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Upper Receivers & Barrels

Upper Receivers & Barrels
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54 Items

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  1. AR-15 / ZM4 Barrel Nut, Mil-Spec, by DS Arms, *NEW*
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    AR-15 / ZM4 Barrel Nut, Mil-Spec, by DS Arms, *NEW*
    $8.99
  2. Colt M16A2 Heavy Barrel Upper Assembly, 20" HBAR, Bolt Assembly, 1/7 Twist, 5.56x45 NATO *Good*
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    Colt M16A2 Heavy Barrel Upper Assembly, 20" HBAR, Bolt Assembly, 1/7 Twist, 5.56x45 NATO *Good*
    $1,650.00
  3. Colt M4 LE6921 Carbine Upper Assembly, 14.5" 1/7 CL BBL, 5.56X45 NATO *NEW in BOX*
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    Colt M4 LE6921 Carbine Upper Assembly, 14.5" 1/7 CL BBL, 5.56X45 NATO *NEW in BOX*
    Rating:
    100%
    1 Review

    As low as $0.00

    Out of stock
  4. Colt LE6921EPR-CK Upper W/Bolt Carrier Assembly & Charging Handle, 14.5" CL 1/7 BBL, CMR MLOK Rail, 5.56X45 NATO *New in Box*
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    Colt LE6921EPR-CK Upper W/Bolt Carrier Assembly & Charging Handle, 14.5" CL 1/7 BBL, CMR MLOK Rail, 5.56X45 NATO *New in Box*
    $1,169.00
  5. Colt M4 Carbine Upper Assembly, 16" Chrome Lined 1/7 Barrel, LE6920, 5.56X45 NATO *NEW in BOX*
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    Colt M4 Carbine Upper Assembly, 16" Chrome Lined 1/7 Barrel, LE6920, 5.56X45 NATO *NEW in BOX*
    $549.95
  6. Colt LE6920EPR-CK Upper W/Bolt Carrier Assembly & Charging Handle, 16" CL 1/7 BBL, MBUS Pro, CMR MLOK Rail, 5.56X45 NATO *New in Box*
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    Colt LE6920EPR-CK Upper W/Bolt Carrier Assembly & Charging Handle, 16" CL 1/7 BBL, MBUS Pro, CMR MLOK Rail, 5.56X45 NATO *New in Box*
    $1,249.00
  7. Colt 604 M16 Upper Assembly, 20" Pencil Barrel, A2 Round Handguards, 1966-1968, 5.56 NATO *Good*
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    Colt 604 M16 Upper Assembly, 20" Pencil Barrel, A2 Round Handguards, 1966-1968, 5.56 NATO *Good*
    $1,575.00
  8. Colt 604 M16 Upper Assembly, 20" Pencil Barrel, Triangle Handguards, No Ejection Port Cover, 1969-1970, 5.56 NATO *Good*
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    Colt 604 M16 Upper Assembly, 20" Pencil Barrel, Triangle Handguards, No Ejection Port Cover, 1969-1970, 5.56 NATO *Good*
    $1,465.00
  9. Colt M16A4 Upper Assembly, 20" 1/7 Chrome Lined BBL, w/A4 Carry Handle, 5.56X45 NATO *NEW*
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    Colt M16A4 Upper Assembly, 20" 1/7 Chrome Lined BBL, w/A4 Carry Handle, 5.56X45 NATO *NEW*

    As low as $729.80

  10. Colt M16A4 Flat Top Upper Assembly, 20" 1/7 Twist Chrome Lined BBL, 5.56X45 NATO *NEW*
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    Colt M16A4 Flat Top Upper Assembly, 20" 1/7 Twist Chrome Lined BBL, 5.56X45 NATO *NEW*

