The Armaspec Stealth™ Recoil Spring (SRS™) 9mm is a precision-engineered buffer system designed specifically for 9mm AR-style platforms. Weighing 6.4 oz, this heavy-duty buffer provides superior recoil management and silent operation in a self-contained captive spring design. The SRS 9mm eliminates traditional buffer spring noise and vibration while delivering consistent cycling and reduced felt recoil—critical for maintaining control during rapid-fire sequences. Compatible with standard mil-spec carbine buffer tubes, it drops in without modification or gunsmithing. The increased weight minimizes muzzle rise and enhances stability, making it ideal for AR-9 builds, PCC competition, 3-gun setups, and tactical applications. For optimal performance in 9mm platforms, the excess weight on the rear of the bolt carrier must be removed (secured by a spring pin). The result is a smoother, quieter, and more reliable shooting experience tailored to pistol-caliber AR platforms.
The Stealth™ captive spring design transforms the shooting experience by eliminating the rattling and twanging associated with traditional buffer springs. This self-contained system integrates the spring and buffer into a single, precision-balanced unit that operates in near silence. For 9mm platforms—where blowback operation already produces distinct recoil characteristics—the SRS 9mm smooths out the impulse, reduces carrier bounce, and enhances overall shooting comfort. Whether you're running drills or competing, the silent operation keeps you focused on the target, not distracted by mechanical noise.
The 6.4 oz weight is purpose-tuned for the demands of pistol-caliber blowback operation. Unlike direct impingement 5.56 systems, 9mm ARs rely on blowback force to cycle the action, which can produce snappier recoil and increased bolt carrier velocity. The SRS 9mm's added mass slows carrier speed, reduces felt recoil, and minimizes muzzle rise—allowing for faster follow-up shots and improved control during rapid strings of fire. This makes it an essential upgrade for competition shooters and anyone seeking to maximize performance in a pistol-caliber AR platform.
Installation is straightforward: the SRS 9mm drops directly into any mil-spec carbine buffer tube with no modifications required. However, for proper function in 9mm platforms, the excess weight on the rear of the bolt carrier (secured by a spring pin) must be removed. This simple adjustment ensures optimal carrier travel and reliable cycling. Once installed, you'll immediately notice smoother operation, quieter cycling, and improved recoil characteristics.
Whether you're running PCC matches, 3-gun stages, or tactical drills, the SRS 9mm delivers the precision and reliability serious shooters demand. Its durable construction withstands high round counts, while the silent operation and reduced recoil enhance focus and accuracy. The result is a buffer system that doesn't just perform—it elevates your entire shooting experience.
Disclaimer: Follow all safe handling and manufacturer instructions. Ensure proper bolt carrier configuration (removal of excess weight) for 9mm platforms. Verify compatibility with your buffer tube and operating system before purchase.
Model: SRS GEN4 9MM
Weight: 6.4 oz (9mm buffer)
Type: Self-contained captive spring buffer system
Compatibility: AR-15 mil-spec carbine buffer tubes
Length: 3.25" (standard carbine length)
Operation: Silent design eliminates spring noise
Recoil Management: Reduced felt recoil
System Optimization: Tuned for suppressed rifles and overgassed systems
Installation: Drop-in, no gunsmithing required
Recommended Applications: AR-9 builds, competition and 3-gun setups, overgassed carbines, tactical and defensive rifles
Important Note: For proper function in 9mm rifles or pistols, the extra weight on the rear of the bolt carrier must be removed (retained by a spring pin)
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