PWS Ratchet Lock Castle Nut & Endplate Set – Hassle-Free Installation with Built-In QD Mount
The PWS Ratchet Lock Castle Nut & Endplate Set is a streamlined, high-strength upgrade for finishing your AR-15 or AR-308 lower receiver. Eliminating the need for traditional staking, this ratcheting system delivers consistent lockup, tool-free removal, and clean sling integration through its built-in QD socket. Whether you're starting a new build or upgrading an older rifle, this kit offers an ideal balance of simplicity and reliability.
Key Features
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Material: Machined from high-quality steel for lasting durability
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Finish: Hardcoat anodized for wear and corrosion resistance
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Compatibility: Works with both mil-spec and commercial-spec buffer tubes
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QD Sling Mount: Integrated into the endplate for low-profile sling options
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Installation: Ratchet-lock system eliminates staking
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Ease of Use: Makes maintenance, adjustment, and disassembly much faster
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Made in the USA
Why We Recommend It
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Simplified Installation – No more staking or hammering; installation is clean and efficient
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Strong, Reliable Lockup – Stays secure under recoil without thread locker
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Flexible Sling Setup – QD socket supports multiple sling orientations
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Tested and Trusted – Used in multiple Ally Munitions builds with consistent performance
Pro Build Tips
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Always ensure the male (buffer tube) and female (receiver) threads are clean and dry—free from grease, oil, or debris—before installing this system
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We have not found any need for thread locker when using the PWS ratcheting system; the mechanical lock holds securely on its own
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Use a castle nut wrench to snug the nut, ensuring the ratcheting teeth engage fully for best performance
Includes
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1x Ratchet Lock Castle Nut
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1x Ratchet Lock Endplate with Integrated QD Sling Mount
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