Collection: Gun Parts for Sale – Rifle & Handgun Components, Upgrades & Accessories
Maintain, repair, or upgrade your firearm with high-quality gun parts built for reliability and performance. At Western Gun Store, we offer a wide selection of firearm components for rifles, handguns, and shotguns—designed to keep your equipment running smoothly and performing at its best.
Whether you're replacing worn components, customizing your setup, or building out a platform, our gun parts are engineered for durability, precision fit, and dependable operation. From essential internal components to external upgrades, find the parts you need to keep your firearm in top condition.
Built for shooters who demand performance, our firearm parts deliver the reliability you can count on in the field, at the range, or in critical situations.
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Car-15/M4 9MM Carbine Buffer
Vendor:Rock River ArmsRegular price $56.25 USDRegular price$65.94 USDSale price $56.25 USDSale -
AR-15 Star Safety Selector
Vendor:Rock River ArmsRegular price $20.33 USDRegular price$23.83 USDSale price $20.33 USDSale -
SaleAR-15 Carbine Buffer
Vendor:Rock River ArmsRegular price $28.41 USDRegular price$33.30 USDSale price $28.41 USDSale -
Carbine Length Recoil Spring
Vendor:Rock River ArmsRegular price $5.23 USDRegular price$6.14 USDSale price $5.23 USDSale -
AR-15 Gas Block Low Profile
Vendor:Midwest IndustriesRegular price $55.09 USDRegular price$64.58 USDSale price $55.09 USDSale -
AR-15 Micro Gas BLOCKS
Vendor:Midwest IndustriesRegular price $50.88 USDRegular price$59.65 USDSale price $50.88 USDSale -
AR-15 CQB Stock REPLACMENT BUFFERS & SPRINGS
Vendor:Maxim Defense IndustriesRegular price $49.58 USDRegular price$58.12 USDSale price $49.58 USDSale -
AR-15/308 6-Position Mil-Spec Carbine Buffer Tube
Vendor:Luth-ARRegular price $25.00 USDRegular price$29.31 USDSale price $25.00 USDSale -
AR-15 Magazine Catch Button Aluminum
Vendor:Luth-ARRegular price $1.42 USDRegular price$1.67 USDSale price $1.42 USDSale -
AR-15/308 6-Position Commercial Carbine Buffer Tube
Vendor:Luth-ARRegular price $20.56 USDRegular price$24.11 USDSale price $20.56 USDSale -
AR-15 Commercial Carbine Buffer Assembly Package
Vendor:Luth-ARRegular price $40.19 USDRegular price$47.12 USDSale price $40.19 USDSale -
AR-15 ARIC Internal CARRIERS
Vendor:Law Tactical LLCRegular price $535.85 USDRegular price$628.24 USDSale price $535.85 USDSale -
K-Spec M16 6.5MM Grendel Type 2 Bolt Carrier Group
Vendor:KAK IndustryRegular price $190.11 USDRegular price$222.89 USDSale price $190.11 USDSale -
K-Spec M16 5.56 Nato Bolt Carrier Group W/Side Vent
Vendor:KAK IndustryRegular price $190.11 USDRegular price$222.89 USDSale price $190.11 USDSale -
Enhanced Carbine Buttstock Lock Plate W/QD Attachment
Vendor:JP EnterprisesRegular price $40.56 USDRegular price$47.55 USDSale price $40.56 USDSale -
J P Enterprises AR-15 Silent Captured Spring Conversion Kit For Law Folding Adapter
Vendor:JP EnterprisesRegular price $121.74 USDRegular price$142.73 USDSale price $121.74 USDSale -
AR-15 Adjustable/Reversible/Ambidextrous Safety Selector
Vendor:JP EnterprisesRegular price $87.42 USDRegular price$102.49 USDSale price $87.42 USDSale -
AR-15 Buffer Retainer Stainless Steel
Vendor:Forward Controls Design LlcRegular price $9.29 USDRegular price$10.90 USDSale price $9.29 USDSale -
AR-15 End Plate W/ 3-QD Sling Swivel SOCKETS Steel
Vendor:Forward Controls Design LlcRegular price $78.11 USDRegular price$91.58 USDSale price $78.11 USDSale -
AR-15/M4 Receiver Extension
Vendor:Forward Controls Design LlcRegular price $91.61 USDRegular price$107.41 USDSale price $91.61 USDSale -
SaleCam Pin By SOTAR
Vendor:Forward Controls Design LlcRegular price $21.08 USDRegular price$24.72 USDSale price $21.08 USDSale -
AR-15 7.62X39 Type 1 Bolt Carrier Group Black
Vendor:Faxon FirearmsRegular price $172.80 USDRegular price$202.59 USDSale price $172.80 USDSale -
AR-15 6.8/.224 Valkyrie Bolt Carrier Group Black
Vendor:Faxon FirearmsRegular price $172.80 USDRegular price$202.59 USDSale price $172.80 USDSale -
Double Star AR-15 Gas Tube Pistol 6 3/4" Stainless Steel
Vendor:Double StarRegular price $16.63 USDRegular price$19.50 USDSale price $16.63 USDSale -
AR15A4 Bolt Catch Pin
Vendor:ColtRegular price $2.86 USDRegular price$3.35 USDSale price $2.86 USDSale -
AR15A4 Buffer Assembly
Vendor:ColtRegular price $58.71 USDRegular price$68.83 USDSale price $58.71 USDSale -
Zeroed AR-15 Bolt Catch Kit
Vendor:CMMG, IncRegular price $18.21 USDRegular price$21.35 USDSale price $18.21 USDSale -
AR-15 Extractor O-Ring
Vendor:CMMG, IncRegular price $2.04 USDRegular price$2.40 USDSale price $2.04 USDSale -
AR-15 Magazine Catch Ambidextrous
Vendor:CMMG, IncRegular price $36.67 USDRegular price$42.99 USDSale price $36.67 USDSale -
AR-15 Buffer Retainer
Vendor:CMMG, IncRegular price $2.58 USDRegular price$3.03 USDSale price $2.58 USDSale -
AR-15 Bolt Catch Plunger
Vendor:CMMG, IncRegular price $2.04 USDRegular price$2.40 USDSale price $2.04 USDSale -
SaleAR-15 Bolt Catch
Vendor:CMMG, IncRegular price $9.44 USDRegular price$11.07 USDSale price $9.44 USDSale -
AR-15 Bolt Catch Spring
Vendor:CMMG, IncRegular price $1.45 USDRegular price$1.70 USDSale price $1.45 USDSale -
AR-15 Ejection Port Cover SPING
Vendor:CMMG, IncRegular price $1.52 USDRegular price$1.79 USDSale price $1.52 USDSale -
AR-15 Buffer Retainer
Vendor:BrownellsRegular price $3.76 USDRegular price$4.40 USDSale price $3.76 USDSale -
AR-15 Buffer Retainer Spring
Vendor:BrownellsRegular price $2.81 USDRegular price$3.30 USDSale price $2.81 USDSale