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Sons of Liberty Gun Works M4-89 5.56 NATO AR-15 Upper - 10.5"Special Price $749.92 Regular Price $855.00
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- Gas Block Diameter .750" Remove This Item
- Caliber 5.56 NATO Remove This Item
- Gas System Length Carbine Remove This Item
- Price $740.00 - $749.99 Remove This Item
- Twist Rate 1:7 Remove This Item
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