5.56x45 Multi 1:7 Smooth Government Assembled Upper Receivers
- Caliber/Gauge: 5.56x45
- Firearm Fit: Multi
- Barrel Twist: 1:7
- Barrel Fluting: None
- Barrel Profile: Government
- Category: 5.56x45 Multi 1:7 Smooth Government Assembled Upper Receivers Clear All Filters
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