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  1. Color
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  8. 12.25" 1 item
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  11. 15.25" 2 items
  12. 16" 2 items
  13. 17.5" 1 item
  14. Carbine Length 1 item
  15. Mid Length 1 item
Handguard Style
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Upper Type
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  2. Rifle 35 items
Options
  1. W/ BCG & CH 52 items
  2. W/O BCG & CH 47 items
Barrel Length
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  2. 4.5" 1 item
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  11. 12.5" 2 items
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  13. 16" 37 items
  14. 16.25" 1 item
  15. 18" 5 items
  16. 20" 4 items
  17. 22" 1 item
  18. 24" 1 item
Material
  1. 4150 Chrome Moly Vanadium 1 item
  2. Aluminum 22 items
  3. Steel 3 items
  4. Steel / Polymer 2 items
Inventory
  1. In Stock 32 items
  2. Out of Stock 20 items
Customer Rating
  1. 5
    2 items
  2. 3
    & up     3 items
  3. 2
    & up     5 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. 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
  3. 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
  7. 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
  11. Faxon ARAK-21 AR-15 7.62x39 Upper Receiver w/ Picatinny Handguard -12.5"
    Faxon ARAK-21 AR-15 7.62x39 Upper Receiver w/ Picatinny Handguard
    Out of stock
    $999.99 $920.99 Save $79.00
  12. 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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