    As low as $0.00

    Out of stock
  11. Colt 604 M16 Upper Assembly, 20" Government Profile Barrel, Slickside Bolt Assembly, No Ejection Port Cover, 5.56 NATO *Good*
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    Colt 604 M16 Upper Assembly, 20" Government Profile Barrel, Slickside Bolt Assembly, No Ejection Port Cover, 5.56 NATO *Good*
    $1,750.00
  12. Colt 604 M16 Upper, 20" Pencil Barrel, Chrome Bore, Cage Flash Hider, Triangle Handguards, Grey Finish 1970-1971 Production, 5.56 NATO *Good*
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    Colt 604 M16 Upper, 20" Pencil Barrel, Chrome Bore, Cage Flash Hider, Triangle Handguards, Grey Finish 1970-1971 Production, 5.56 NATO *Good*
    $1,425.00
  13. Colt 601 M16 Upper Assembly, 20" Pencil Barrel, Chrome Bolt Assy, Triangle Charging Handle, 5.56x45 NATO *Good*
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    Colt 601 M16 Upper Assembly, 20" Pencil Barrel, Chrome Bolt Assy, Triangle Charging Handle, 5.56x45 NATO *Good*
    $3,250.00
  14. Colt 601 M16 Upper Assembly, 20" Pencil Barrel, Chrome Bolt Assy, Triangle Charging Handle, Early Bend, Painted Receiver, 5.56x45 NATO *Good*
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    Colt 601 M16 Upper Assembly, 20" Pencil Barrel, Chrome Bolt Assy, Triangle Charging Handle, Early Bend, Painted Receiver, 5.56x45 NATO *Good*
    $3,150.00
  15. Colt AR-15 / M16 / M4 Gas Block, Low Profile *NEW*
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    Colt AR-15 / M16 / M4 Gas Block, Low Profile *NEW*
    $47.95
  16. Colt AR-15 / M16A1 / M4 Charging Handle Assembly *NEW*
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    Colt AR-15 / M16A1 / M4 Charging Handle Assembly *NEW*
    $59.95
  17. Colt AR-15 / M16A2 Front Sight Base *NEW*
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    Colt AR-15 / M16A2 Front Sight Base *NEW*
    $38.95
  18. Colt AR-15 / M4 / M16 Carbine Gas Tube (9-3/4") With Front Sight Base *NEW*
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    Colt AR-15 / M4 / M16 Carbine Gas Tube (9-3/4") With Front Sight Base *NEW*
    $46.50
  19. Colt AR-15 / SMG 9mm Barrel Assembly, 16" 1/10 Chrome Lined, w/Nut, Front Sight, Sling Swivel, & Flash Hider *NIB*
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    Colt AR-15 / SMG 9mm Barrel Assembly, 16" 1/10 Chrome Lined, w/Nut, Front Sight, Sling Swivel, & Flash Hider *NIB*
    Out of stock
  20. AR-15 Pistol Barrel, 7 Inch, 1/9 RH Twist, 5.56mm, Stainless, *NEW*
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    AR-15 Pistol Barrel, 7 Inch, 1/9 RH Twist, 5.56mm, Stainless, *NEW*
    Out of stock
  21. AR-15 Pistol Barrel, 7 Inch, 1/10 RH Twist, 7.62X39, Nitrided, *NEW*
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    AR-15 Pistol Barrel, 7 Inch, 1/10 RH Twist, 7.62X39, Nitrided, *NEW*
    Out of stock
  22. AR-15 Pistol Barrel, 10.5 Inch, 1/10 RH Twist, 7.62X39, Nitrided, *NEW*
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    AR-15 Pistol Barrel, 10.5 Inch, 1/10 RH Twist, 7.62X39, Nitrided, *NEW*
    Out of stock
  23. AR-15 Pistol Barrel, 11.5 Inch, 1/7 RH Twist, 5.56mm, Nitrided, *NEW*
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    AR-15 Pistol Barrel, 11.5 Inch, 1/7 RH Twist, 5.56mm, Nitrided, *NEW*
    Out of stock
  24. AR-15 M4 Barrel, 16 Inch, 1/9 RH Twist, 5.56mm, Nitrided, *NEW*
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    AR-15 M4 Barrel, 16 Inch, 1/9 RH Twist, 5.56mm, Nitrided, *NEW*
    Out of stock
  25. M4 Carry Handle with Adjustable Sight, GI Issue, Very Good
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    M4 Carry Handle with Adjustable Sight, GI Issue, *Very Good*
    Out of stock
  26. AR-15 / M4 Heavy Barrel, No Extension, In The White, .223/5.56
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    AR-15 / M4 Heavy Barrel, No Extension, In The White, .223/5.56
    Out of stock
  27. AR-15 / M16 20" A2 Barrel, Take-Off, .223/5.56 *Good*
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    AR-15 / M16 20" A2 Barrel, Take-Off, .223/5.56 *Good*
    Out of stock
