When tuning your AR-15 for smoother shooting or suppressor use, adjusting the buffer system is key. AR buffer systems range from the lighter carbine buffer (around 3 oz) to the heavier H3 buffer (5.4 oz), with options like the H1 and H2 buffers providing intermediate weights. Choosing the right buffer weight improves ejection patterns and bolt lockup, especially when considering factors like ammo type, barrel length, and suppressor use. Each buffer weight can be tailored to specific setups, such as lighter buffers for longer, unsuppressed rifles, or heavier ones for short-barreled, suppressed firearms, helping ensure reliable performance. Palmetto State Armory has a great selection of AR-15 buffer tube parts to help your AR perform at its best.