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  1. Maxim Defense MDX 505 PDX 7.62x39 Mil-Spec Complete Upper - 5.5" Urban Grey
    Maxim Defense MDX 505 PDX 7.62x39 Mil-Spec Complete Upper - 5.5" Urban Grey
    $1,165.50
    Out of stock
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  2. 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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  3. Bravo Company MFG (BCM) AR-15 Upper Receiver 9" 300 BLACKOUT MCMR-8
    Bravo Company MFG (BCM) AR-15 Upper Receiver 9" 300 BLACKOUT MCMR-8
    $731.45
    Out of stock
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  4. 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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  5. Lewis Machine & Tool (LMT) AR-15 MRP-L M-LOK Shovelnose Monolithic Upper Receiver - 11.5"
    Lewis Machine & Tool (LMT) AR-15 MRP-L M-LOK Shovelnose Monolithic Upper Receiver - 11.5"
    $864.00
    Out of stock
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  6. Bravo Company MFG (BCM) M4 Upper Receiver Assembly
    Bravo Company MFG (BCM) M4 Upper Receiver Assembly
    $129.00
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  7. Lewis Machine & Tool (LMT) AR-15 MRP-L M-LOK PDW Monolithic Upper Receiver - 7.25"
    Lewis Machine & Tool (LMT) AR-15 MRP-L M-LOK PDW Monolithic Upper Receiver - 7.25"
    $864.00
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  8. 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
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  9. 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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  10. Bravo Company MFG MK2 BFH 16" Mid Length Upper Receiver Group w/ MCMR-15 Handguard
    Bravo Company MFG MK2 BFH 16" Mid Length Upper Receiver Group w/ MCMR-15 Handguard
    $805.99
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  11. Bravo Company MFG (BCM) AR-15 BFH 11.5" Carbine Length Upper Receiver Group w/ BCM MCMR-10 Handguard
    Bravo Company MFG (BCM) AR-15 BFH 11.5" Carbine Length Upper Receiver Group w/ BCM MCMR-10 Handguard
    $758.95
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  12. Sons of Liberty Gun Works M4-EXO3 300 BLK AR-15 Upper - 10.5"
    Sons of Liberty Gun Works M4-EXO3 300 BLK AR-15 Upper - 10.5"
    $712.50
    Out of stock
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  13. Maxim Defense MDX 505 PDX 5.56 NATO Mil-Spec Complete Upper - 5.5" Urban Grey
    Maxim Defense MDX 505 PDX 5.56 NATO Mil-Spec Complete Upper - 5.5" Urban Grey
    $1,165.50
    Out of stock
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  14. Forward Controls Design URF V2 AR-15 Stripped Billet Upper Receiver - No Forward Assist
    Forward Controls Design URF V2 AR-15 Stripped Billet Upper Receiver - No Forward Assist
    Special Price $149.92 Regular Price $187.15
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  15. Bravo Company MFG (BCM) .300 Blackout Partial Upper Receiver w/ MCMR-5 - 7"
    Bravo Company MFG (BCM) .300 Blackout Partial Upper Receiver w/ MCMR-5 - 7"
    $719.00
    Out of stock
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  16. Sons of Liberty Gun Works M4-EXO3 5.56 AR-15 Upper - 16"
