Is this how you come at new 308ar.com members, telling them not to "complicate poop" and "stick to poop that works" when they never stated a problem with their build... in their introduction post? I was looking for scope advise not "why won't my rifle cycle" but to answer your question, it's a 5.7 oz weight, no idea on the spring rate.
"When you choose "fancy shiit" - you choose "complicated solutions..." Stick with shiit that works. Don't complicate shiit with complicated shiit. "
The term "solution" indicates the need to address a problem, no problem with the build choices I made. How do you know my build doesn't function properly? The rifle runs great and recoils close to a factory built 5.56 due to the parts I chose. Just because this is my first 308 build doesn't mean I didn't research it for months on end prior to choosing parts.
As far as an adjustable gas block, how do you know I don't have plans to run a can later? I never stated either way. Even if I don't run one, why send more gas to the bolt than is necessary for the rifle to function? Answer, to cycle nearly every mfg of .308 ammo. I don't have that as an issue right now and if I do later, it's just a few clicks to the left to open the block a little more.
Thanks for the warm welcome to 308ar.com.