Spikes Tactical SED7900 AR-15 Ejection Port Door Installation Kit

The Spikes Tactical SED7900 Ejection Port Door Installation Kit provides AR-15 builders and armorers with precision-machined components for reliable ejection port assembly. This black metal kit ensures proper case ejection and protects the upper receiver's internal components from debris infiltration.

What Makes This Different

Unlike standard ejection port doors that can bind or fail under rapid fire conditions, the SED7900 features enhanced spring tension and reinforced pivot points. The kit includes all necessary hardware with tighter manufacturing tolerances than mil-spec requirements. Each component undergoes quality control testing to ensure consistent cycling across various ammunition weights and powder charges.

Key Features

• Precision-machined black metal construction for extended service life
• Complete installation kit with all required hardware and components
• Enhanced spring system maintains proper tension through temperature extremes
• Compatible with all mil-spec AR-15 upper receivers and variants
• Reinforced pivot pin design resists wear from high-volume shooting
• Corrosion-resistant finish withstands harsh environmental conditions
• Drop-in installation requires no gunsmithing or special tools

Field testing demonstrates reliable function across temperature ranges from -20°F to 140°F without binding or failure to close. The enhanced spring maintains consistent pressure whether firing lightweight varmint rounds or heavy subsonic ammunition. Competition shooters report smooth cycling during rapid-fire strings, while tactical users appreciate the debris protection during adverse conditions.

Technical Specs

• Material: Black anodized aluminum construction
• Compatibility: All mil-spec AR-15 upper receivers
• Finish: Type III hard coat anodizing
• Installation: Drop-in replacement, no modifications required
• Package includes: Ejection port door, spring, pivot pin, installation hardware
• Weight: 0.8 oz complete assembly
• Manufacturer: Spikes Tactical, USA

The SED7900 represents proven engineering refined through extensive testing protocols. Professional armorers and serious shooters recognize the value of quality components that function reliably when performance matters most.