Jp silent buffer spring system for ar-15 - JP Enterprises Silent Captured Buffer Spring System For AR-15

I have to admit, I was a little skeptical about this product when I ordered it. It is a little expensive for a buffer+spring combo, but once I got it installed in my rifle the sound different was immediate. This definitely does the job of getting your gun to cycle smoother and quieter than the 'standard' spring.

Once installed, this sound reduction led to a new discovery about my rifle I didn't realize before -- the sound that my bolt was making. I won't mention the brand, but my melonite-coated BCG had very very small machine marks around the bolt (not super smooth like a NickelBoron bolt). This didn't concern me prior to installing the silent capture spring, and definitely was not a defect or low-quality bolt.

But then I discovered that the sound the bolt made and it cycled, was (as best I can describe it) like running your fingernails back and forth across a holographic DVD cover. That zippy sound got pretty annoying after a while. I swapped the bolt out to something smoother, and now the rifle is even more quiet when it cycles.

Super smooth operation. I would highly recommend it! Also get the spring pack to go with it if you are planning on running your rifle suppressed. Helps if you want to super-fine-tune things.