Armaspec A1/A2 Fixed Stock Spacer for Stealth Recoil Spring/Sound Mitigation Buffer

The Armaspec A1/A2 Fixed Stock Spacer (part no. ARM154-RFL) fills the gap left in the buffer tube when you run a fixed A1- or A2-length stock alongside Armaspec’s Stealth Recoil Spring (SRS) or Sound Mitigation Buffer (SMB) system. Armaspec sizes it specifically to those recoil components, so the buffer and spring seat correctly instead of leaving excess travel or a loose fit inside the tube. It’s a small, purpose-built part for anyone running Armaspec’s recoil-reduction hardware on a fixed-stock AR-platform build rather than an adjustable carbine stock.

Key Specifications

• Purpose-built for use with Armaspec’s Stealth Recoil Spring (SRS).
• Also sized for Armaspec’s Sound Mitigation Buffer (SMB).
• Fills the gap for a fixed A1/A2-length stock setup.
• Measures 1.00 inch in both height and width, sized to the buffer tube bore.
• Measures 2.75 inches long, matched to the A1/A2 spacing gap.
• Classified as an AR-15 accessory component.
• Made in the USA.

Frequently Asked Questions

What is this spacer for? It fills the buffer tube gap so Armaspec’s Stealth Recoil Spring or Sound Mitigation Buffer seats correctly under a fixed A1/A2-length stock.

Will this work with an adjustable carbine stock? It’s sized specifically for a fixed A1/A2-length stock setup, not an adjustable carbine buffer tube.

Buy the Armaspec A1/A2 Fixed Stock Spacer

Running Armaspec’s recoil hardware on a fixed-stock build only works right when the buffer tube gap is filled correctly, and this spacer is sized to do exactly that. Order it from our Lubbock, Texas gun shop and it ships fast to your door, along with more AR buffer system parts.