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  1. Lewis Machine & Tool (LMT) AR-15 5.56 NATO Flattop Stripped Upper Receiver - 16"
    Lewis Machine & Tool (LMT) AR-15 5.56 NATO Flattop Stripped Upper Receiver - 16"
    $685.80
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  2. Aero Precision M5 Threaded Assembled Upper Receiver - FDE Cerakote
    Aero Precision M5 Threaded Assembled Upper Receiver - FDE Cerakote
    $209.99
    Out of stock
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  3. Sharps Bros AR-15 Billet Assembled Upper Receiver
    Sharps Bros AR-15 Billet Assembled Upper Receiver
    $194.70
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  4. Rainier Arms Exclusive R&D Precision 9mm PW9 Bufferless Upper Kit – V2
    R&D Precision 9mm PW9 Bufferless Upper Kit – V2
    $609.99
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  5. Sionics Weapon Systems (SWS) AR-15 Premium Complete 5.56 Upper Receiver - 16" (Phosphate BCG)
    Sionics Weapon Systems (SWS) AR-15 Premium Complete 5.56 Upper Receiver - 16" (Phosphate BCG)
    $789.95
    Out of stock
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  6. JL Billet ECO AR-15 Billet Upper Receiver
    JL Billet ECO AR-15 Billet Upper Receiver
    Special Price $55.92 Regular Price $104.99
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  7. SLR Rifleworks AR-15 SLR-B15 Billet Upper Receivers
    SLR Rifleworks AR-15 SLR-B15 Billet Upper Receivers
    $249.00
    Out of stock
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  8. Blackout Defense Quantum Mark 2 AR15 Stripped Upper Receiver
    Blackout Defense Quantum Mark 2 AR15 Stripped Upper Receiver
    $224.99
    Out of stock
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  9. Stern Defense AR-15 Assembled Forged Upper Receiver
    Stern Defense AR-15 Assembled Forged Upper Receiver
    $109.00
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  10. Icon Defense AR-15 Forged Stripped Upper Receiver - Black
    Icon Defense AR-15 Forged Stripped Upper Receiver - Black
    $123.99
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  11. Sionics Weapon Systems (SWS) AR-15 Premium Complete 5.56 Upper Receiver - 11.5" (Phosphate BCG)
    Sionics Weapon Systems (SWS) AR-15 Premium Complete 5.56 Upper Receiver - 11.5" (Phosphate BCG)
    $789.95
    Out of stock
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  12. R&D Precision 9mm PW9 Bufferless Upper Kit – V1
    R&D Precision 9mm PW9 Bufferless Upper Kit – V1
    $579.95
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  13. Aero Precision M4E1 AR-15 Threaded Stripped Upper Receiver - Black
    Aero Precision M4E1 AR-15 Threaded Stripped Upper Receiver - Black
    $134.99
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  14. Rainier Arms Exclusive Rainier Arms / Rellim Arms AR-15 .223 Wylde Take Down Upper Receiver Assembly - 8.5"
    Rainier Arms / Rellim Arms AR-15 .223 Wylde Take Down Upper Receiver Assembly - 8.5"
    $1,299.99
    Out of stock
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  15. Rainier Arms Exclusive Rainier Arms / Rellim Arms AR-15 5.56 NATO Take Down Upper Receiver Assembly - 16"
    Rainier Arms / Rellim Arms AR-15 5.56 NATO Take Down Upper Receiver Assembly - 16"
    $1,299.99
    Out of stock
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  16. SIG SAUER MCX Rattler 300BLK Complete Upper - 5.5"
    SIG SAUER MCX Rattler 300BLK Complete Upper - 5.5"
    Special Price $1,759.99 Regular Price $1,999.99
    Out of stock
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Barrel Length
  1. 4" 1 item
  2. 5" 2 items
  3. 5.5" 12 items
  4. 6" 1 item
  5. 7" 1 item
  6. 7.5" 6 items
  7. 7.75" 1 item
  8. 7.94" 1 item
  9. 8" 4 items
  10. 8.3" 2 items
  11. 8.5" 7 items
  12. 8.75" 1 item
  13. 9" 3 items
  14. 9.5" 1 item
  15. 9.75" 1 item
  16. 10.3" 13 items
  17. 10.5" 12 items
  18. 10.7" 1 item
  19. 11.5" 9 items
  20. 11.85" 2 items
