An AR-15 stock kit is a complete set of components needed to install a stock on an AR-15 rifle. It typically includes a stock (fixed or collapsible), buffer tube (carbine or rifle length), buffer, buffer spring, end plate, and castle nut. The kit works with AR-15 lower receivers, buffer assemblies, upper receivers, and is compatible with standard AR-15 stocks and parts. It’s ideal for custom builds, upgrades, or repairs, providing everything needed for a reliable and adjustable stock setup.
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