Receiver End Plate – Durable, MIL-SPEC AR15 Receiver End Plate for Secure Castle Nut Retention | Aero Precision

Secure your buffer tube and enhance the durability of your AR15 build with a rugged, MIL-SPEC receiver end plate engineered for strength and precision fit.

The Receiver End Plate by Aero Precision is a critical component for maintaining proper buffer tube alignment and ensuring your AR15’s lower receiver assembly remains secure and reliable. Machined from high-quality steel and built to MIL-SPEC standards, this end plate fits seamlessly with standard AR15 lower receivers and carbine buffer systems. Whether you’re building a rifle from the ground up or upgrading worn components, Aero Precision’s receiver end plate delivers trusted strength and functionality.

Key Features and Benefits

• MIL-SPEC Design

  Built to military specifications for guaranteed fit and performance with standard AR15/M4 lower receivers.

• High-Strength Steel Construction

  Provides lasting durability and resistance to wear, deformation, and corrosion.

• Essential Component for Assembly

  Ensures proper retention of the receiver extension (buffer tube) and castle nut—critical for safe, stable operation.

• Perfect for New Builds or Repairs

  Ideal for assembling new lower receivers or replacing worn or damaged end plates.

• Low-Profile and Lightweight

  Slim profile ensures compatibility with all carbine-length stocks and sling mounting setups.

• Made in the USA

  Precision-manufactured in the United States to meet the high standards of Aero Precision quality and reliability.

Specifications

• Platform: AR15 / M4

• Material: Hardened Steel

• Finish: Manganese Phosphate or Black Oxide (varies by batch)

• Weight: Approx. 0.3 oz

• Compatibility: MIL-SPEC AR15 lower receivers and carbine buffer tubes

• Installation: Works with standard castle nuts and buffer tubes

• Origin: Made in the USA

Usage Instructions

Install during the assembly of your lower receiver’s buffer tube system. Place the end plate between the lower receiver and castle nut. Properly torque and stake the castle nut to prevent loosening. Use with a MIL-SPEC wrench for best results.

Warranty

Covered under Aero Precision’s Limited Lifetime Warranty, ensuring product quality and performance. Applies to the original purchaser with proof of purchase.

Why Choose the Aero Precision Receiver End Plate

This simple yet essential part plays a vital role in your AR15’s performance and safety. With MIL-SPEC compatibility, reliable strength, and USA-made craftsmanship, the Aero Precision Receiver End Plate is the trusted choice for both novice builders and experienced gunsmiths. It’s a small part that makes a big difference in the long-term reliability of your rifle.