Product Overview

When precision and reliability matter, the ATI Outdoors AR-15 Crush Washer 5 Pack delivers unmatched performance for any AR-15 build or upgrade. Engineered to fit over 1/2"-28 threads, each washer features a rugged black oxide finish that resists corrosion, reduces friction, and ensures a tight, uniform seal every time you assemble your rifle.

This pack of five crush washers is perfect for gun enthusiasts, professional armorers, and reloaders who demand consistency across multiple builds or maintenance cycles. Whether you’re assembling a new lower receiver or performing routine maintenance, these washers provide the exact fit and strength needed for a flawless connection.

Key Features & Benefits

• Precision Fit: Designed specifically for 1/2"-28 threads, ensuring a perfect match with AR-15 lower receivers, buffer tubes, and other critical components.
• Black Oxide Coating: Provides superior corrosion resistance and a low-friction surface that enhances durability and ease of installation.
• Consistent Crush Force: Engineered to deliver a uniform crushing pressure, eliminating gaps and preventing loosening under recoil.
• Five-Piece Pack: Stocked with five washers, giving you the flexibility to tackle multiple builds or keep spares on hand.
• High-Grade Material: Constructed from hardened steel, offering maximum strength while maintaining a lightweight profile.
• Easy Identification: Clearly stamped with “A.5.10.2253” for quick reference during assembly or inventory checks.

Compatibility

These crush washers are compatible with any AR-15 platform that utilizes the standard 1/2"-28 thread specification, including but not limited to:

• Lower receivers (mil-spec and commercial)
• Buffer tube assemblies
• Upper receivers with compatible thread patterns
• Aftermarket components that require a crush washer for proper torque distribution

Always verify thread size before installation to ensure optimal performance.

Installation Guide

1. Align the washer over the 1/2"-28 threaded hole on the component.
2. Insert the washer fully, ensuring the stamped side faces outward for easy visual confirmation.
3. Apply the appropriate torque using a calibrated torque wrench (recommended 10–12 ft‑lb for standard AR-15 assemblies).
4. Inspect the crush washer for uniform deformation after tightening; a correctly installed washer will show even compression around its circumference.
5. Repeat the process for any additional washers required in your build.

Following these steps guarantees a secure, lasting connection and helps prevent component loosening during firing cycles.

Technical Specifications

Why Choose ATI Outdoors?

ATI Outdoors is a trusted name among firearms enthusiasts for delivering high‑quality, precision‑engineered components that stand up to rigorous field use. Our crush washers undergo strict quality control inspections to guarantee consistency across every batch. When you select ATI Outdoors, you’re choosing reliability, performance, and a product backed by years of industry expertise.

Customer Reviews

“These washers fit perfectly and the black oxide finish looks great. I’ve used them on multiple builds and they never back out.” – Mark D.

“Excellent value for a 5‑pack. The crush force is consistent and the washers hold up after countless firings.” – Jessica L.