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    16"
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Caliber
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  5. 243 Winchester 2 items
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  8. 350 Legend 4 items
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  10. 458 Socom 1 item
  11. 5.56mm NATO 65 items
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  17. 7.62 × 51mm NATO 1 item
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Attachment Type
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  2. 7" 3 items
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  10. 16" 2 items
  11. Carbine Length 1 item
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Handguard Style
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Upper Type
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Options
  1. W/ BCG & CH 47 items
  2. W/O BCG & CH 8 items
Barrel Length
  1. 3.1" 7 items
  2. 3.15" 1 item
  3. 3.4" 3 items
  4. 3.43" 1 item
  5. 3.46" 4 items
  6. 3.5" 1 item
  7. 3.6" 2 items
  8. 3.68" 2 items
  9. 3.7" 6 items
  10. 3.76" 2 items
  11. 3.8" 2 items
  12. 3.88" 2 items
  13. 3.9" 5 items
  14. 3.97" 1 item
  15. 4" 12 items
  16. 4.02" 10 items
  17. 4.06" 2 items
  18. 4.1" 2 items
  19. 4.25" 1 item
  20. 4.3" 4 items
  21. 4.35" 1 item
  22. 4.4" 2 items
  23. 4.45" 2 items
  24. 4.46" 1 item
  25. 4.49" 13 items
  26. 4.5" 17 items
  27. 4.56" 1 item
  28. 4.57" 1 item
  29. 4.60" 13 items
  30. 4.625" 3 items
  31. 4.64" 1 item
  32. 4.68" 1 item
  33. 4.7" 1 item
  34. 4.75" 2 items
  35. 4.8" 1 item
  36. 4.9" 1 item
  37. 5" 34 items
  38. 5.03" 7 items
  39. 5.09" 1 item
  40. 5.1" 1 item
  41. 5.2" 4 items
  42. 5.25" 1 item
  43. 5.31" 2 items
  44. 5.5" 4 items
  45. 5.6" 1 item
  46. 5.75" 1 item
  47. 5.8" 1 item
  48. 6" 3 items
  49. 6.5" 3 items
  50. 6.61" 1 item
  51. 7" 8 items
  52. 7.5" 13 items
  53. 8" 15 items
  54. 8.3" 3 items
  55. 8.5" 4 items
  56. 9" 7 items
  57. 9.2" 1 item
  58. 10" 12 items
  59. 10.3" 4 items
  60. 10.4" 1 item
  61. 10.5" 27 items
  62. 11" 1 item
  63. 11.3" 2 items
  64. 11.5" 6 items
  65. 12" 6 items
  66. 12.3" 1 item
  67. 12.5" 13 items
  68. 13.7" 2 items
  69. 13.9" 4 items
  70. 14.5" 26 items
  71. 14.7" 3 items
  72. 16" 146 items
  73. 16.1" 19 items
  74. 16.25" 2 items
  75. 16.325" 1 item
  76. 16.5" 5 items
  77. 16.75" 1 item
  78. 17.7" 2 items
  79. 18" 62 items
  80. 18.5" 11 items
  81. 20" 69 items
  82. 21" 2 items
  83. 22" 20 items
  84. 24" 29 items
  85. 26" 21 items
  86. 28" 3 items
Material
  1. 416R Stainless Steel 41 items
  2. 4150 Chrome Moly Vanadium 22 items
  3. Aluminum 22 items
  4. Carbon Fiber 2 items
  5. Carbon Fiber / Steel 4 items
  6. Chrome Moly Venadium Steel 16 items
  7. Stainless Steel 8 items
  8. Steel 6 items
Inventory
  1. In Stock 85 items
  2. Out of Stock 61 items
Customer Rating
  1. 5
    4 items
  2. 3
    & up     5 items
  3. 2
    & up     6 items

Gun Parts

Whether you’re looking for a quality trigger upgrade for your Glock® pistol or AR-style carbine, an ergonomic pistol grip for your sporting rifle, drop-in magwell upgrade, or an ergonomic pistol brace, we at GunMag Warehouse offer a wide selection of gun parts and upgrades from top-selling brands like SB Tactical®, Magpul®, Tyrant Designs®, Sig Sauer®, and more. Shop our full collection of gun parts today!

