what spring for g34 gen 5 and Eagle Syntech 9mm 150gr

[borneoknives]

what spring for g34 gen 5 and Eagle Syntech 9mm 150gr?

 

I bought a pile of the ammo for carry optics.

 

Should I replace the spring with a gen 3 conversion set up?

What weight?

 

 

[dapribek]

Is there a reason to not keep it stock, just wondering. 

[12glocks]

We shoot a load similar to that but with a 147 grain and use 13 pound springs in our Gen 5 34's.  Jager rod, ISMI springs.

[borneoknives]

12 hours ago, dapribek said:

Is there a reason to not keep it stock, just wondering. 

 yes. try to make the best f the recoil impulse to keep the gun as flat as possible but not over sprung.

[borneoknives]

12 hours ago, 12glocks said:

We shoot a load similar to that but with a 147 grain and use 13 pound springs in our Gen 5 34's.  Jager rod, ISMI springs.

thanks!

[Aircooled6racer]

Hello: Do the guide rod conversion with a ISMI 13lb recoil spring. You could also try a Wolff 12lb recoil spring as well. 11lb is too light I think for factory ammo or even a non comped pistol. Thanks, Eric

[Robertwil18]

With the Gen 5 G34, is the Jager Steel .270 Guide rod and 14 or 15 pound spring the sweet spot for factory 124 and 147 ammo?   Think a 13 is too light without playing with the striker springs?  I'm looking to get a smooth and soft recoil impulse, but don't want to have it over/under sprung and want it to cycle reliably.  Any ideas?  

[nick779]

On 4/13/2019 at 12:23 PM, Robertwil18 said:

With the Gen 5 G34, is the Jager Steel .270 Guide rod and 14 or 15 pound spring the sweet spot for factory 124 and 147 ammo?   Think a 13 is too light without playing with the striker springs?  I'm looking to get a smooth and soft recoil impulse, but don't want to have it over/under sprung and want it to cycle reliably.  Any ideas?  

 

My experience is with the glock store tungsten gen 5 34 guide rod and ismi springs

.

It might be a hair too light. Cycles fine with factory striker spring and 124gr loads though

 

Did anyone ever try the #13 with an optic and a 147gr minor load? I know that combo doesn't work with a factory striker spring, but my 147gr gamer loads fte/ftl every other round with the 15#, but 124gr loads work 100%.

 

Next step is to try the #13 but I can't make it to the range for 2 weeks.

Edited May 5, 2019 by nick779

[assaultthesalt]

I'm running a 13# spring on a Gen 3 34 ( w/ DDP ) w/ 147's ( 133 PF ) with no issues.I do have a 4# striker spring and Zev Ext striker.