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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. Ballistic Advantage Performance AR-15 18" Carbine-Length Gas .350 Legend 1:16 CMV Barrel
    Ballistic Advantage Performance Series AR-15 Carbine-Length Gas .350 Legend 1:16 CMV Barrel
    Out of stock
    $215.99 $260.99 $204.99 $247.99 Save $13.00
  2. Ballistic Advantage AR-15 13.9" Mid-Length Gas 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
  3. CMMG AR-15 16.1" .22 LR 1:16 CM Barrel
    CMMG AR-15 .22 LR 1:16 CM Barrel
    Out of stock
    $174.99 $149.99 Save $25.00
  4. 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
  5. Odin Works DMR Heavy AR-15 20" Rifle-Length Gas 6.5 Grendel 1:8 416R Black Nitride Stainless Steel Barrel with Tunable Gas Block
    Odin Works AR-15 6.5 Grendel 1:8 Stainless Steel Barrel w/ Tunable Gas Block
    Out of stock
    $335.99 $360.99 $318.99 $342.99 Save $18.00
  6. Odin Works DMR Heavy AR-15 18" Intermediate-Length Gas 6.5 Grendel 1:8 416R Black Nitride Stainless Steel Barrel with Tunable Gas Block
    Odin Works AR-15 18" Intermediate-Length Gas 6.5 Grendel 1:8 Stainless Steel Barrel w/ Tunable Gas Block
    Out of stock
    $360.99 $390.99 $342.99 $370.99 Save $20.00
  7. Odin Works AR-15 16.1" Mid-Length Gas .223 Wylde 1:8 Black Nitride Stainless Steel Barrel with Tunable Gas Block
    Odin Works AR-15 .223 Wylde 1:8 Stainless Steel Barrel w/ Tunable Gas Block
    Out of stock
    $205.99 $345.99 $194.99 $327.99 Save $18.00
  8. TriggerTech AR-9 Black Competitive Trigger
    TriggerTech AR-9 Black Competitive Trigger
    Out of stock
    $254.99 $240.99 $254.99 Save $14.00
  9. Troy Industries Battlesight Fixed Rear Sight
    Troy Industries Battlesight Fixed Rear Sight
    Out of stock
    $69.99 $66.99 Save $3.00
  10. 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
  11. Aero Precision M4E1 AR-15 Upper Receiver - BLK
    Aero Precision M4E1 AR-15 Upper Receiver
    Out of stock
    $175.99 $190.99 $159.99 $174.99 Save $16.00
  12. Aero Precision EPC-9 AR-15 16" 9mm CMV Upper Receiver w/ ATLAS S-ONE 15" M-LOK Handguard - Black
    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
  13. Aero Precision M4E1 AR-15 16" CMV 5.56 Upper Receiver w/ 15" ATLAS S-ONE M-LOK Handguard - Black
    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
  14. Odin Works AR-15 PCC Billet Upper Receiver
    Odin Works AR-15 PCC Billet Upper Receiver
    Out of stock
    $129.99 $122.99 Save $7.00
  15. Odin Works AR-15 Billet Upper Receiver - Black
    Odin Works AR-15 Billet Upper Receiver
    Out of stock
    $159.99 $179.99 $151.99 $171.99 Save $8.00
  16. Odin Works AR-15 XCH Extended Charging Handle - Black
    Odin Works AR-15 XCH Extended Charging Handle
    Out of stock
    $45.99 $42.99 Save $3.00
  17. Odin Works AR-15 Diverge Charging Handle - Black
    Odin Works AR-15 Diverge Charging Handle
    Out of stock
    $69.99 $65.99 Save $4.00
  18. Odin Works AR-15 / AR-10 Extended Charging Handle Latch - Black
    Odin Works AR-15 / AR-10 Extended Charging Handle Latch
    Out of stock
    $20.99 $19.99 Save $1.00
  19. 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
  20. Aero Precision AR-15 Enhanced Lower Parts Kit
    Aero Precision AR-15 Enhanced Lower Parts Kit
    Out of stock
    $130.99 $114.99 Save $16.00
  21. Aero Precision AR.750 Low Pro Gas Block w/ Aero Logo
    Aero Precision AR.750 Low Pro Gas Block w/ Aero Logo
    Out of stock
    $40.99 $35.99 Save $5.00
  22. CMMG AR-15 Fastback Receiver Extension
    CMMG AR-15 Fastback Receiver Extension
    Out of stock
    $59.99 $45.99 Save $14.00
  23. CMMG AR-15 6.5 Grendel / 6mm ARC Bolt Carrier Group
    CMMG AR-15 6.5 Grendel / 6mm ARC Bolt Carrier Group
    Out of stock
    $174.99 $158.99 Save $16.00
  24. CMMG AR-15 Front Sight Base Assembly
    CMMG AR-15 Front Sight Base Assembly
    Out of stock
    $49.99 $42.99 Save $7.00
  25. Aero Precision AR Fire Control Group Kit
    Aero Precision AR Fire Control Group Kit
    Out of stock
    $45.99 $40.99 Save $5.00
  26. Timney Competition Single-Stage 4.5LB Small Pin AR-10 / AR-15 Trigger
    Timney Competition Single-Stage 4.5LB Small Pin AR-10 / AR-15 Trigger
    Out of stock
    $234.99 $293.99 $210.99 $269.99 Save $24.00