SergioSF Posted March 15, 2017 Share Posted March 15, 2017 Just picked up a Hiperfire 24C for my MPX. Will the stronger springs beat up my gun? Will the lighter springs be enough to fire all primers? Any advice on which color springs to use, please? Thanks! Link to comment
Flatland Shooter Posted March 15, 2017 Share Posted March 15, 2017 Easy enough to change out the springs. Start out with the heavy springs (gives the lightest trigger pull) and see how you fare. I have several 24C triggers and have used the heavy springs on all of them. Its a great trigger. Bill Link to comment
Posvar Posted March 15, 2017 Share Posted March 15, 2017 Use the silver (strongest and non colored) ones! You will love it. Matt Link to comment
brytec Posted March 15, 2017 Share Posted March 15, 2017 Gray spring Sent from my iPhone using Tapatalk Link to comment
SergioSF Posted March 15, 2017 Author Share Posted March 15, 2017 OK, except for the hammer pin, that was a pretty painless installation. Thanks to all your advice, I started out with the gray springs. Thanks again! Link to comment
SergioSF Posted March 16, 2017 Author Share Posted March 16, 2017 Here's a pic, cos I'm so stoked Link to comment
Flatland Shooter Posted March 16, 2017 Share Posted March 16, 2017 Very nice. Let us know how it shoots. Bill Link to comment
Neomet Posted March 16, 2017 Share Posted March 16, 2017 The heavier springs arguably actually reduce wear by protecting the disconnector from the hammer hitting it with excessive force which is a concern due to the high bolt speed of the MPX. I now have 3,350 rounds on my 24C with no issues. Link to comment
GregJ Posted March 16, 2017 Share Posted March 16, 2017 7 hours ago, SergioSF said: Here's a pic, cos I'm so stoked Love mine. Same stock too, very comfortable. MUCH better/solid than the original stock. Link to comment
TRUBL Posted March 16, 2017 Share Posted March 16, 2017 Something to ponder.......Just like the 1911/2011; the main spring is being used as 'part' of the recoil system (debatable as to whether it is a good thing or bad thing).......guy's are putting in heavier main springs (yeah for ignition too) so that you keep the pistol locked just a little longer and then going with a somewhat lighter recoil spring. The same can be said on blow back AR's too. Just a little trick to think about. Link to comment
GregJ Posted March 16, 2017 Share Posted March 16, 2017 15 minutes ago, TRUBL said: Something to ponder.......Just like the 1911/2011; the main spring is being used as 'part' of the recoil system (debatable as to whether it is a good thing or bad thing).......guy's are putting in heavier main springs (yeah for ignition too) so that you keep the pistol locked just a little longer and then going with a somewhat lighter recoil spring. The same can be said on blow back AR's too. Just a little trick to think about. Problem is the availability of recoil springs for the MPX, of any kind, much less OEM. I have not found any aftermarket. It's been a while since I checked, but Sig doesnt seem to want to sell replacement recoil springs. Hopefully this has/will change. Link to comment
TRUBL Posted March 16, 2017 Share Posted March 16, 2017 Just now, GregJ said: Problem is the availability of recoil springs for the MPX, of any kind, much less OEM. I have not found any aftermarket. It's been a while since I checked, but Sig doesnt seem to want to sell replacement recoil springs. Hopefully this has/will change. SIG MPX......you are on your own I was only talking about blow back actions Link to comment
GregJ Posted March 16, 2017 Share Posted March 16, 2017 3 minutes ago, TRUBL said: SIG MPX......you are on your own I was only talking about blow back actions LOL True dat. Link to comment
SergioSF Posted March 17, 2017 Author Share Posted March 17, 2017 Thanks again for all the advice. Great to hear about the longevity too. Thanks! I took it to a brief range session today. Trigger felt awesome as expected. However, even after breaking it in with 500-600 factory rounds, the gun still doublefeeds/stovepipes with my 147gr. It's a little better with the 124gr, but nowhere near reliably enough to run at a match. Looks like I'm going to have to get the gas port opened up. Dang it. Link to comment
TISCHLJ Posted March 17, 2017 Share Posted March 17, 2017 (edited) Let the mags sit loaded full for a few days and try again. Remember, the mpx needs,some gas to operate properly. If you are using handloads adjust powder/type as applicable. Heavy bullet and fast powder for a pistol app may not work so well for the mpx.... Edited March 17, 2017 by TISCHLJ Spell Link to comment
corny Posted March 18, 2017 Share Posted March 18, 2017 Gas, Gas, Gas...The MPX needs it. I picked up a case of 115 grain Magtech 9mm. They are about 1158 FPS. MPX loves that load. Now I am duplicating that load on my Dillon. Link to comment
