Mike21STI Posted March 1, 2011 Share Posted March 1, 2011 I just picked up a M&P9 Pro and was wondering what people are using for a recoil spring? I plan on using factory 115 grain bullets. I will be using this in IDPA SSP. Link to comment Share on other sites More sharing options...
jkatz44 Posted March 1, 2011 Share Posted March 1, 2011 I was using an after market one but switched back to the original. I can't tell a difference and I can shoot it in SSP with the factory spring. Link to comment Share on other sites More sharing options...
RH45 Posted March 2, 2011 Share Posted March 2, 2011 Stick with the stock spring, especially with factory ammo. Link to comment Share on other sites More sharing options...
fred5876r Posted March 2, 2011 Share Posted March 2, 2011 Stick with the stock spring, especially with factory ammo. +1 for that. The factory captured spring works well with a wide range of ammo, and makes for a faster/easier takedown & reassembly. For light target loads only, I use a 13# ISMI on a stainless guide rod from Speed Shooter Specialties. Link to comment Share on other sites More sharing options...
waktasz Posted March 2, 2011 Share Posted March 2, 2011 I use a 13# ISMI now. It's not really necessary, but I like it. Link to comment Share on other sites More sharing options...
zero-down Posted March 2, 2011 Share Posted March 2, 2011 +1 as well. Keep the factory spring with stock ammo. Link to comment Share on other sites More sharing options...
Mike21STI Posted March 2, 2011 Author Share Posted March 2, 2011 thanks all, will do. I'm used to the 1911 platform so naturally I want to start changing stuff even when it is working properly. I should probably listen to the rule "if it ain't broke, don't fix it". Link to comment Share on other sites More sharing options...
RH45 Posted March 3, 2011 Share Posted March 3, 2011 I tried a 13# spring in my Pro, and when I shook the gun, it would come out of battery. When I saw that, I put the stock spring back in. Link to comment Share on other sites More sharing options...
sdm74 Posted March 4, 2011 Share Posted March 4, 2011 How is stock spring with reloads? Around 130pf Link to comment Share on other sites More sharing options...
fastarget Posted March 4, 2011 Share Posted March 4, 2011 How is stock spring with reloads? Around 130pf I load for my wife's pro, no problems with the stock spring. Link to comment Share on other sites More sharing options...
T_Linville Posted March 4, 2011 Share Posted March 4, 2011 I tried a 13# spring in my Pro, and when I shook the gun, it would come out of battery. When I saw that, I put the stock spring back in. I read this post got up and shook my 9L with a 13 lb spring and it came out of battery, so now it has a 15 lb in it. If you held the gun straight up and down the gun would stay out of battery. Thanks for the heads up Link to comment Share on other sites More sharing options...
fastarget Posted March 4, 2011 Share Posted March 4, 2011 I tried a 13# spring in my Pro, and when I shook the gun, it would come out of battery. When I saw that, I put the stock spring back in. I read this post got up and shook my 9L with a 13 lb spring and it came out of battery, so now it has a 15 lb in it. If you held the gun straight up and down the gun would stay out of battery. Thanks for the heads up forgot to write above, but timing Michele (splits) she was faster with the wolf 15 than the 13lb glock spring. So we have gone back to a 15lb, not only for reliability but also for feel. Link to comment Share on other sites More sharing options...
sdm74 Posted March 4, 2011 Share Posted March 4, 2011 How many pounds is stock spring? Link to comment Share on other sites More sharing options...
fastarget Posted March 4, 2011 Share Posted March 4, 2011 15-16, closer to 16 Link to comment Share on other sites More sharing options...
want2race Posted March 4, 2011 Share Posted March 4, 2011 I can tell a huge difference in recoil between stock spring and an 11. I run an 11 in a Pro, matched to an Apex striker spring (-4 coils). Have to run both lighter springs. It's so flat with an 11. Have to keep it clean though. Link to comment Share on other sites More sharing options...
RH45 Posted March 4, 2011 Share Posted March 4, 2011 I tried a 13# spring in my Pro, and when I shook the gun, it would come out of battery. When I saw that, I put the stock spring back in. I read this post got up and shook my 9L with a 13 lb spring and it came out of battery, so now it has a 15 lb in it. If you held the gun straight up and down the gun would stay out of battery. Thanks for the heads up No problem! I certainly didn't want a kaboom, and don't want to see anybody else have one either! BTW, when I tried the 13# spring, I also tried a reduced power, striker spring, and it helped a little, but, I thought it was still too easy for it to come out of battery. I've run all the way down to 120pf loads with the "stock" spring, and the brass just dribbles out, but, it runs! Link to comment Share on other sites More sharing options...
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