Armaspec Fixed Stock to Carbine Spacer A1/A2 for SRS/SMB - Enhance Your Rifle's Versatility

The Armaspec Fixed Stock to Carbine Spacer is a straightforward solution for AR-15 builders and owners running an A1 or A2 style fixed stock with either a Stealth Recoil Spring (SRS) or Sound Mitigation Buffer (SMB) system. If you've upgraded to one of these specialized buffer systems but your stock doesn't quite sit where you want it, or you're mixing components from different eras of your rifle's build, this spacer fills that gap—literally. It's a no-frills adapter that lets your existing furniture work with your modern internals without hunting for oddball parts or settling for a sloppy fit.

This is the kind of part that separates a thoughtful, tight AR build from one that feels compromised. Whether you're fine-tuning a precision rifle, restoring a retro look while keeping modern performance features, or simply repurposing stock parts across multiple uppers, the Armaspec spacer handles the job. At 2.75 inches in length, it's engineered to work specifically with A1/A2 pattern stocks, so you know it'll integrate cleanly without guessing or grinding.

Armaspec's attention to buffer tube and stock compatibility reflects their broader philosophy: quality components that solve real problems instead of forcing you into expensive or complicated workarounds. If you're already invested in SRS or SMB technology, or you just value getting the mechanicals right, this spacer earns its place in your parts bin.

Key Features

• Designed for A1/A2 style fixed stocks
• Compatible with Stealth Recoil Spring (SRS) and Sound Mitigation Buffer (SMB) systems
• 2.75-inch length for proper fit and function
• Enables use of legacy stock furniture with modern buffer systems

Specifications

Frequently Asked Questions

Will this spacer work with my A1 or A2 style stock?

Yes. The Armaspec Fixed Stock to Carbine Spacer is designed specifically for A1 and A2 pattern fixed stocks and is 2.75 inches in length to match those configurations.

What buffer systems is this spacer compatible with?

It's engineered to work with Armaspec's Stealth Recoil Spring (SRS) and Sound Mitigation Buffer (SMB) systems.

Do I need this spacer if I'm upgrading to an SRS or SMB?

Only if you're pairing your new buffer system with an A1/A2 style fixed stock and need the spacer to achieve proper fit and function. Your specific setup will determine whether it's necessary.