  28. Colt M4 Carbine Barrel Assembly, 14.5", 1/7 Twist, Chrome Lined w/Barrel Nut & Front Sight, 5.56X45 NATO *NEW in Box*
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    Colt M4 Carbine Barrel Assembly, 14.5", 1/7 Twist, Chrome Lined w/Barrel Nut & Front Sight, 5.56X45 NATO *NEW in Box*
    Out of stock
  29. Colt M4A1 SOCOM Barrel Assembly, 14.5", 1/7 Twist, Chrome Lined w/Barrel Nut & Front Sight, 5.56X45 NATO *Excellent / Blemished / In Box*
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    Colt M4A1 SOCOM Barrel Assembly, 14.5", 1/7 Twist, Chrome Lined w/Barrel Nut & Front Sight, 5.56X45 NATO *Excellent / Blemished / In Box*
    Out of stock
  30. Colt M4A1 SOCOM Barrel Assembly, 14.5", 1/7 Twist, Chrome Lined w/Barrel Nut & Front Sight, 5.56X45 NATO *NEW*
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    Colt M4A1 SOCOM Barrel Assembly, 14.5", 1/7 Twist, Chrome Lined w/Barrel Nut & Front Sight, 5.56X45 NATO *NEW*
    Out of stock
  31. Colt M4 COMMANDO Carbine Barrel Assembly, 11.5 Inch, 1/7 Twist, Chrome Lined w/ Barrel Nut & Front Sight, LE6933 Gov't Profile, 5.56X45 NATO *NEW in Box*
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    Colt M4 COMMANDO Carbine Barrel Assembly, 11.5 Inch, 1/7 Twist, Chrome Lined w/ Barrel Nut & Front Sight, LE6933 Gov't Profile, 5.56X45 NATO *NEW in Box*
    Out of stock
  32. Colt M4 Barrel Assembly, 16.1", 1/7 Twist, Chrome Lined w/ Barrel Nut & Front Sight, LE6920 Gov't Profile, 5.56X45 NATO *NEW in Box*
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    Colt M4 Barrel Assembly, 16.1", 1/7 Twist, Chrome Lined w/ Barrel Nut & Front Sight, LE6920 Gov't Profile, 5.56X45 NATO *NEW in Box*
    Out of stock
  33. Colt M4A1 SOCOM Barrel Assembly, 14.5", 1/7 Twist, Chrome Lined w/Barrel Nut & Front Sight, NO Swivel, 5.56X45 NATO *NEW*
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    Colt M4A1 SOCOM Barrel Assembly, 14.5", 1/7 Twist, Chrome Lined w/Barrel Nut & Front Sight, NO Swivel, 5.56X45 NATO *NEW*
    Out of stock
  34. Colt M4A1 SOCOM Barrel Assembly, 14.5", 1/7 Twist, Chrome Lined w/Barrel Nut & Front Sight, 5.56X45 NATO *Blem / New In Box*
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    Colt M4A1 SOCOM Barrel Assembly, 14.5", 1/7 Twist, Chrome Lined w/Barrel Nut & Front Sight, 5.56X45 NATO *Blem / New In Box*
    Out of stock
  35. Colt Heavy Barrel Assembly, HBAR, 11.5", 1/7 Twist, Chrome Lined w/Barrel Nut & Front Sight, 5.56X45 NATO *NEW*
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    Colt Heavy Barrel Assembly, HBAR, 11.5", 1/7 Twist, Chrome Lined w/Barrel Nut & Front Sight, 5.56X45 NATO *NEW*
    Out of stock
  36. Colt 604 M16 Upper Assembly, 20" Government Profile Barrel, Bolt Assembly, A1 Birdcage, 1/7 Twist 5.56x45 NATO *Very Good*
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    Colt 604 M16 Upper Assembly, 20" Government Profile Barrel, Bolt Assembly, A1 Birdcage, 1/7 Twist 5.56x45 NATO *Very Good*
    Out of stock
  37. Colt LE6933 M4 Commando Carbine Barrel w/Extension, Chrome Lined, 11.5" 1/7 Twist, 5.56X45 NATO *NEW*
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    Colt LE6933 M4 Commando Carbine Barrel w/Extension, Chrome Lined, 11.5" 1/7 Twist, 5.56X45 NATO *NEW*
    Rating:
    100%
    1 Review
    Out of stock
  38. Colt LE6933 M4 Commando Carbine Project Barrel w/Extension, Chrome Lined, 11.5" 1/7 Twist, Thin Muzzle Threads, 5.56X45 NATO *NEW*
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    Colt LE6933 M4 Commando Carbine Project Barrel w/Extension, Chrome Lined, 11.5" 1/7 Twist, Thin Muzzle Threads, 5.56X45 NATO *NEW*
    Out of stock
  39. Colt M4 Carbine Barrel Assembly, Chrome Lined, 14.5" 1/7 Twist, w/Barrel Nut & Low Profile Gas Block , 5.56X45 NATO *NEW*
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    Colt M4 Carbine Barrel Assembly, Chrome Lined, 14.5" 1/7 Twist, w/Barrel Nut & Low Profile Gas Block , 5.56X45 NATO *NEW*
    Out of stock
  40. Smith & Wesson M&P 15 / AR-15 Upper Assembly, 14.5" Barrel, Quad Rail Hanguards, Bolt Carrier Assembly, Charging Handle, 5.56X45 NATO *Good*
