Product DescriptionThe Phase 5 Weapon Systems Enhanced Pistol Buffer Spring is a high performance, extra-power buffer spring designed for AR pistol platforms and standard carbine applications. Built from heat treated, corrosion-resistant steel wire, it is engineered to improve cycling for smoother, more consistent operation while delivering added durability for demanding use. Compatible with AR-15/M16 rifles or pistols chambered in .223/5.56mm.Product Highlights Enhanced, extra-power buffer spring to support reliable cycling in AR pistols and carbines Heat treated, corrosion-resistant steel wire construction for long service life Designed to improve cycle operation for more consistent performance Compatible with AR-15/M16 platforms chambered in .223/5.56mm Carbine Enhanced spring for AR pistol platform and standard carbine applicationsSpecs Brand: Phase 5 Weapon Systems Model: Carbine Enhanced Series: Pistol Buffer Spring Firearm Fit: AR Pistol Platform Material: Steel Length (spring): 10.50 in Caliber Compatibility: .223 Remington / 5.56 NATO UPC: 813318020390 Manufacturer Part Number: PBSDisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.