Armaspec Stealth Recoil Spring Kit - ARM253-AR15KIT

The Armaspec ARM253-AR15KIT refers to the Stealth Recoil Spring (SRS) Gen 4 Tuning Kit for AR-15 platforms. This is a "captured" recoil system designed to replace the traditional buffer and spring to provide a smoother, quieter shooting experience.

What is in the Kit?

Unlike purchasing a single fixed-weight SRS, the ARM253-AR15KIT is a tuning bundle that includes:

• One (1) SRS Gen 4 Main Unit: Pre-assembled in the "C" (Carbine) weight configuration.
• Two (2) Interchangeable Weights: Includes an H (Heavy) and H2 weight, allowing you to swap them out to tune your rifle's cycling.

Equivalent Weights included:

• C: 3.3 oz
• H: 3.8 oz
• H2: 4.7 oz

Key Features

• Silent Operation: Because it is a self-contained unit, it prevents the spring from rubbing against the inside of the buffer tube, eliminating the "cheese grater" or "twang" sound common in AR-15s.
• Reduced Recoil: Uses a multi-stage spring system where the second stage acts as a cushion to soften the felt recoil impulse.
• Drop-In Installation: No special tools are required for installation. It is compatible with standard carbine-length buffer tubes.
• Constant Tension: The buffer mass stays under constant tension against the bolt carrier group (BCG), which can improve reliability and reduce wear.

Compatibility & Installation Notes

• Buffer Tube: Fits carbine-length buffer tubes only (not for A2 rifle-length tubes without an adapter).
• BCG Compatibility: Most standard bolt carriers are compatible, but they must have a rear opening of at least .60" to accommodate the guide rod.
• Buffer Retainer: You can run this with or without the standard buffer retainer pin. Many users choose to remove the pin for easier maintenance, as the SRS is self-contained.
• Maintenance: Armaspec recommends checking the screws/roll pins for tightness during regular maintenance to ensure the unit stays secure.

Technical Specifications