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    1/2x28
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  2. W/O BCG & CH 4 items
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Inventory
  1. In Stock 13 items
  2. Out of Stock 13 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. Battle Arms Development WORKHORSE Mod C AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    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
  3. Battle Arms Development Authority Elite AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    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
  4. FightLite MCR Dual-Feed AR-15 16.25" Assembled Upper Receiver
    FightLite MCR Dual-Feed AR-15 16.25" Assembled Upper Receiver
    Out of stock
    $6,399.99 $5,899.99 Save $500.00
  5. CMMG BANSHEE AR-15 5" CM 5.7x28 Upper Receiver w/ EML4 4" M-LOK Handguard
    CMMG BANSHEE AR-15 5" CM 5.7x28 Upper Receiver w/ EML4 4" M-LOK Handguard
    $899.99 $749.99 $834.99 Save $150.00
  6. CMMG BANSHEE Mk4 AR-15 4.5" CM .22 LR Upper Receiver w/ EML4 4" M-LOK Handguard
    CMMG BANSHEE Mk4 AR-15 4.5" CM .22 LR Upper Receiver w/ EML4 4" M-LOK Handguard
    $724.99 $589.99 $637.99 Save $135.00
  8. Battle Arms Development WORKHORSE AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    Battle Arms Development WORKHORSE AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard
    $724.99 $692.99 Save $32.00
  10. 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
  12. Faxon ARAK-21 AR-15 5.56 NATO Upper Receiver w/ Picatinny Handguard
    Faxon ARAK-21 AR-15 5.56 NATO Upper Receiver w/ Picatinny Handguard
    $999.99 $920.99 Save $79.00
  15. 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
  17. 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
  18. 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
  23. CMMG BANSHEE AR-15 8" CM 5.7x28 Upper Receiver w/ EML7 7" M-LOK Handguard
    CMMG BANSHEE AR-15 8" CM 5.7x28 Upper Receiver w/ EML7 7" M-LOK Handguard
    Out of stock
    $924.99 $804.99 $834.99 Save $120.00
  26. CMMG BANSHEE Mk4 AR-15 9" CM .22 LR Upper Receiver w/ EML7 7" M-LOK Handguard
    CMMG BANSHEE Mk4 AR-15 9" CM .22 LR Upper Receiver w/ EML7 7" M-LOK Handguard
    Out of stock
    $749.99 $589.99 $637.99 Save $160.00
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