i use a blue sprinco spring with st-t2 buffer in a 14.5 bcm middy. runs great have about 3k on it with out malfunctions. i like that i don't have to worry about changing it anytime soon. use their extractor springs too. when i didn't know any better i used a extra, extra red sprinco action spring......that ran great too. go figure.
been meaning to change change over to the more appropriate white spring. like i said, i bought my blue and red springs a few years back when i though "extra power" some how meant better.
i wonder if i am paying the price of extra power blue spring with a rougher recoil impulse? i guess i will see when i get a white one and have something to compare it to.


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I'm sure he'd love that.

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