Ming the Merciless Posted March 18, 2017 Share Posted March 18, 2017 (edited) 3 hours ago, corny said: Gas, Gas, Gas...The MPX needs it. I picked up a case of 115 grain Magtech 9mm. They are about 1158 FPS. MPX loves that load. Now I am duplicating that load on my Dillon. Since the MPX is a gas piston gun, you need to think of it more like an Open division pistol rather than a Production 9. My steel challenge load is a 95 grain Montana Gold over either 4.8 grains of N330 or 5.6 grains of WAP at a little over 1000 fps. It ejects the empties at least 10 feet at about 1 o'clock. I'm using it to clean out a bunch of leftover powders Using more modern powders like CFE Pistol 5.1 grains with a 115 Montana Gold JHP at 1.125 OAL runs about 1175 fps. It feels very soft and ejects about 3-4 feet further than the 95 grain bullets. The N330 and WAP loads listed above using the 115 JHP also run about 135 PF out of my MPX carbine. I'm also using the hiperfire 24C with the silver springs. Edited March 18, 2017 by Ming the Merciless Edited to add trigger info Link to comment
corny Posted March 18, 2017 Share Posted March 18, 2017 16 hours ago, Ming the Merciless said: Since the MPX is a gas piston gun, you need to think of it more like an Open division pistol rather than a Production 9. My steel challenge load is a 95 grain Montana Gold over either 4.8 grains of N330 or 5.6 grains of WAP at a little over 1000 fps. It ejects the empties at least 10 feet at about 1 o'clock. I'm using it to clean out a bunch of leftover powders Using more modern powders like CFE Pistol 5.1 grains with a 115 Montana Gold JHP at 1.125 OAL runs about 1175 fps. It feels very soft and ejects about 3-4 feet further than the 95 grain bullets. The N330 and WAP loads listed above using the 115 JHP also run about 135 PF out of my MPX carbine. I'm also using the hiperfire 24C with the silver springs. What he said. Link to comment
chopinlover Posted April 4, 2017 Share Posted April 4, 2017 Anyone using hiperfire ECL here? Is the spring same as 24C? Thanks! Link to comment
IntenseImage Posted April 7, 2017 Share Posted April 7, 2017 Anyone using hiperfire ECL here? Is the spring same as 24C? Thanks!Springs are the same across all HF triggers Link to comment
toddm Posted January 13, 2018 Share Posted January 13, 2018 Bit of a necro-thread, but for giggles I just tried to put a Hiperfire 24 3G from another build into my MPX and it was only semi-functional. Mine is a Gen 2 from Mid 16' and the issue is that the area milled out in the lower for the trigger is too narrow for the Hiperfire. So the double barrel metal parts JUST fit without rubbing. The problem is the springs, the heaviest and largest diameter silver springs rub on both sides of the lower quite a bit, enough so that if you are holding the hammer back, there's basically no pressure and you can feel it grinding when recocking. The yellow springs were better, but still rubbed, the hammer seemed to "take off" fine, but you could feel them rubbing when recocking. The blue springs were the only ones that did not rub, but they also give the lightest hammer force, so that seemed like a bad idea for reliability. Just in general I also didn't like how there was almost no tolerance between the sides of the lower and the double barrel metal parts, especially since it seems like they have a little give room to move left/right. Other guys seems to be running them without issue in MPX's, so perhaps mine is just milled super narrow. Link to comment
Rolex Posted January 14, 2018 Share Posted January 14, 2018 I have used all three sets of springs in my MPX- nothing rubbing at all- maybe just a inside diameter tolerance difference? 24 C setup- Link to comment
stick Posted January 14, 2018 Share Posted January 14, 2018 On 3/15/2017 at 2:01 PM, Flatland Shooter said: Easy enough to change out the springs. Start out with the heavy springs (gives the lightest trigger pull) and see how you fare. I have several 24C triggers and have used the heavy springs on all of them. Its a great trigger. Bill I second this. Link to comment
Aircooled6racer Posted January 14, 2018 Share Posted January 14, 2018 8 hours ago, toddm said: Bit of a necro-thread, but for giggles I just tried to put a Hiperfire 24 3G from another build into my MPX and it was only semi-functional. Mine is a Gen 2 from Mid 16' and the issue is that the area milled out in the lower for the trigger is too narrow for the Hiperfire. So the double barrel metal parts JUST fit without rubbing. The problem is the springs, the heaviest and largest diameter silver springs rub on both sides of the lower quite a bit, enough so that if you are holding the hammer back, there's basically no pressure and you can feel it grinding when recocking. The yellow springs were better, but still rubbed, the hammer seemed to "take off" fine, but you could feel them rubbing when recocking. The blue springs were the only ones that did not rub, but they also give the lightest hammer force, so that seemed like a bad idea for reliability. Just in general I also didn't like how there was almost no tolerance between the sides of the lower and the double barrel metal parts, especially since it seems like they have a little give room to move left/right. Other guys seems to be running them without issue in MPX's, so perhaps mine is just milled super narrow. Hello: Did you install the spring guides in the correct position? I can put a piece of paper on either side, so mine has clearance. I wonder if they changed the spec? Is your trigger pull consistent or does it change? Thanks, Eric Link to comment
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