Upper Spring Cup 2-1/2in

The Upper Spring Cup 2-1/2in from HOWE is a precision-engineered bolt-on component designed for tactical rifle platforms and military-grade applications requiring reliable recoil management. Built for shooters and operators who demand consistent performance across high-round-count training sessions and duty cycles, this spring cup serves as the foundation for proper bolt carrier group function and buffer system optimization. Whether you're building a duty rifle, upgrading an existing platform, or maintaining critical equipment, this component ensures predictable cycling and longevity.

Constructed from cadmium-plated steel, the Upper Spring Cup 2-1/2in features a 1-8 inch threaded interface for secure bolt-on installation and accommodates 2.5-inch springs, making it compatible with standard and mid-length buffer tube assemblies. The cadmium finish provides superior corrosion resistance and durability in harsh operational environments, preventing premature wear and maintaining dimensional integrity through extended service. The precision threading ensures zero play during installation, critical for maintaining buffer system functionality and shot-to-shot consistency in tactical or competitive scenarios.

Operators and armorers benefit most from this component when maintaining or rebuilding AR-pattern rifles, where buffer system reliability directly impacts reliability and cycling performance. Installation is straightforward for anyone with basic armorer knowledge—simply thread onto the buffer tube and secure with standard hardware. Weighing 0.7 lbs and measuring 3.7 x 3.4 x 6.6 inches, it integrates seamlessly into existing builds without adding unnecessary bulk, making it ideal for duty rifles, SBRs, and precision carbines where weight management matters.