Strike Industries Tribus Extended Receiver End Plate with Enhanced Castle Nut for AR-15/LR-308 - Aluminum

The Strike Industries Tribus Extended Receiver End Plate with Enhanced Castle Nut is a refined upgrade for AR-15 and LR-308 platforms. Unlike the standard castle nut and end plate setup found on most modern rifles, Strike Industries engineered the Tribus as a unified solution that streamlines assembly and improves functionality. Built from aluminum, it delivers a lightweight alternative that doesn't compromise on strength or durability—important if you're running a precision build or a hard-use rifle that sees regular range time, hunting trips, or duty applications.

This accessory replaces the traditional pair of separate components with a purpose-designed piece that integrates the castle nut function into the end plate itself. That means fewer parts to manage, faster stock installation, and a cleaner look at the rear of your upper receiver. Whether you're building a new rifle, swapping stocks frequently, or simply upgrading from mil-spec hardware, the Tribus simplifies the process while maintaining the reliability your rifle demands.

Strike Industries has built a reputation among serious shooters and builders for attention to detail and practical innovation. The Tribus reflects that philosophy—not flashy, just thoughtfully engineered to work better than what came before. Compatible with both .223 Remington and .308 Winchester platforms, it fits wherever a standard castle nut and end plate belong.

Key Features

• Integrated castle nut and end plate design reduces component count and assembly complexity
• Aluminum construction keeps weight minimal without sacrificing strength
• Compatible with AR-15 and LR-308 buffer tube systems
• Streamlined profile for a clean, professional appearance

Specifications

Frequently Asked Questions

Will this end plate work on both my AR-15 and LR-308?

Yes. The Strike Industries Tribus Extended Receiver End Plate with Enhanced Castle Nut is designed to fit both AR-15 and LR-308 platforms, making it versatile across common rifle builds.

How does the Tribus differ from a standard castle nut and end plate?

The Tribus combines the castle nut and end plate into one integrated component, reducing the number of parts you need and simplifying stock installation compared to traditional separate hardware.

Is this made from steel or aluminum?

The Tribus Extended Receiver End Plate is constructed from aluminum, offering a lightweight option while maintaining the durability required for reliable rifle operation.