You can take the stock spring and a needle nose set of pliars and put the nose in the spring coil spacing and slowly and gently expand the over all length of the spring. This also will increase the spring tension for you.

But check your bolt first.

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A5 Super Response Trigger Owner.
Autococker Tactical Trilogy Owner
X7 E Trigger Owner
Woodsball. Recon/Scout Sniper/Designated Marksman/Sabre/Tactical Specialist