    Sons of Liberty Gun Works M4-EXO3 5.56 AR-15 Upper - 16"
    $712.50
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Barrel Length
  1. 4" 1 item
  2. 4.5" 1 item
  3. 5" 2 items
  4. 5.5" 14 items
  5. 6" 1 item
  6. 7" 1 item
  7. 7.5" 6 items
  8. 7.75" 1 item
  9. 7.94" 1 item
  10. 8" 4 items
  11. 8.3" 2 items
  12. 8.5" 7 items
  13. 8.75" 1 item
  14. 9" 3 items
  15. 9.5" 1 item
  16. 9.75" 1 item
  17. 10.3" 13 items
  18. 10.5" 12 items
  19. 10.7" 1 item
  20. 11.5" 9 items
  21. 11.85" 2 items
  22. 12" 1 item
  23. 12.5" 5 items
  24. 13" 3 items
  25. 13.5" 1 item
  26. 13.7" 5 items
  27. 13.9" 2 items
  28. 14.5" 16 items
  29. 16" 27 items
  30. 16.1" 1 item
  31. 17" 1 item
  32. 18" 8 items
  33. 20" 2 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. .308 Win 3 items
  6. .45 ACP 3 items
  7. 300 Blackout 22 items
  8. 5.56X45 5 items
  9. 5.56 NATO 63 items
  10. 5.56mm 1 item
  11. 6mm ARC 1 item
  12. 7.62x39 6 items
  13. 7.62x51 1 item
  14. 9mm 23 items
Category
  1. Receiver Parts 274 items
  2. Parts & Kits 33 items
  3. Barrels 9 items
  4. Trigger Parts 3 items
  5. Gas Systems 2 items
  6. Muzzle Devices 2 items
  7. Bolt Parts 15 items
  8. Grips 4 items
  9. Charging Handles 26 items
  10. Rifle Handguards 62 items
  11. Stocks & Braces 4 items
  12. MILSPEC Parts 2 items
Finish
  1. Arid 2 items
  2. Black 1 item
  3. Cerakote 6 items
  4. DLC 2 items
  5. FDE 2 items
  6. Nickel Boron 1 item
  7. Nitride 1 item
  8. Phosphate 2 items
  9. Anodize 25 items
  10. Quench Polish Quench (QPQ) 1 item
  11. Titanium Nitride (TiN) 1 item
Gas Block Diameter
  1. .750" 32 items
Gas System Length
  1. Blowback 2 items
  2. Pistol 6 items
  3. Carbine 15 items
  4. Mid 31 items
  5. Intermediate 3 items
  6. Rifle 4 items
Height
  1. Absolute Co-Witness 1 item
Inside Diameter
  1. 1.08" 1 item
  2. 1.15" 1 item
  3. 1.3" 6 items
  4. 1.315" 4 items
  5. 1.34" 1 item
  6. 1.39" 1 item
  7. 1.4" 1 item
  8. 1.6" 1 item
Manufacturer
  1. A3 Tactical 3 items
  2. Aero Precision 35 items
  3. ALG Defense 2 items
  4. Andro Corp Industries 2 items
  5. Angstadt Arms 5 items
  6. Arms Republic 2 items
  7. Ascalon Arms 1 item
  8. Ballistic Advantage 7 items
  9. Battle Arms Development 11 items
  10. Blackout Defense 4 items
  11. Bootleg 2 items
  12. Bravo Company MFG (BCM) 22 items
  13. Centurion Arms 8 items
  14. Cross Machine Tool (CMT) 8 items
  15. Daniel Defense 15 items
  16. Dead Foot Arms LLC 2 items
  17. Devil Dog Concepts 1 item
  18. Eartune 1 item
  19. Ergo Grips 3 items
  20. F-1 Firearms 1 item
  21. Faxon Firearms 5 items
  22. Fortis MFG 4 items
  23. Forward Controls Design 29 items
  24. Geissele 6 items
  25. Grey Ghost Precision 1 item
  26. Griffin Armament 3 items
  27. Half Cocked Arms (HCA) 1 item
  28. HB Industries 4 items
  29. HERA ARMS 2 items
  30. Icarus Precision 2 items
  31. Icon Defense 5 items
  32. Jacob Grey 2 items
  33. JL Billet 4 items
  34. JMAC Customs 7 items
  35. JP Enterprises Inc 3 items
  36. Kinetic Development Group 1 item
  37. KNS Precision 1 item
  38. Kalashnikov USA 2 items
  39. Kaw Valley Precision 1 item
