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  1. Platform
    AR-15
  2. Caliber
    5.56mm NATO
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  1. Aero Precision 2 items
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  1. AR-15 83 items
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  3. Primary Weapons Systems 1 item
Caliber
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  6. 300 AAC Blackout 25 items
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  11. 5.56mm NATO 83 items
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  16. 9mm Luger 16 items
Capacity
  1. 10-Round 2 items
Attachment Type
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  3. Picatinny 9 items
Handguard Length
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  2. 6.5" 1 item
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  6. 10" 4 items
  7. 12" 1 item
  8. 12.25" 2 items
  9. 13.5" 3 items
  10. 15" 18 items
  11. Carbine Length 1 item
  12. Mid Length 1 item
Handguard Style
  1. Free Float 26 items
Upper Type
  1. Pistol 7 items
  2. Rifle 30 items
Options
  1. BCG Only 1 item
  2. W/ BCG & CH 31 items
  3. W/O BCG & CH 10 items
Barrel Length
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  2. 7" 2 items
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  6. 10.3" 2 items
  7. 10.5" 11 items
  8. 11.3" 2 items
  9. 11.5" 5 items
  10. 12.3" 1 item
  11. 12.5" 4 items
  12. 13.7" 2 items
  13. 13.9" 4 items
  14. 14.5" 13 items
  15. 14.7" 3 items
  16. 16" 61 items
  17. 16.1" 2 items
  18. 16.25" 1 item
  19. 16.325" 1 item
  20. 16.5" 1 item
  21. 17.7" 2 items
  22. 18" 15 items
  23. 20" 9 items
Material
  1. 416R Stainless Steel 16 items
  2. 4150 Chrome Moly Vanadium 12 items
  3. Aluminum 26 items
  4. Carbon Fiber / Steel 1 item
  5. Chrome Moly Venadium Steel 12 items
  6. Polymer 2 items
  7. Stainless Steel 5 items
Inventory
  1. In Stock 55 items
  2. Out of Stock 28 items
Customer Rating
  1. 5
    4 items
  2. 4
    & 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. TacFire AR-15 .223 / 5.56 Upper Receiver
    TacFire AR-15 .223 / 5.56 Upper Receiver
    (1)
    $299.99 $259.99 $299.99 Save $40.00
  2. TacFire AR-15 .223 / 5.56 Unassembled Upper Receiver Kit
    TacFire AR-15 .223 / 5.56 Unassembled Upper Receiver Kit
    $399.99 $264.99 $299.99 Save $135.00
  3. FN AR-15 5.56 NATO 1:7 CMV CHF CL Barrel
    FN AR-15 5.56 NATO 1:7 CMV CHF CL Barrel
    $399.99 $269.99 $289.99 Save $130.00
  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. PROOF Research AR-15 .223 Wylde Stainless Steel Barrel
    PROOF Research AR-15 .223 Wylde Stainless Steel Barrel
    $629.99 $749.99 $569.99 $649.99 Save $100.00
  6. FAB Defense GL-CORE M Survival Mil-Spec / Commercial Stock with Built-In 10-Round Magazine Carrier
    FAB Defense GL-CORE M Survival Mil-Spec / Commercial Stock with Built-In 10-Round Magazine Carrier
    $99.99 $83.99 Save $16.00
  10. CMMG DISSENT Mk4 AR-15 10.5" CM 5.56MM Upper Receiver w/ 9.6" M-LOK Handguard
    CMMG DISSENT Mk4 AR-15 10.5" CM 5.56MM Upper Receiver w/ 9.6" M-LOK Handguard
    (1)
    $1,349.99 $1,399.99 $1,024.99 $1,035.99 Save $364.00
  11. FightLite MCR Dual-Feed AR-15 16.25" Assembled Upper Receiver
    FightLite MCR Dual-Feed AR-15 16.25" Assembled Upper Receiver
    $6,399.99 $5,899.99 Save $500.00
  14. 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 $234.99 $279.99 Save $65.00
