PWS Ratchet Lock Castle Nut & Endplate Set - RLCN-KIT

Elevate your AR-15 build with the PWS Ratchet Lock Castle Nut & Endplate Set, the ultimate upgrade for securing your buffer tube without the hassle of staking. Designed by Primary Weapons Systems, this innovative kit delivers unmatched reliability and ease of use, ensuring your firearm performs flawlessly in any scenario. Whether you’re a seasoned builder or refining your tactical setup, this set combines precision engineering with practical benefits to keep you focused on the shot, not the setup.

Key Features

• Ratchet-Lock Mechanism: Prevents the castle nut from loosening under recoil or vibration, providing a rock-solid hold without traditional staking.
• Integrated QD Sling Mount: Built into the endplate for quick and secure attachment of QD slings, enhancing mobility and readiness.
• Universal Compatibility: Works seamlessly with both MIL-SPEC and commercial buffer tubes, ideal for AR-15 and AR-308 platforms.
• Durable 4140 Steel Construction: Ensures long-lasting strength and resistance to wear, even in demanding conditions.
• Easy Installation: Simply torque to 40 ft/lbs with a standard castle nut wrench—no special tools or permanent modifications required.

Specifications

• Weight: 3.2 oz
• Length: 0.75 inches
• Material: 4140 Steel (black oxide finish)
• MPN: 4BTRLPB1
• Compatibility: AR-15/AR-308 buffer tubes (MIL-SPEC and commercial)

Why Choose This Product

Standard castle nuts often require staking to stay secure, which can complicate disassembly and maintenance—especially if you’re frequently reconfiguring your rifle. The PWS Ratchet Lock Set solves this pain point by locking in place with a innovative ratchet design that allows forward rotation for installation but resists backward movement. This means faster builds, easier adjustments, and peace of mind during extended range sessions or tactical operations.

Users appreciate how this set eliminates common issues like nut walk-off, making it a favorite for custom AR builds. Its robust build withstands thousands of rounds without failure, while the QD mount adds versatility for sling users. Invest in quality that outperforms generic options and simplifies your firearm maintenance routine.

Ready to secure your build with superior engineering? Add the PWS Ratchet Lock Castle Nut & Endplate Set to your cart today and experience the difference in reliability and convenience.

Frequently Asked Questions

Does this set require staking?

No, the ratchet-lock design eliminates the need for staking, allowing for easy installation and removal while maintaining a secure fit.

Is it compatible with my buffer tube?

Yes, it’s designed for both MIL-SPEC and commercial buffer tubes on AR-15 and AR-308 rifles, ensuring broad applicability.

How do I install the PWS Ratchet Lock Set?

Slide the endplate onto the buffer tube, thread the castle nut, and torque to 40 ft/lbs using a castle nut wrench. The ratchet engages automatically for a permanent hold.