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    Smith & Wesson M&P 15 / AR-15 Upper Assembly, 14.5" Barrel, Quad Rail Hanguards, Bolt Carrier Assembly, Charging Handle, 5.56X45 NATO *Good*
    Out of stock
  41. Smith & Wesson M&P 15 / AR-15 Upper Assembly, 14.5" Barrel, Quad Rail Hanguards, F/A Bolt Carrier Assembly, 5.56X45 NATO *Good/Rusty*
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    Smith & Wesson M&P 15 / AR-15 Upper Assembly, 14.5" Barrel, Quad Rail Hanguards, F/A Bolt Carrier Assembly, 5.56X45 NATO *Good/Rusty*
    Out of stock
  42. Colt AR-15 / SMG 9mm Barrel Assembly, 16" 1/10 Chrome Lined, w/Nut, Front Sight & Flash Hider *NEW*
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    Colt AR-15 / SMG 9mm Barrel Assembly, 16" 1/10 Chrome Lined, w/Nut, Front Sight & Flash Hider *NEW*
    Rating:
    100%
    1 Review
    Out of stock
  43. AR-15 Project Heavy Barrel Upper, 16" HBAR, Non-Threaded Muzzle, 5.56x45 NATO *Good*
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    AR-15 Project Heavy Barrel Upper, 16" HBAR, Non-Threaded Muzzle, 5.56x45 NATO *Good*
    Out of stock
  44. Colt 604 M16 Upper Assembly, 20" Barrel, 3-Prong Flash Hider, Bolt Assembly, Charging Handle, 1966-1969, Grey Finish. 5.56 NATO *Good*
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    Colt 604 M16 Upper Assembly, 20" Barrel, 3-Prong Flash Hider, Bolt Assembly, Charging Handle, 1966-1969, Grey Finish. 5.56 NATO *Good*
    Out of stock
  45. Colt 604 M16 Project Upper, 20" Pencil Barrel, Chrome Bore, Cage Flash Hider, Triangle Handguards, 1970-1971 Production, Ring in Bore, 5.56 NATO *As Is*
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    Colt 604 M16 Project Upper, 20" Pencil Barrel, Chrome Bore, Cage Flash Hider, Triangle Handguards, 1970-1971 Production, Ring in Bore, 5.56 NATO *As Is*
    Out of stock
  46. M4 / M16A2 Heavy Barrel Sporter Upper Assembly, 20" HBAR, No Bayonet Lug, 5.56x45 NATO *Good*
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    M4 / M16A2 Heavy Barrel Sporter Upper Assembly, 20" HBAR, No Bayonet Lug, 5.56x45 NATO *Good*
    Out of stock
  47. Colt 604 M16 Upper Assembly, 20" Pencil Barrel, Triangle Handguards, Bolt Assembly, Charging Handle, 5.56 NATO *Good*
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    Colt 604 M16 Upper Assembly, 20" Pencil Barrel, Triangle Handguards, Bolt Assembly, Charging Handle, 5.56 NATO *Good*
    Out of stock
  48. Colt 604 M16 Upper Assembly, 20" Pencil Barrel, Chrome Bore, Cage Flash Hider, Late Triangle Handguards, Grey Finish, 5.56 NATO *Good*
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    Colt 604 M16 Upper Assembly, 20" Pencil Barrel, Chrome Bore, Cage Flash Hider, Late Triangle Handguards, Grey Finish, 5.56 NATO *Good*
    Out of stock
  49. Colt 604 M16 Upper Assembly, 20" Pencil Barrel, Triangle Handguards, Refinished, 5.56 NATO *Good*
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    Colt 604 M16 Upper Assembly, 20" Pencil Barrel, Triangle Handguards, Refinished, 5.56 NATO *Good*
    Out of stock
  50. Colt M16A1 Upper Receiver w/Teardrop Fwd Assist, No Ejection Cover, Black Painted *Good*
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    Colt M16A1 Upper Receiver w/Teardrop Fwd Assist, No Ejection Cover, Black Painted *Good*
    Rating:
    73%
    1 Review
    Out of stock
  51. Colt 604 / M16A1 Upper Receiver with Teardrop Forward Assist, Complete, Loose Dust Cover *Fair*
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    Colt 604 / M16A1 Upper Receiver with Teardrop Forward Assist, Complete, Loose Dust Cover *Fair*
    Out of stock
  52. Colt AR-15 / M16A4 / M4 Carry Handle Assembly, Forged *NEW*
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    Colt AR-15 / M16A4 / M4 Carry Handle Assembly, Forged *NEW*
    Out of stock
  53. M4 Carry Handle with Adjustable Sight, GI Issue, Good
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    M4 Carry Handle with Adjustable Sight, GI Issue, Good
    Out of stock
  54. AR15/M16 Barrel Indexing Pin
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    AR-15 / M16 Barrel Indexing Pin
    Out of stock
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54 Items

