I’m a huge fan of JP Rifles’ Silent Captured Spring. Its smooth and quiet operation makes the AR-15, well, smoother and quieter. Less toy-like. But it’s expensive at about $139. Armaspec appears to have developed a solution to quiet operation and high cost with their Sound Mitigation Buffer (SMB). It costs a cool . . .
$45. No idea yet on how it functions, but we’ll get our hands on one soon and find out.