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End Plate Kit - Quick Detach Steel and Castle Nut

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Upgrade your sling capabilities with this high-strength quick detach end plate and castle nut set. Engineered for rapid swivel access, it provides the versatility today’s tactical and competitive shooters require. Proudly Made in the USA.
Mil-Spec
24.99 24.99

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30-day money-back guarantee
Shipping: 2-3 Business Days
Enhanced end plate for rapid swivel mounting. Proudly Made in the USA.

Quick Detach Steel End Plate and Castle Nut Kit

This end plate kit pairs a steel quick detach end plate with a castle nut, giving builders a sling attachment point at the rear of the receiver extension. The quick detach design lets you mount and remove a compatible QD swivel quickly, which suits tactical setups, range work, and competitive shooting where sling configurations change often. The castle nut secures the assembly during stock or buffer tube installation. This kit is made in the USA.

As with any AR build, confirm the components match your platform and receiver extension before installation. Verify your QD swivel is compatible with the quick detach socket, and use a castle nut wrench with proper staking practices during assembly.

Need a different configuration? Compare the mil-spec end plate kit or the ambidextrous dual loop end plate kit, and stock spares with our steel castle nut five pack.

Specifications

TypeEnd plate kit (quick detach steel end plate and castle nut)
End Plate MaterialSteel
FinishPhosphate coated
FeatureBuilt-in quick detach (QD) sling swivel mount
CompatibilityFits all standard AR-10 and AR-15 receivers
Sling ConfigurationSupports single or two point sling setups
Weight0.3 ounces
OriginMade in the USA
Support

Frequently Asked Questions

What's included in this end plate kit?

The kit includes a steel quick detach end plate and a castle nut. The end plate has a built-in QD sling swivel mount that sits at the rear of the receiver extension, and the castle nut secures the assembly during stock or buffer tube installation.

Will this fit my AR build?

The kit is listed as fitting all standard AR-10 and AR-15 receivers. As with any AR build, confirm the components match your platform and receiver extension before installation, and verify your QD swivel is compatible with the quick detach socket.

What material and finish is the end plate?

The end plate is steel with a phosphate coating. It weighs approximately 0.3 ounces and is made in the USA. The kit is listed as mil-spec on the product page.

How do I install this kit?

The castle nut secures the assembly during stock or buffer tube installation. Use a castle nut wrench and follow proper staking practices during assembly. Confirm all components match your platform and receiver extension before you begin.

Are there other end plate configurations available?

Yes. You can compare the mil-spec end plate kit or the ambidextrous dual loop end plate kit, and stock spares with our steel castle nut five pack.