Features:

• Weighs 4.6 oz
• Contains two tungsten weights and one steel weight
• Standard carbine length buffer
• Aluminum exterior
• Fits AR-15 and M16 carbine buffer tubes
• Use with standard AR-15/M16 carbine buffer springs
• H3 is 5.4 oz

Benefits:

• Increased weight allows for more reliable function in rifles with shorter gas systems
• Heavier weight reduces bolt bounce in full auto fire
• Increased weight also softens recoil
• 4.6 oz weight also allows for a longer dwell time slowing down the cycling of the rifle
• H3 is 5.4 oz