  15. Ballistic Advantage Premium AR-15 Mid-Length Gas .223 Wylde 1:8 SS Barrel w/ .750 Lo Pro Gas Block
    Ballistic Advantage Premium AR-15 Mid-Length Gas .223 Wylde 1:8 SS Barrel w/ .750 Lo Pro Gas Block
    $245.99 $260.99 $232.99 $247.99 Save $13.00
  16. Ballistic Advantage Premium Black AR-15 Mid-Length Gas .223 Wylde 1:8 Stainless Steel Barrel w/ .750 Lo Pro Gas Block
    Ballistic Advantage Premium Black AR-15 Mid-Length Gas .223 Wylde 1:8 Stainless Steel Barrel w/ .750 Lo Pro Gas Block
    $245.99 $232.99 Save $13.00
  17. Ballistic Advantage Premium Series AR-15 .223 Wylde 1:8 Stainless Steel Barrel
    Ballistic Advantage Premium Series AR-15 .223 Wylde 1:8 Stainless Steel Barrel
    (1)
    $190.99 $300.99 $180.99 $285.99 Save $15.00
  18. Ballistic Advantage Premium Series AR-15 .223 Wylde 1:8 SS Barrel w/ OPS 12
    Ballistic Advantage Premium Series AR-15 .223 Wylde 1:8 SS Barrel w/ OPS 12
    $205.99 $220.99 $194.99 $209.99 Save $11.00
  19. Ballistic Advantage Premium Black Series AR-15 .223 Wylde 1:8 SS Barrel w/ OPS 12
    Ballistic Advantage Premium Black Series AR-15 .223 Wylde 1:8 SS Barrel w/ OPS 12
    $205.99 $220.99 $194.99 $209.99 Save $11.00
  20. Ballistic Advantage Premium Black Series AR-15 .223 Wylde 1:8 Stainless Steel Barrel
    Ballistic Advantage Premium Black Series AR-15 .223 Wylde 1:8 Stainless Steel Barrel
    $200.99 $270.99 $190.99 $256.99 Save $14.00
  21. Ballistic Advantage Classic Series AR-15 Carbine-Length Gas 5.56 1:7 CMV CL Barrel
    Ballistic Advantage Classic Series AR-15 Carbine-Length Gas 5.56 1:7 CMV CL Barrel
    $157.99 $185.99 $124.99 $175.99 Save $56.00
  22. Ballistic Advantage Modern Series AR-15 5.56 1:7 CMV Barrel
    Ballistic Advantage Modern Series AR-15 5.56 1:7 CMV Barrel
    $125.99 $195.99 $118.99 $185.99 Save $12.00
  23. Ballistic Advantage Performance Series AR-15 5.56 1:7 CMV Barrel w/ .750 Lo Pro Gas Block
    Ballistic Advantage Performance Series AR-15 5.56 1:7 CMV Barrel w/ .750 Lo Pro Gas Block
    $205.99 $235.99 $194.99 $223.99 Save $12.00
  24. Ballistic Advantage Performance Series AR-15 5.56 1:7 CMV Barrel w/ .625 Lo Pro Gas Block
    Ballistic Advantage Performance Series AR-15 5.56 1:7 CMV Barrel w/ .625 Lo Pro Gas Block
    $220.99 $245.99 $209.99 $232.99 Save $13.00
  25. 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
  26. PROOF Research AR-15 .223 Wylde 1:7 Carbon Fiber-Wrapped Barrel
    PROOF Research AR-15 .223 Wylde 1:7 Carbon Fiber-Wrapped Barrel
    $999.99 $1,149.99 $899.99 $999.99 Save $150.00
  28. DMA Inc. XTS AR-15 5.56 NATO 4150 CMV Barrel
    DMA Inc. XTS AR-15 5.56 NATO 4150 CMV Barrel
    $119.99 $144.99 $79.99 $115.99 Save $45.00
  31. TacFire AR-15 .223 / 5.56 Unassembled Pistol Kit w/ Lower Parts Kit
    TacFire AR-15 .223 / 5.56 Unassembled Pistol Kit w/ Lower Parts Kit
    $399.99 $279.99 $349.99 Save $120.00
  36. Faxon Firearms Duty Series AR-15 5.56 NATO 1:8 4150 CMV Barrel
    Faxon Firearms Duty Series AR-15 5.56 NATO 1:8 4150 CMV Barrel
    $163.99 $191.99 $150.99 $176.99 Save $15.00
  40. Battle Arms Development Authority Elite Mod C AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    Battle Arms Development Authority Elite Mod C AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    $865.99 $824.99 Save $41.00
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