Armaspec AR-15 Parts

Stealth Recoil Spring (SRS): The Flagship Product

The Stealth Recoil Spring is a captured hydraulic buffer and spring system that replaces the standard AR-15 buffer, buffer spring, and buffer retainer with a single sealed unit. Drop it into any mil-spec carbine buffer tube and it’s installed — no fitting, no tuning. The benefits: elimination of the “sproing” sound that standard AR-15 buffer springs produce (especially noticeable with suppressed shooting), reduced felt recoil through hydraulic dampening, and simplified maintenance (one part instead of three). Available in carbine, rifle, and A5 lengths, and in multiple weight configurations for different gas system lengths and suppressor use.

Which SRS Weight Do I Need?

Armaspec offers the SRS in multiple weights to match different AR-15 configurations. Standard (3.3 oz equivalent) for most carbine-gas 5.56 builds. Heavy (H1/H2 equivalent) for mid-length gas systems and suppressed carbine-gas builds. Extra Heavy (H3 equivalent) for suppressed mid-length and overgassed builds. The general rule: if your current buffer weight runs your gun reliably, choose the SRS in the same weight class.

Armaspec Triggers and Safeties

Beyond the SRS, Armaspec offers single-stage and two-stage AR-15 triggers, ambidextrous safeties, enhanced bolt catches, and extended magazine releases. These are competitively priced drop-in upgrades that compete with Radian, Geissele, and Timney at lower price points.

Suppressor Use: Why the SRS Matters

Suppressed AR-15 shooting amplifies every mechanical sound the rifle makes — with the loud muzzle blast removed by the suppressor, the buffer spring’s “twang” becomes the dominant noise in the shooter’s ear. The SRS eliminates that sound entirely, making a suppressed AR-15 dramatically quieter from the shooter’s perspective. It’s one of the most popular suppressor-host upgrades in the AR-15 aftermarket.

Installation

The SRS drops into any standard mil-spec carbine buffer tube with no modification — remove the old buffer and spring, drop in the SRS, and reassemble. No special tools required. It’s compatible with all standard AR-15 lower receivers and buffer tubes.

Frequently Asked Questions

What does the Stealth Recoil Spring do?
Replaces the standard AR-15 buffer and spring with a captured hydraulic unit that eliminates spring noise, reduces felt recoil, and simplifies the buffer system.

Does the SRS work with a suppressor?
Yes — it’s one of the most popular suppressor-host upgrades because it eliminates buffer spring noise that becomes prominent in suppressed shooting.

What weight SRS do I need?
Match the SRS weight to your current buffer weight. Standard for carbine-gas 5.56, Heavy for mid-length or suppressed carbine, Extra Heavy for suppressed mid-length.

Is the SRS compatible with my AR-15?
Yes — it fits any standard mil-spec carbine buffer tube. Not compatible with proprietary buffer systems (A5/VLTOR requires the A5-length SRS).

See Also: AR-15 Parts • AR-15 Lower Receiver Parts • AR-15 Upper Receiver Parts • Suppressors • AR-15 Rifles