I am spec'ing out my first AR-15 and would like to hear recommendations for which buffer to use for a 5.56 in an M4-type collapsible stock. From my research, here are the primary options:
OEM - 3.0 oz, $11 (RRA from Brownells)
H1,H2,H3 - about 4.0, 4.5, 5.5 oz, $45 (Colt H2 from Brownells)...