Colt A4 Butt Cap Screw Steel for AR-15 M4 Colt M16 Compatibility

The Colt A4 Butt Cap Screw in Black Steel combines rugged durability with precise fitment for Colt AR-15/M4 platforms, delivering a reliable securing solution for rifle stocks and butt assemblies. Crafted from high-grade steel with a durable black finish, this part is designed to withstand demanding field and range conditions while maintaining a clean, low-profile appearance that complements the rifle's engineering. Ideal for builders and enthusiasts seeking a dependable upgrade or replacement, the Colt butt cap screw integrates seamlessly with Colt M16 configurations, ensuring smooth installation and secure retention without compromising weapon balance or handling. Its robust construction supports repeated disassembly and reassembly during maintenance, zeroing, and routine checks, helping to preserve accuracy and consistency over time. Whether you're assembling a precision rifle, restoring an AR-15 build, or refreshing a worn component, this steel screw delivers dependable torque retention and corrosion resistance. Trust Colt for rifle parts that meet stringent standards, with a finish and material that align with the performance requirements of Colt AR-15/M4 systems, delivering lasting reliability in every field, range, and training scenario.