I am doing a sleeper build and slowly building off of an Anderson manufacturing ar off of primary arms and has a carbine length gas system. I plan to suppress it but have it 50/50 since I’ll have another ar with the same Qd keymount. My question is that would and h2 buffer + springco blue be good or just get jp scs h2 for my ar be better off the fact that it might over gas. Looking for any tips and knowledge as I am new to this.

Thank you in advance

https://www.ar15.com/forums/AR-15/Build-help-/4-784569/

I just need help :/

Personally I would shoot it with a carbine buffer and standard spring and just see how it runs. Mostly I have no issues using those in suppressed/unsuppressed guns, but a couple rifles seem to perform better with different spring/buffer combos.

However, there are too many factors to guess about whether an H1/H2/new spring will be better or worse in your particular rifle yet. Buying a couple different buffers and springs to have on hand isn't super expensive, and you can test em all out to seem what works.

Without knowing your barrel length , gas port diameter, and ammo type its a guess.

An assortment of buffer weights on hand as suggested is a solid start.

I forgot until TGWLDR mentioned assortment, I bought a couple packs of tungsten weights from KAK, along with a few new buffer bumpers.

Cheap and easy way to test H1-H3 weight buffers in all your guns.

You are trying to fix something in a gun that hasn't even been shot yet?  Shoot it!  Then fix it if it needs fixing

I have a sleeper I'm building. I got the blue and h2 and it's very pleasant to shoot. The springco feels slightly harder to charge but very smooth and charging the carbine it just glides.

The H2 give the carbine tube a little more resistance before the gun unlocks so I think together they help tame an overgassed gun somewhat and help delay extraction.

I really like the springco as they feel so consistent on the two rifles I have them in one with substantially more rounds down range. Where as any spring that came with my rifles from the factory feels weak and tired. The springco still feels perky.