Luth-AR 308 Ejection Port Assembly Black

A .308 ejection port assembly protects your AR upper receiver where it matters most—at the ejection port. The Luth-AR .308 Ejection Port Assembly in black finish is a straightforward upgrade that keeps dirt, debris, and environmental contamination out of your chamber when you're not firing. It's the kind of small addition that pays dividends in field conditions, whether you're running a precision rifle at distance or a tactical build in rough terrain. Installation is uncomplicated, and the assembly includes everything you need to get it mounted.

Built for .308 uppers, this ejection port cover assembly closes a genuine gap in rifle protection. Your bolt carrier and chamber are expensive components worth keeping clean. A quality cover is cheap insurance against the grit that accumulates in a day of hunting or shooting. The black finish matches standard AR aesthetics and blends seamlessly into most builds.

Luth-AR designs parts with the working shooter in mind—folks who expect their gear to function in less-than-ideal conditions. This assembly reflects that philosophy: no frills, solid design, and reliable operation.

Key Features

• Designed for .308 upper receivers
• Black finish exterior
• Includes cover, pin, and spring for complete installation
• Keeps debris out of the ejection port and chamber
• Straightforward installation on compatible uppers

Specifications

Frequently Asked Questions

Will this ejection port assembly fit my .308 AR upper?

Yes—this assembly is designed specifically for .308 upper receivers. Confirm your upper is chambered in .308 before ordering.

What's included in the assembly?

The package contains the ejection port cover (308-UR-05), the ejection port cover pin (308-UR-03), and the ejection port cover spring. All components needed for installation are included.

How difficult is installation?

Installation is straightforward and can be completed without gunsmithing expertise. The included pin and spring mount directly to your upper receiver.

Can I remove the cover when I want to shoot?

Yes. The ejection port cover is designed to open during operation and can be removed or kept in place depending on your preference and shooting conditions.