Excellent upgrade - Sprinco USA Sprinco Power Buffer Spring, AR15 Carbine

I didn't buy it off OP, I actually bought it straight from Blitzkrieg's website but nonetheless wanted to give my two cents.

I bought the Blue buffer spring because my current setup (14.5" pinned/welded) was equipped with a worn-out standard mil-spec spring and I wanted to get something durable so I wouldn't have to constantly change out the buffer springs and practical to improve handling.

Needless to say, the Sprinco buffer spring met that criteria as well as improved recoil impulse for quite an affordable price. If you're thinking about getting one, go for it! Be sure to check their advised setup list to get the best match beforehand.