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Improve the performance of your AR-15 with our AR Carbine Buffer Spring. Designed specifically for .223/5.56mm caliber firearms, this high-quality spring will help ensure smooth and reliable operation. Upgrade your rifle today with this durable buffer spring.
Fits AR-15/M16 carbines chambered in .223/5.56mm with M4-type receiver extension for collapsible buttstock. Made from 631 stainless steel.