The Twang Buster from Doublestar is a small rubber or polymer insert placed inside the AR-15’s buffer spring. Recoil springs can produce an audible metallic twang or vibration as they compress and extend during cycling; the Twang Buster sits between spring coils to dampen that vibration and quiet the sound (Doublestar part no. JT140).

Key Specifications

• Installs inside the buffer spring to dampen coil-to-coil vibration.
• Reduces the audible metallic twang sound some AR-15 recoil springs produce during cycling.
• Sits between spring coils rather than replacing the spring itself.
• A simple, inexpensive add-on requiring no gunsmithing to install.
• Sold individually as a single small part.

Frequently Asked Questions

What does the Twang Buster do? It’s a small insert that sits inside the buffer spring to dampen coil-to-coil vibration and quiet the metallic twang some AR-15 springs produce.

Is this hard to install? No, it’s a simple add-on that drops inside the buffer spring with no gunsmithing required.

Buy the Twang Buster Buffer Spring Silencer

Quiet a twangy buffer spring with this simple Doublestar Twang Buster insert. It ships fast from our Lubbock, Texas gun shop, and our other gun accessories & parts selection has more accessory options.