  21. 12" 1 item
  22. 12.5" 4 items
  23. 13" 3 items
  24. 13.7" 5 items
  25. 13.9" 2 items
  26. 14.5" 15 items
  27. 16" 26 items
  28. 16.1" 1 item
  29. 18" 7 items
Barrel Profile
  1. MK12 SPR 1 item
  2. Non-fluted 3 items
Caliber
  1. .22 ARC 1 item
  2. .223/5.56 3 items
  3. .223 Wylde 7 items
  4. .308 1 item
  5. .45 ACP 3 items
  6. 300 Blackout 21 items
  7. 5.56X45 5 items
  8. 5.56 NATO 58 items
  9. 7.62x39 6 items
  10. 9mm 19 items
Category
  1. Stripped Lower Receivers 43 items
  2. Complete Lowers 3 items
  3. Stripped Upper Receivers 58 items
  4. Complete Upper Receivers 82 items
  5. Partial Upper Receivers 57 items
  6. Receiver Sets 30 items
  7. Chassis 2 items
Finish
  1. Arid 2 items
  2. Black 1 item
  3. Cerakote 4 items
  4. FDE 1 item
  5. Phosphate 1 item
  6. Anodize 19 items
  7. Quench Polish Quench (QPQ) 1 item
Gas Block Diameter
  1. .750" 32 items
Gas System Length
  1. Pistol 5 items
  2. Carbine 15 items
  3. Mid 30 items
  4. Intermediate 2 items
  5. Rifle 3 items
Height
  1. Absolute Co-Witness 1 item
Inside Diameter
  1. 1.3" 1 item
  2. 1.6" 1 item
Manufacturer
  1. A3 Tactical 3 items
  2. Aero Precision 23 items
  3. Andro Corp Industries 2 items
  4. Angstadt Arms 4 items
  5. Arms Republic 2 items
  6. Ballistic Advantage 6 items
  7. Battle Arms Development 6 items
  8. Blackout Defense 4 items
  9. Bootleg 2 items
  10. Bravo Company MFG (BCM) 20 items
  11. Centurion Arms 1 item
  12. Cross Machine Tool (CMT) 3 items
  13. Daniel Defense 9 items
  14. Dead Foot Arms LLC 2 items
  15. Faxon Firearms 3 items
  16. Fortis MFG 1 item
  17. Forward Controls Design 3 items
  18. Grey Ghost Precision 1 item
  19. Half Cocked Arms (HCA) 1 item
  20. HERA ARMS 2 items
  21. Icarus Precision 2 items
  22. Icon Defense 2 items
  23. Jacob Grey 2 items
  24. JL Billet 3 items
  25. JP Enterprises Inc 2 items
  26. Lantac 3 items
  27. Lewis Machine & Tool (LMT) 12 items
  28. Matador Arms 1 item
  29. Maxim Defense 17 items
  30. MCM Firearms 1 item
  31. NEMO Arms 1 item
  32. Next Level Armament 5 items
  33. Noveske 10 items
  34. Primary Weapon Systems 9 items
  35. Q, LLC 2 items
  36. Quarter Circle 10 7 items
  37. R&D Precision 3 items
  38. Radian Weapons 3 items
  39. Rainier Arms, LLC 31 items
  40. Rise Armament 1 item
  41. RogueOps 3 items
  42. Sharps Bros 9 items
  43. Sig Sauer 4 items
  44. Silencerco 1 item
  45. Sionics Weapon Systems 2 items
  46. SLR Rifleworks 3 items
  47. Sons of Liberty Gun Works 18 items
  48. Stern Defense 4 items
  49. Tactical Edge Arms 1 item
  50. V Seven Weapon Systems 9 items
  51. VKTR Industries 2 items
  52. VLTOR 2 items
  53. WMD Guns 1 item
Model
  1. Sig MCX 2 items
Mount
  1. M-LOK 40 items
  2. Picatinny 6 items
Option
  1. AR-9 5 items
  2. AR-10 9 items
  3. AR-15 71 items
  4. FN 509 1 item
  5. WA 2 items
  6. KS 2 items
  7. Glock 2 items
  8. Sharps Bros 1 item
  9. MCS 2 items
  10. Full Size 2 items
Platform
  1. AR-9 1 item
  2. AR-10/LR308 6 items
  3. AR-15 49 items
  4. Sig Sauer 3 items
Rail Length
  1. 5" 1 item
  2. 6.0" 2 items
  3. 6.91" 1 item
  4. 7" 6 items
  5. 7.25" 1 item
  6. 8" 3 items
  7. 8.5" 1 item
  8. 9" 1 item
  9. 9.2" 1 item
  10. 9.25" 1 item
  11. 9.5" 9 items
  12. 9.55" 4 items
  13. 9.75" 1 item
  14. 10" 2 items
  15. 10.5" 3 items
  16. 10.7" 2 items
  17. 11" 2 items
  18. 11.5" 3 items
  19. 11.7" 2 items
  20. 11.75" 1 item
  21. 12" 4 items
  22. 12.5" 4 items
  23. 12.75" 1 item
  24. 13" 4 items
  25. 13.25" 2 items
  26. 13.5" 1 item
  27. 13.7" 2 items
  28. 14" 1 item
  29. 15" 17 items
  30. 15.25" 1 item
  31. 15.3" 1 item
  32. 15.5" 1 item
  33. 16" 1 item
Size
  1. 9 Slot 2 items
Thread Pitch
  1. 1/2x28 (9mm) 3 items
  2. 1/2x28 (.22 cal) 39 items
  3. 1/2x36 1 item
  4. 5/8x24 (.30 cal) 10 items
Twist Rate
  1. 1:6 1 item
  2. 1:7 40 items
  3. 1:8 4 items
  4. 1:10 2 items
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