What buffer & spring on my build?

[snarkscarbine]

Highly recommend the Tubb flatwire springs. I’ve had their AR-15 spring in my Valkyrie (Rifle buffer) for quite a while and it is extremely smooth. Recently swapped in a buddy’s Tubb AR-10 spring on a whim and it was even smoother and increased accuracy slightly. Bought an AR10 spring of my own for that gun. Took the Ar15 spring out and put it in my 12” Grendel and it had the same effect; far smoother, better cyclic rate, and more accurate.


Also, they’re rated to 500,000 cycles, whereas many round wire springs start to die after 10-20 magazines. Watch David Tubb’s spring comparison video. Very informative.