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Price
  1. $0.00 - $999.99 39 item
  2. $1,000.00 - $1,999.99 13 item
  3. $3,000.00 - $3,999.99 2 item
Condition
  1. New 17 item
  2. New In Box 7 item
  3. Blemished 1 item
  4. Very Good 3 item
  5. Good 16 item
  6. Fair 1 item
  7. As-Is 1 item
Condition
  1. New In Wrap 1 item
  2. New In Box 9 item
  3. Excellent 1 item
  4. Blemished 1 item
  5. Very Good 5 item
  6. Good 15 item
  7. Fair 1 item
  8. As-Is 1 item
Color
  1. Black 26 item
  2. Gray 23 item
  3. Plain Steel 3 item
  4. Yellow 2 item
Finish
  1. Anodized 11 item
  2. Coated 5 item
  3. NiBX (Nitride) 1 item
  4. Original Finish 17 item
  5. Painted 1 item
  6. Parkerized 13 item
Grade
  1. B-Model 1 item
Cost 3
  1. $0.00 - $99.99 3 item
New/Surplus
  1. NEW 31 item
  2. Used/Surplus 23 item
Barrel Length
  1. 11.5" 2 item
  2. 14.5" 6 item
  3. 16" 4 item
  4. 20" 7 item
Type
  1. Aluminum 11 item
  2. Nylon 1 item
  3. Steel 21 item