Armaspec Sound Mitigation Buffer, H3 Gen 3, 5.6 oz

The Armaspec Sound Mitigation Buffer (brand part number ARM258-H3) is an H3-weight AR-15 buffer built to quiet down the buffer spring’s rattle inside the tube. Weighing 5.6 ounces, this Gen 3 buffer is designed to keep the recoil spring from rubbing against the inner wall of the buffer tube, which smooths out cycling and cuts down on the mechanical noise many AR-15 owners notice on a bare mil-spec buffer. It’s a simple swap for shooters chasing a quieter, cleaner-feeling cycle.

Key Specifications

• Weighs 5.6 ounces, in the H3 buffer weight class.
• Built as Gen 3 of Armaspec’s Sound Mitigation Buffer line.
• Designed to keep the buffer spring from rubbing against the buffer tube wall for smoother, quieter operation.
• Features an adjustable spring weight to help fine-tune the recoil impulse.
• Classified as an AR-15 buffer compatible with standard mil-spec buffer tubes.

Frequently Asked Questions

What does the sound mitigation design actually do? It’s engineered to keep the buffer spring from rattling against the inside of the buffer tube, which reduces mechanical noise and smooths out cycling.

What buffer weight class is this? It’s an H3-weight buffer at 5.6 ounces, heavier than a standard carbine buffer for builds that need more mass to control bolt velocity.

Buy the Armaspec Sound Mitigation Buffer, H3 Gen 3, 5.6 oz

Quiet down your AR-15’s cycling with a heavier, purpose-built buffer. Order the Armaspec H3 buffer from our AR buffer system lineup, and our Lubbock, Texas team will get it ready to ship as soon as it’s available.