Is it an h or an h2? neither it's a t2! - Spikes Tactical Heavy Tungsten Carbine Buffer

Tungsten powder. No shakey noise. Ask what you should put in your mid-length gas system, and most will tell you get a spikes T2 and call it a day. It's that easy. Just get it. You might buy a new fancy single buffer/spring all in one thats super quiet. But you'll need this first to figure out your needed weight. And that fancy single all in one unit isn't that much quieter than this and a flat spring.