SYSTEMA - 6.04mm Barrel for M4A1, XM177E2, SIG551
Systema Tight Bore Barrel
- Improves range and accuracy
- 6.04 305mm
- High Performance Barrel for M4, M4A1, Sig 551, XM 177
- Tight Bore High Perfomance Airsoft AEG Gun 6.04 mm Inner Barrel
- Perfect for tighter grouping, more accurate shooting
- Increases FPS
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- Item #: Systema AB M4A1
- Manufacturer: Systema
