PSA Dagger Recoil Spring Weight?

Anyone know what the recoil spring weight is on a stock PSA Dagger Sub?

I am not sure the official weight, but all 3 of mine felt fairly stiff when I got them. However, after a few hundred rounds they all seem to have broken in nicely.

I believe its stock g19 gen 3, so like 18lbs preload. I put a Tyrant Designs comp on mine, and had to switch to a 15lb spring to get it to cycle and feed correctly. Note: 13 and 11lb springs wont work correctly in a Dagger. They’re too short. Hope it helps.

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