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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TacFire AR-15 .223 / 5.56 Unassembled Pistol Kit w/ Lower Parts Kit$399.99 $279.99 $349.99 Save $120.00 -
CMMG DISSENT Mk4 AR-15 10.5" CM 5.56MM Upper Receiver w/ 9.6" M-LOK Handguard$1,349.99 $1,399.99 $1,024.99 $1,035.99 Save $364.00 -
Daniel Defense M4A1 FSP AR-15 14.5" Pinned CMV 5.56 Upper Receiver w/ RIS II Handguard$1,751.99 $1,629.99 Save $122.00 -
Ballistic Advantage Performance AR-15 16" Carbine-Length Gas .350 Legend 1:16 CMV Barrel w/ Lo Pro Gas Block$221.99 $184.99 Save $37.00 -
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 -
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Odin Works DMR AR-15 18" Rifle Length Gas .223 Wylde 1:8 Stainless Steel Barrel with Tunable Gas Block$330.99 $313.99 Save $17.00 -
Angstadt Arms AR-15 6" 9mm Assembled Upper Receiver w/ M-LOK 5.5" Handguard$599.99 $539.99 Save $60.00 -
CMMG Resolute Mk4 16.1" .350 Legend Assembled Upper Receiver w/ M-LOK Handguard$949.99 $856.99 Save $93.00 -
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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 -
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 -
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 -
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 -
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 -
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Faxon Firearms Match Series AR-15 Rifle-Length Gas 22 ARC 1:7 Stainless Steel Barrel$236.99 $310.99 $218.99 $286.99 Save $24.00 -
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Faxon Firearms Duty Series AR-15 Carbine-Length 5.56 NATO 1:7 Chrome Lined 4150 CMV Barrel$238.99 $242.99 $219.99 $223.99 Save $19.00 -
Faxon Firearms Match Series AR-15 .223 Wylde Bead-Blasted SS Barrel$267.99 $272.99 $246.99 $251.99 Save $21.00 -
Faxon Firearms Match Series AR-15 22" Rifle-Length Gas .22 ARC 1:7 Bead-Blasted SS Barrel$271.99 $250.99 Save $21.00 -
TacFire AR-15 16" .300 Blackout Unassembled Rifle Kit w/ Lower Parts Kit$429.99 $339.99 Save $90.00 -
Rosco Purebred AR-15 16" Mid-Length Gas 223 Wylde 1:8 Stainless Steel Barrel w/ Bolt Carrier Group$406.99 $365.99 Save $41.00 -
CMMG DISSENT Mk4 AR-15 6.5" CM 9MM Upper Receiver w/ 5.5" M-LOK Handguard-Armor Black$1,349.99 $1,099.99 Save $250.00 -
Faxon Firearms Duty Series AR-15 16" Mid-Length Gas .223 Wylde 1:8 Stainless Steel Barrel$240.99 $221.99 Save $19.00 -
Faxon Firearms Duty Series AR-15 16" Mid-Length Gas 5.56 NATO 1:8 4150 Steel Threaded Pencil Profile Barrel$187.99 $173.99 Save $14.00 -
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 -
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 -
Battle Arms Development WORKHORSE Mod C AR-15 16" CMV 5.56 Upper Receiver w/ 15" M-LOK Handguard$692.99 $659.99 Save $33.00 -
Daniel Defense DDM4V7 AR-15 16" CMV 5.56 Upper Receiver w/ MFR 15" Picatinny Handguard$1,339.99 $1,281.99 Save $58.00
