No sir. I'm using the Vltor A5 buffer system. I'd use it over either of those two options. But a lot of guys are using the JP SCS and like it. I'm not a fan of adding additional parts and making things overly complicated. But at least they offer different spring rates to allow you to tune the setup to your gun.
And I'm honestly still lost as to the purpose of the Geissele spring and buffer. The spring is not compatible with standard buffers. You are required to buy additional tungsten weights and reconfigure the buffer if you want to run H2, H3, etc. Aside from that, the buffer is more or less the same as a standard buffer, except it only works with the Geissele spring. So, supposedly the magic is in the spring itself and it's supposed to have a super long life. What's the big deal with that? Chrome silicon springs from Springco basically do the same thing for $20, come in a variety of strengths and work with all other standard diameter buffers, including rifle, carbine and A5.
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