TriggerSupply Silent H2 Buffer & Spring System — AR-15TriggerSupply Silent H2 Buffer & Spring System AR 15 All in one silent buffer and captured spring. Eliminates buffer spring noise, reduces felt recoil, and pairs perfectly with FRT triggers on carbine and rifle length builds. $60 less than JP Enterprises. Why the Silent H2? The standard buffer spring in your AR 15 scrapes against the inside of your buffer tube every shot that metallic grinding sound you hear when you rack the charging handle. The