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  1. Rosco Purebred AR-15 .223 Wylde Stainless Steel Barrel
    Rosco Purebred AR-15 .223 Wylde Stainless Steel Barrel
    $221.99 $240.99 $198.99 $225.99 Save $24.00
  4. Rosco Bloodline AR-15 16" 5.56 NATO 1:7 CMV Barrel
    Rosco Bloodline AR-15 16" 5.56 NATO 1:7 CMV Barrel
    $169.99 $186.99 $152.99 $169.99 Save $17.00
  5. FN Button-Rifled AR-15 5.56 NATO 1:7 CMV Barrel
    FN Button-Rifled AR-15 5.56 NATO 1:7 CMV Barrel
    $299.99 $238.99 $279.99 Save $61.00
  6. TacFire AR-15 .223 / 5.56 Upper Receiver
    TacFire AR-15 .223 / 5.56 Upper Receiver
    Out of stock
    (1)
    $299.99 $259.99 $299.99 Save $40.00
  7. TacFire AR-15 .223 / 5.56 Unassembled Upper Receiver Kit
    TacFire AR-15 .223 / 5.56 Unassembled Upper Receiver Kit
    Out of stock
    $399.99 $264.99 $299.99 Save $135.00
  12. Ballistic Advantage Premium Series AR-10 8.6 Blackout 1:3 Stainless Steel Barrel
    Ballistic Advantage Premium Series AR-10 8.6 Blackout 1:3 Stainless Steel Barrel
    Out of stock
    $255.99 $265.99 $242.99 $251.99 Save $14.00
  13. Ballistic Advantage Premium Black Series AR-10 8.6 Blackout 1:3 Stainless Steel Barrel
    Ballistic Advantage Premium Black Series AR-10 8.6 Blackout 1:3 Stainless Steel Barrel
    Out of stock
    $255.99 $265.99 $242.99 $251.99 Save $14.00
  14. Aero Precision M5 AR-10 16" SS .308 Upper Receiver w/ ATLAS S-ONE 15" M-LOK Handguard
    Aero Precision M5 AR-10 16" SS .308 Upper Receiver w/ ATLAS S-ONE 15" M-LOK Handguard
    Out of stock
    $780.99 $820.99 $699.99 $739.99 Save $81.00
  25. Odin Works Super Lite AR-15 16" 9mm 1:10 Stainless Steel Barrel
    Odin Works Super Lite AR-15 16" 9mm 1:10 Stainless Steel Barrel
    Out of stock
    $249.99 $236.99 Save $13.00
  30. Aero Precision AR-15 16" 5.56 Upper Receiver w/ Magpul MOE SL M-LOK Handguard
    Aero Precision AR-15 16" 5.56 Upper Receiver w/ Magpul MOE SL M-LOK Handguard
    Out of stock
    $460.99 $414.99 Save $46.00
  31. Ballistic Advantage Classic Series AR-15 5.56 1:7 CHF CL Barrel w/ Lo Pro Gas Block
    Ballistic Advantage Classic Series AR-15 5.56 1:7 CHF CL Barrel w/ Lo Pro Gas Block
    Out of stock
    $300.99 $330.99 $285.99 $313.99 Save $17.00
  32. LBE Unlimited AR-15 16" 5.56 NATO 1:7 CMV Barrel
    LBE Unlimited AR-15 16" 5.56 NATO 1:7 CMV Barrel
    Out of stock
    $134.99 $159.99 $134.99 $146.99 Save $13.00
  38. Geissele Automatics Super Duty MOD1 AR-15 16" 5.56 NATO Upper Receiver with 15" SMR MK16 M-LOK Handguard
    Geissele Automatics Super Duty MOD1 AR-15 16" 5.56 NATO Upper Receiver with 15" SMR MK16 M-LOK Handguard
    Out of stock
    $1,325.99 $1,450.99
  39. Aero Precision EPC-9 AR-15 16" 9mm CMV Upper Receiver w/ ATLAS S-ONE 15" M-LOK Handguard
    Aero Precision EPC-9 AR-15 16" 9mm CMV Upper Receiver w/ ATLAS S-ONE 15" M-LOK Handguard
    Out of stock
    $590.99 $625.99 $529.99 $564.99 Save $61.00
  40. Aero Precision M4E1 AR-15 16" CMV 5.56 Upper Receiver w/ 15" ATLAS S-ONE M-LOK Handguard
    Aero Precision M4E1 AR-15 16" CMV 5.56 Upper Receiver w/ 15" ATLAS S-ONE M-LOK Handguard
    Out of stock
    $655.99 $690.99 $589.99 $624.99 Save $66.00
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