Testing the Ultimate Sig P320 Upgrade: Springer Precision Guide Rod for Custom Spring Weights 1563

[@darrelldunlap7249]

...and that OEM Recoil Spring was bothering you how? Just messing with you!!! See? I did learn about the difference in the ends of the recoil springs from you!

[@yrsued]

The reason is to tune your pistol to your loads, if you reload, like me, I can make the pistol work with my loads. Using 1911 springs gives a whole lot of versatility.