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  1. Rainier Arms RUC DI 5.56 NATO Partial Upper Receiver
    Rainier Arms RUC DI 5.56 NATO Partial Upper Receiver
    Out of stock
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  2. Rainier Arms RUC Pro MK2 5.56 NATO Partial Upper Receiver
    Rainier Arms RUC Pro MK2 5.56 NATO Partial Upper Receiver
    $600.00 - $650.00
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  3. Rainier Arms RUC PRO MK1 5.56 NATO Partial Upper Receiver - 10.5"
    Rainier Arms RUC PRO MK1 5.56 NATO Partial Upper Receiver - 10.5"
    $550.00
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  4. Rainier Arms RUC PRO MK1 5.56 NATO Partial Upper Receiver - 12.5"
    Rainier Arms RUC PRO MK1 5.56 NATO Partial Upper Receiver - 12.5"
    Out of stock
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  5. Rainier Arms RUC PRO MK1 5.56 NATO Partial Upper Receiver
    Rainier Arms RUC PRO MK1 5.56 NATO Partial Upper Receiver
    $550.00 - $625.00
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  6. Rainier Arms RUC 5.56 NATO DI Complete Upper - 16"
    Rainier Arms RUC 5.56 NATO DI Complete Upper - 16"
    Special Price $664.00 Regular Price $830.00
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  7. Daniel Defense MK18 RIII Complete Upper Receiver - 10.3" Black
    Daniel Defense MK18 RIII Complete Upper Receiver - 10.3" Black
    $1,412.00
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  8. Noveske AR-15 N4 5.56 NATO SPR Upper - 18"
    Noveske AR-15 N4 5.56 NATO SPR Upper - 18"
    $1,543.75
    Out of stock
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  9. Sharps Bros AR-15/M4 .223 Wylde Complete Upper Receiver - 16"
    Sharps Bros AR-15/M4 .223 Wylde Complete Upper Receiver - 16"
    $799.95
    Out of stock
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  10. Noveske N4 Micro-Switchblock 5.56 NATO Complete Upper Reciever - 10.5"
    Noveske N4 Micro-Switchblock 5.56 NATO Complete Upper Reciever - 10.5"
    $1,496.25
    Out of stock
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  11. Rainier Arms RUC PRO MK1 5.56 NATO Partial Upper Receiver - 14.5" FDE
    Rainier Arms RUC PRO MK1 5.56 NATO Partial Upper Receiver - 14.5" FDE
    $600.00
    Out of stock
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  12. Noveske N4 Infidel CHF 5.56 NATO Complete Upper Receiver Group - 13.7"
    Noveske N4 Infidel CHF 5.56 NATO Complete Upper Receiver Group - 13.7"
    $1,567.50
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  13. Andro Corp Industries AR-15 5.56 NATO Partial Upper Receiver Group - 10.3"
    Andro Corp Industries AR-15 5.56 NATO Partial Upper Receiver Group - 10.3"
    Special Price $285.92 Regular Price $384.75
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  14. Sons of Liberty Gun Works M4 Patrol SL 5.56 AR-15 Upper - 16"
    Sons of Liberty Gun Works M4 Patrol SL 5.56 AR-15 Upper - 16"
    $617.50
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  15. Sons of Liberty Gun Works M4-EXO3 5.56 AR-15 Upper - 10.5"
    Sons of Liberty Gun Works M4-EXO3 5.56 AR-15 Upper - 10.5"
    Special Price $649.92 Regular Price $712.50
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  16. Bravo Company MFG (BCM) MK2 AR-15 5.56 NATO Complete Upper Receiver Group - 18"
    Bravo Company MFG (BCM) MK2 AR-15 5.56 NATO Complete Upper Receiver Group - 18"
    $855.99
    Out of stock
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