  40. Lantac 11 items
  41. Lewis Machine & Tool (LMT) 18 items
  42. Matador Arms 1 item
  43. Maxim Defense 17 items
  44. MCM Firearms 1 item
  45. Midwest Industries 1 item
  46. Mission First Tactical 1 item
  47. NEMO Arms 1 item
  48. Next Level Armament 5 items
  49. Noveske 11 items
  50. Primary Weapon Systems 9 items
  51. Q, LLC 2 items
  52. Quarter Circle 10 7 items
  53. R&D Precision 3 items
  54. Radian Weapons 3 items
  55. Raidworx 1 item
  56. Rainier Arms, LLC 32 items
  57. Rise Armament 2 items
  58. ROAM Rifles 4 items
  59. RogueOps 3 items
  60. Sharps Bros 9 items
  61. Sig Sauer 4 items
  62. Silencerco 1 item
  63. Sionics Weapon Systems 2 items
  64. SLR Rifleworks 3 items
  65. Sons of Liberty Gun Works 23 items
  66. Sprinco (Tactical Springs) 2 items
  67. Stern Defense 6 items
  68. Strike Industries 7 items
  69. Tactical Edge Arms 1 item
  70. V Seven Weapon Systems 13 items
  71. VKTR Industries 2 items
  72. VLTOR 4 items
  73. WMD Guns 1 item
Model
  1. CZ Bren 2 items
  2. CZ Scorpion 3 items
  3. H&K G36 1 item
  4. Sig MCX 2 items
Mount
  1. M-LOK 76 items
  2. Picatinny 13 items
Option
  1. AR-9 5 items
  2. AR-10 14 items
  3. AR-15 116 items
  4. FN 509 1 item
  5. White - Standard Power 1 item
  6. Blue - Enhanced Power 1 item
  7. Red - Extra Power 1 item
  8. Yellow - Reduced Power 1 item
  9. White/Red - Intermediate Power 1 item
  10. Green - Rifle Length Standard Power 1 item
  11. Front 1 item
  12. Mid 1 item
  13. Rear 1 item
  14. WA 2 items
  15. KS 2 items
  16. CZ 1 item
  17. Glock 2 items
  18. Sharps Bros 1 item
  19. Small Lever 3 items
  20. Large Lever 3 items
  21. MCS 2 items
  22. Full Size 2 items
  23. Dimpled 2 items
  24. Serrated 2 items
Platform
  1. AR-9 1 item
  2. AR-10/LR308 12 items
  3. AR-15 80 items
  4. AK47/74 5 items
  5. CZ 3 items
  6. Sig Sauer 3 items
Rail Length
  1. 4" 1 item
  2. 4.25" 1 item
  3. 4.9" 1 item
  4. 5" 1 item
  5. 5.5" 1 item
  6. 5.99" 1 item
  7. 6.0" 3 items
  8. 6.7" 3 items
  9. 6.75" 1 item
  10. 6.91" 1 item
  11. 7" 10 items
  12. 7.25" 1 item
  13. 8" 5 items
  14. 8.5" 1 item
  15. 9" 4 items
  16. 9.2" 1 item
  17. 9.25" 1 item
  18. 9.3" 2 items
  19. 9.5" 20 items
  20. 9.55" 5 items
  21. 9.75" 1 item
  22. 10" 3 items
  23. 10.3" 1 item
  24. 10.5" 10 items
  25. 10.64" 2 items
  26. 10.7" 3 items
  27. 11" 2 items
  28. 11.5" 7 items
  29. 11.7" 2 items
  30. 11.75" 1 item
  31. 11.8" 1 item
  32. 12" 9 items
  33. 12.25" 1 item
  34. 12.3" 1 item
  35. 12.43" 1 item
  36. 12.5" 9 items
  37. 12.75" 1 item
  38. 12.8" 1 item
  39. 13" 8 items
  40. 13.25" 2 items
  41. 13.5" 7 items
  42. 13.7" 8 items
  43. 14" 1 item
  44. 14.3" 1 item
  45. 15" 41 items
  46. 15.25" 1 item
  47. 15.3" 1 item
  48. 15.5" 1 item
  49. 16" 1 item
  50. 16.3" 1 item
  51. 16.5" 1 item
  52. 17" 1 item
Size
  1. Medium 2 items
  2. Large 2 items
  3. 9 Slot 3 items
Thread Pitch
  1. 1/2x28 (9mm) 4 items
  2. 1/2x28 (.22 cal) 41 items
  3. 1/2x36 2 items
  4. 5/8x24 (.30 cal) 11 items
Twist Rate
  1. 1:6 1 item
  2. 1:7 42 items
  3. 1:8 4 items
  4. 1:10 6 items
  5. 1:11.25 1 item
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