Buffer made all the difference in the world - Guntec USA AR 9mm Cal CAR Buffer and Spring Set

I first built my 9mm AR using the buffer and spring that came with the Aero Precision buffer tube kit. The rifle functioned but had a jarring kick just like the Ruger PC Carbine. I sold the PC Carbine because I didn't think that 9mm should kick that much in a rifle. I installed this Guntec 9mm buffer and spring and it made all the difference in the world. No recoil. Actually a little recoil. On the scale of 1 to 10 where 1 is a 22lr and 10 is the PC Carbine, this made it like 4 or 5. This is how a PCC should kick.