KMR 4.5″ Aluminum Recoil Spring Housing
The KMR 4.5″ Aluminum Recoil Spring Housing is a premium internal component specifically engineered for the KMR L-series and W-series pistols with 4.5-inch barrels. Designed to optimize the cycling dynamics of your firearm, this housing offers a lightweight alternative to traditional steel components, allowing for faster slide transitions and reduced reciprocating mass.
Advanced Material for Competition Performance
Weight management is a critical factor in fine-tuning a competition pistol. By utilizing high-grade aircraft aluminum, this housing reduces the overall weight at the front of the slide without compromising structural integrity. This results in a faster “snap-back” during the recoil cycle, allowing competitive shooters to track their sights more effectively during rapid follow-up shots.
Technical Specifications:
- 6061-T6 Aluminum Construction: CNC-machined from high-strength aluminum alloy for an optimal strength-to-weight ratio.
- Precision 4.5″ Fitment: Tailored specifically for KMR models with 4.5-inch slide lengths, ensuring perfect alignment with the recoil spring and guide rod.
- Hardcoat Anodized Finish: Treated with a durable protective layer to reduce friction and protect against wear from the recoil spring’s constant compression.
- Smooth Bore Interior: Features a polished internal channel to eliminate spring “crunch” or binding, providing a consistently smooth slide feel.
- OEM Standards: Manufactured to KMR’s rigorous factory tolerances for 100% reliable operation.
Why Choose the Aluminum Housing?
The primary advantage of the aluminum recoil spring housing is its influence on the pistol’s balance and cycle speed. For shooters using lighter recoil springs to match specific competition ammunition, the reduced mass of the aluminum housing helps maintain a reliable cycle while softening the perceived “dip” of the muzzle as the slide returns to battery. It is an essential component for those looking to “balance” their KMR for maximum flat-shooting performance.
Key Benefits:
- Reduced Reciprocating Weight: Enables faster slide cycles and quicker target re-acquisition.
- Consistent Spring Compression: Provides a stable and frictionless environment for the recoil spring to operate.
- Enhanced Corrosion Resistance: The anodized aluminum is impervious to the moisture and cleaning solvents that can affect standard steel parts.
- Easy Installation: Designed as a direct drop-in replacement for standard 4.5″ housings, requiring no permanent modifications to the firearm.
























