel 115 and Winchester Ranger 124+P just fine.
I have some WWB 147 somewhere and a few cases of Winchester USA 124gr FMJ enroute.

Going to look for some gen1 mags on sale.

Debating a barrel chop to 5" and rethread instead of buying a metric piston.

I have no issues with FM's 147 reman in my AR9 (4" sbr) suppressed or unsuppressed. It also runs fine in my Glock 19, Beretta 92F, Ruger 1911 and HK VP9 (suppressed and unsuppressed)

quote:

Originally posted by Smokey99:

quote:

Originally posted by mpxgeek:

quote:

Originally posted by ckbush:
You could try a Hiperfire trigger instead.

Already has a bridge as part of the design, and a better trigger pull to boot.

CK Bush

That's a good idea. I've been looking into them since you posted this. I would be interested in hearing from someone who has had over 4500 rounds through it to see if they had any issues as that seams to be where the decent aftermarket triggers start failing.

Update: I purchased the hiperfire 24c after I received an email from the company stating it will work with no issues.

I've got about 2000 with Hyperfire 24C. It's off the chain!!!

quote:

Originally posted by immawake:
I took the MPX carbine to the indoor range today. I brought the 1 supplied Gen 2 mag and 3-Gen 1 mags, all loaded with 30 rounds of Freedom Munitions 124gr new ammo. I started with the Gen 2 mag and had trouble getting a round to chamber. The round wasn't being fully pushed out of the mag. I tried a Gen 1 mag and had the same problem with not being able to chamber a round. After messing with the mags and the gun for awhile, it started working. I attributed the problem with the strong new springs in the mags. I ended up running 220 rounds through the gun using both the Gen 2 mag and the Gen 1 mags. So, bottom line: the Gen 1 mags work fine in the Gen 2 gun. And, the MPX is a lot of fun.

quote:

Originally posted by mrmn50:

quote:

Originally posted by immawake:
I took the MPX carbine to the indoor range today. I brought the 1 supplied Gen 2 mag and 3-Gen 1 mags, all loaded with 30 rounds of Freedom Munitions 124gr new ammo. I started with the Gen 2 mag and had trouble getting a round to chamber. The round wasn't being fully pushed out of the mag. I tried a Gen 1 mag and had the same problem with not being able to chamber a round. After messing with the mags and the gun for awhile, it started working. I attributed the problem with the strong new springs in the mags. I ended up running 220 rounds through the gun using both the Gen 2 mag and the Gen 1 mags. So, bottom line: the Gen 1 mags work fine in the Gen 2 gun. And, the MPX is a lot of fun.

Thank you for this. I hope I can save a lot of $$ buying gen 1 mags when I can find them.

quote:

Originally posted by Manoloiv:

quote:

Originally posted by mrmn50:

quote:

Originally posted by immawake:
I took the MPX carbine to the indoor range today. I brought the 1 supplied Gen 2 mag and 3-Gen 1 mags, all loaded with 30 rounds of Freedom Munitions 124gr new ammo. I started with the Gen 2 mag and had trouble getting a round to chamber. The round wasn't being fully pushed out of the mag. I tried a Gen 1 mag and had the same problem with not being able to chamber a round. After messing with the mags and the gun for awhile, it started working. I attributed the problem with the strong new springs in the mags. I ended up running 220 rounds through the gun using both the Gen 2 mag and the Gen 1 mags. So, bottom line: the Gen 1 mags work fine in the Gen 2 gun. And, the MPX is a lot of fun.

Thank you for this. I hope I can save a lot of $$ buying gen 1 mags when I can find them.

Greetings, i had the same problem with a gen 2 mpx inpurxhased last year with gen 2 mags. I recently purchased another gen 2 mpx with gen 2 mags and it has run fine out of the box. The springs in the mags do put a lot of tension on the rounds which in turn but tension on the bcg. Leave your mags loaded to capacity for at least a week. This should clear up the problems. I read on here that some people use a wooden dowel or kitchen spoon to cycle the empty mags. I found this does not work as i cycled my mags at least 50 times each and still experienced malfunctions. Its after leaving them loaded for over a week that my gun cycled flawlessly. I believe the gun likes to be run wet with a thinner lube. I have no experience with gen 1 mags.