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Luth-AR
Overview
The Luth-AR Ejection Port Cover Assembly, model UR-05A, is a robust steel dust cover designed to protect the ejection port from debris and contaminants when the action is closed. This component ensures reliable operation by keeping the internal mechanisms clean, which is especially important for builds utilizing a carbine gas system and chambered in 5.56 NATO. You'll often find this dust cover in rifles focused on functionality and durability.
Based on build data
Radian Raptor Ar-15 Charging Handle - Radian Grey
Charging Handle
CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B
Cmmg Ar-15 Forward Assist Kit
Expo Arms Ar-15 Ambidextrous Safety Selector
Ar-15 Forged M4 Upper Receiver 5.56mm - Ar-15 Forged M4 Stripped Upper Receiver
Upper Receiver
Aero Precision Ar-15 A2 Birdcage Flash Hider
Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Radian Raptor Ar-15 Charging Handle - Radian Grey | Charging Handle | 3 |
| CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B | 3 | |
| Cmmg Ar-15 Forward Assist Kit | 3 | |
| Expo Arms Ar-15 Ambidextrous Safety Selector | 2 | |
| Ar-15 Forged M4 Upper Receiver 5.56mm - Ar-15 Forged M4 Stripped Upper Receiver | Upper Receiver | 2 |
| Aero Precision Ar-15 A2 Birdcage Flash Hider | 2 |
| Platform | Percentage |
|---|---|
| AR-15 | 80% |
| AR-9 | 20% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 80% |
| 9mm | 20% |
| Gas System | Percentage |
|---|---|
| Carbine | 60% |
| Mid-Length | 20% |
| Pistol | 20% |
Builds in the community that include the Luth-AR Ejection Port Cover Assembly - UR-05A
| Build | Parts | Total |
|---|---|---|
 | 16 | $575.91 |
 | 27 | $2940.95 |
 | 18 | $752.57 |
 | 28 | $1056.64 |
 | 27 | $2159.30 |
 | 14 | $724.03 |
 | 14 | $818.63 |
 | 21 | $585.29 |
1 global rating
For a budget build this Luth AR dust cover assembly does the job. Comes complete with the rod, c clip, and spring already on. Hinge pin is a tight fit which is good, no rattle. Black phosphate matches a milspec upper just fine. Cant ask for more at this price.
