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  1. Color
    Black
  2. Handguard Style
    Free Float
  3. Options
    W/ BCG & CH
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  1. Battle Arms Development 4 items
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  1. 4" 1 item
  2. 5.5" 1 item
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  6. 12" 1 item
  7. 12.25" 1 item
  8. 13.5" 2 items
  9. 15" 14 items
  10. 15.25" 2 items
  11. 17.5" 1 item
Handguard Style
  1. Free Float 31 items
Upper Type
  1. Pistol 4 items
  2. Rifle 25 items
Options
  1. W/ BCG & CH 31 items
  2. W/O BCG & CH 8 items
Barrel Length
  1. 4" 1 item
  2. 4.5" 1 item
  3. 5" 3 items
  4. 7" 1 item
  5. 7.5" 3 items
  6. 8" 1 item
  7. 8.5" 1 item
  8. 10" 2 items
  9. 10.5" 4 items
  10. 16" 21 items
  11. 18" 5 items
  12. 20" 3 items
  13. 22" 1 item
  14. 24" 1 item
Material
  1. Aluminum 17 items
  2. Steel 1 item
Inventory
  1. In Stock 16 items
  2. Out of Stock 15 items
Customer Rating
  1. 5
    1 item
  2. 2
    & up     2 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!

  1. TacFire AR-10 .308 / 7.62x51mm Upper Receiver - 10"
    TacFire AR-10 .308 / 7.62x51mm Upper Receiver
    $499.99 $354.99 $369.99 Save $145.00
  3. TacFire AR-15 300 Blackout Unassembled Pistol Kit w/ Lower Parts Kit - 10.5"
    TacFire AR-15 300 Blackout Unassembled Pistol Kit w/ Lower Parts Kit
    (1)
    $359.99 $499.99 $309.99 $329.99 Save $170.00
  4. TacFire AR-15 9mm Unassembled Pistol Kit w/ Lower Parts Kit- 10"
    TacFire AR-15 9mm Unassembled Pistol Kit w/ Lower Parts Kit
    (1)
    $499.99 $279.99 $319.99 Save $220.00
  5. TacFire AR-15 .45 ACP Unassembled Pistol Kit w/ Lower Parts Kit - 10"
    TacFire AR-15 .45 ACP Unassembled Pistol Kit w/ Lower Parts Kit
    $499.99 $309.99 $329.99 Save $190.00
  6. TacFire AR-10 308 / 7.62x51 Upper Receiver without Forward Assist - 16"
    TacFire AR-10 .308 / 7.62x51 Upper Receiver without Forward Assist
    $599.99 $369.99 Save $230.00
  7. RISE Armament AR-15 18" SS 6mm ARC Assembled Upper Receiver with Free Float 15" M-LOK Handguard - BLK
    RISE Armament AR-15 18" SS 6mm ARC Assembled Upper Receiver with Free-Float 15" M-LOK Handguard
    $1,199.99 $999.99 Save $200.00
  8. TacFire AR-10 .308 / 7.62x51 Unassembled Rifle Kit w/ Lower Parts Kit - 16"
    TacFire AR-10 .308 / 7.62x51 Unassembled Rifle Kit w/ Lower Parts Kit
    $699.99 $419.99 Save $280.00
  9. Battle Arms Development WORKHORSE Mod C AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard - Black
    Battle Arms Development WORKHORSE Mod C AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    Out of stock
    $692.99 $659.99 Save $33.00
  10. Geissele Automatics Super Duty MOD1 AR-15 13.9" Pinned / 16" OAL 5.56 Upper Receiver with Free Float M-LOK Handguard - BLK
    Geissele Automatics Super Duty MOD1 AR-15 13.9" Pinned / 16" OAL 5.56 Upper Receiver with Free Float M-LOK Handguard
    Out of stock
    $1,325.99 $1,450.99
  13. Battle Arms Development Authority Elite AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard - Black
    Battle Arms Development Authority Elite AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    $865.99 $824.99 Save $41.00
  14. Battle Arms Development WORKHORSE AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard - Black
    Battle Arms Development WORKHORSE AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    $724.99 $692.99 Save $32.00
  16. Battle Arms Development Authority Elite Mod C AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard - Black
    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
  17. TacFire AR-15 .223 / 5.56 Unassembled Pistol Kit w/ Lower Parts Kit - 10.5"
    TacFire AR-15 .223 / 5.56 Unassembled Pistol Kit w/ Lower Parts Kit
    Out of stock
    $399.99 $279.99 $349.99 Save $120.00
  23. Geissele Automatics Super Duty MOD1 AR-15 14.5" Pinned / 16" OAL 5.56 Upper Receiver with Free Float M-LOK Handguard - BLK
    Geissele Automatics Super Duty MOD1 AR-15 14.5" Pinned / 16" OAL 5.56 Upper Receiver with Free Float M-LOK Handguard
    Out of stock
    $1,325.99 $1,450.99
  24. Geissele Automatics Super Duty MOD1 AR-15 16" 5.56 NATO Upper Receiver with 15" SMR MK16 M-LOK Handguard - BLK
    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
  28. CMMG BANSHEE Mk10 AR-15 8" CM 10mm Upper Receiver w/ EML7 7" M-LOK Handguard - Armor Black
    CMMG BANSHEE Mk10 AR-15 8" CM 10mm Upper Receiver w/ EML7 7" M-LOK Handguard
    Out of stock
    $924.99 $804.99 $834.99 Save $120.00
  31. RISE Armament AR-15 18" SS 22 ARC Assembled Upper Receiver with Free Float 15" M-LOK Handguard - BLK
    RISE Armament AR-15 18" SS 22 ARC Assembled Upper Receiver with Free Float 15" M-LOK Handguard
    $1,199.99 $999.99 Save $200.00
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