Jump to content
Brian Enos's Forums... Maku mozo!

Recommended Posts

I understand everyone is different, and there will always be anomalies among different platforms, but I've never NOT seen an MPX run well. I've been shooting an MPX Gen2 for going on 3 years, and it's been flawless. I run 135 PF reloads with CMJ type bullets, and mixed range brass. No issues as long as you keep it clean, which isn't really any harder than a standard AR to clean. And replace the mag springs once or twice a year.

 

Last year at the JP AREA 5 match I was squadded with Todd Jarrett and we were both running MPXs.  Lots of other shooters had at least 1 or 2 jams at some point during the match, but not our MPXs. Flawless.

 

Long story short, Todd won the whole match & I came in 3rd right behind Max Leograndis. 

 

Share this post


Link to post
12 hours ago, colt22man said:

I have one of each. All function nearly flawlessly. All have different recoil impulses. The Sig MPX gen 2 has the softest recoil of the 3.

The MPX is also the most time consuming to clean. I remove the barrel & clean the gas block body and piston every 500-700 rounds.

I have broken firing pins in each. I have spare firing pins and replace them every 5000 rounds.

You will enjoy shooting your PCC immensely what ever your choice.

Your welcome to join us at the JP Enterprises Midwest PCC Championship to be held @ Silver Creek Conservation Club Sellersburg, Indiana Memorial Day weekend 2019.

Since you have one of each, other than firing pins, how would you compare reliability?

Share this post


Link to post
12 hours ago, Chris Keen said:

I understand everyone is different, and there will always be anomalies among different platforms, but I've never NOT seen an MPX run well. I've been shooting an MPX Gen2 for going on 3 years, and it's been flawless. I run 135 PF reloads with CMJ type bullets, and mixed range brass. No issues as long as you keep it clean, which isn't really any harder than a standard AR to clean. And replace the mag springs once or twice a year.

 

Last year at the JP AREA 5 match I was squadded with Todd Jarrett and we were both running MPXs.  Lots of other shooters had at least 1 or 2 jams at some point during the match, but not our MPXs. Flawless.

 

Long story short, Todd won the whole match & I came in 3rd right behind Max Leograndis. 

 

My Gen 2 MPX has been extremely reliable. I think the secret is cleaning and cleaning often. I just preventatively put new rings on the tappet and gas plug,  changed the firing pin and extractor and recoil springs. I'm at about 10k

 

Chris what does your cleaning and gas system maintenance schedule look like? 

Share this post


Link to post
Posted (edited)

Looks allot like yours, except I only shoot PCC one or two matches a year, so I haven't replaced my rings or my firing pin yet. I had a firing pin break last year and Sig replaced it at no cost. 

 

I do clean it after every practice or local/major match, and I always clean the gas valve & tappet.  So yeah I think keeping it clean is a big part of making it run reliably. 

Edited by Chris Keen

Share this post


Link to post
On 5/6/2019 at 10:08 PM, ABQautoxer said:

You will get fans of each to respond. I'll try to be as neutral as possible with the two I have experience with. My two JPs just run and can outshoot me. We had a PCC bowling pin match and everyone lost at least one round due to a malfunction of some kind each except for two, you guessed it, our two GMR-15s. The MPX shoots softer, I'm not convinced the dot moves any less than my short stroked JP but it certainly feel just very easy to shoot. I liked it and was the first PCC I was going to buy until I started to read and then was told how unreliable some have been. Our local GM had so many issues he gave up and got a JP. So while they aren't the cheapest, you can get a discount code from a JP team shooter (some on here or I can put you in touch with one) that is not an insignificant discount. I have no regrets spending the money and would recommend both the rifle and the excellent customer support I got when I wanted to buy accessories, a second rifle, and short stroke one. I will be ordering their fancy new lightweight barrel which likely won't make me any more competitive but I might enjoy it even more.

 

I've never shot the CMMG, I love the design though. Several people here have experience with them and I think several like Memphis have modified them (or their action).

Do you happen to have a discount code for the JP as mentioned. getting close to having the 2G saved and a discount would make it happen that much sooner.

Thanks for your time

 

Share this post


Link to post
Posted (edited)

Got to shoot all three the JP GMR, MPX, and CMMG RDB this weekend.

 

Its not even close.

 

I was EXTREMELY disappointed in the JP. It's snappy because it's blowback, but clearly more recoil. It's a 1994 Rock River 9mm, literally identical makeup. I had faster splits with delayed blowback. But hey.... Keep buying the JP! Makes my chances better if I'm shooting against you ;)

 

I'm impressed with JP's marketing, getting lines of people to spend about double the value on blowback AR.

 

Don't take my word for it at all. COMPARE before you buy.

Edited by Bifurcate

Share this post


Link to post
On ‎5‎/‎22‎/‎2019 at 9:41 AM, Tampa-XD45 said:

Since you have one of each, other than firing pins, how would you compare reliability?

I've been helping with (2) level 2 USPSA major match's at our club in the last 4 weeks. I've been buried. Sorry for the late response. I would rate reliability equal on all 3.

My only other failure was a extractor roll pin in my CMMG fell out during a match. I had removed it from the bolt for cleaning the extractor. It went in back in all to easy. Should have been paying closer attention. More of a self induced problem than a design problem. I love shooting all three. I would recommend all.      

Share this post


Link to post
21 minutes ago, colt22man said:

I've been helping with (2) level 2 USPSA major match's at our club in the last 4 weeks. I've been buried. Sorry for the late response. I would rate reliability equal on all 3.

My only other failure was a extractor roll pin in my CMMG fell out during a match. I had removed it from the bolt for cleaning the extractor. It went in back in all to easy. Should have been paying closer attention. More of a self induced problem than a design problem. I love shooting all three. I would recommend all.      

 

You think it was a bad roll pin? What would you have done differently noticing it went back in too easily?

Share this post


Link to post

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...