A good affordable 5.6oz buffer that works - Sniper AR-15 9mm Recoil Buffers

I weighed the buffer. It’s advertised as a 5.6oz buffer but actually weighs 5.53oz. Not a big deal. After putting a few hundred rounds thru my AR9 build, I noticed the black finish on the end that contacts the BCG has started to show signs of wear, probably caused by the force from the Direct Blowback function of a 9mm PCC. The black finish has started rubbing off around the edges. Also, the buffer is one solid piece and does not contain individual weights inside. Overall, it does what it’s suppose to do and it wasn’t expensive.