Stern Defense AR-15 SD 4 MOD4 Complete Upper Receiver 9mm Luger 4" M-LOK
MidwayUSA · Complete Uppers
$443.48
In stock
- Current
- $443.48
- Lowest seen
- $443.48
- Highest seen
- $443.48
Tracked since May 29, 2026 · price unchanged so far.