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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LanTac USA LLC SF15 Reacon Complete Upper Receiver 223 Wylde 16" Barrel Fits AR15 AFALSEdized Finish Black 01-FA-223-RECON-
Vendor:Lantac USARegular price $1,364.28 USDRegular price$1,599.50 USDSale price $1,364.28 USDSale -
HM Defense 16MBUP-556-L Upper Fits AR-15 223REM/556NATO 16" MOFALSEBLOC Barrel Midlength Gas System with Integral Gas Block
Vendor:HallmarkRegular price $929.86 USDRegular price$1,090.18 USDSale price $929.86 USDSale -
HM Defense 16MBUP-556 Upper Fits AR-15 223REM/556NATO 16" MOFALSEBLOC Barrel Midlength Gas System with Inegral Gas Block 1:
Vendor:HallmarkRegular price $862.37 USDRegular price$1,011.06 USDSale price $862.37 USDSale -
Geissele Automatics Super Duty Mod1 Complete Upper Receiver 556nato 16" Barrel 1:7 Twist Huxwrx Flash Hider-qd 556 15" S
Vendor:Geissele AutomaticsRegular price $1,773.73 USDRegular price$2,079.54 USDSale price $1,773.73 USDSale -
Diamondback Firearms Barrels 6.5 Grendel 18" 1:8 Twist Black Nitride Finish Mid Length Gas System Threaded 5/8-24" Fits
Vendor:Diamondback FirearmsRegular price $156.60 USDRegular price$183.60 USDSale price $156.60 USDSale -
Diamondback Firearms Barrel 223 Remington/556nato 16" 1:8 Twist Black Nitride Finish Mid Length Gas System Threaded 1/2-
Vendor:Diamondback FirearmsRegular price $118.90 USDRegular price$139.40 USDSale price $118.90 USDSale -
Diamondback Firearms Barrel 308 Winchester 16" 1:10 Twist Black Nitride Finish Rifle Length Gas System Threaded 5/8-24"
Vendor:Diamondback FirearmsRegular price $158.05 USDRegular price$185.30 USDSale price $158.05 USDSale -
Diamondback Firearms Barrel 308 Winchester 16" 1:10 Twist Black Nitride Finish Mid Length Gas System Threaded 5/8-24" Fi
Vendor:Diamondback FirearmsRegular price $165.30 USDRegular price$193.80 USDSale price $165.30 USDSale -
CMMG 57BBCF0Ab Banshee 5.7X28mm 5", Armor Black, M-Lok Free-Float Handgaurd For AR-Platform
Vendor:CMMG, IncRegular price $1,009.27 USDRegular price$1,183.29 USDSale price $1,009.27 USDSale -
Ballistic Advantage Premium Series 9mm 4.5" Threaded Barrel 1/2x28 For Glock 19 Gen 3-5 Qpq Corrosion Resistant Black Ba
Vendor:Ballistic AdvantageRegular price $128.19 USDRegular price$150.30 USDSale price $128.19 USDSale -
Ballistic Advantage Premium Black Series Barrel 6.5 Creedmoor 18" 1:8
Vendor:Ballistic AdvantageRegular price $267.24 USDRegular price$313.31 USDSale price $267.24 USDSale -
Ballistic Advantage Premium Black Series Barrel 6.5 Creedmoor 16" 1:8
Vendor:Ballistic AdvantageRegular price $264.78 USDRegular price$310.44 USDSale price $264.78 USDSale -
Ballistic Advantage Barrel 6.5 CREEDMOOR 18" 1:8 Twist Stainless Steel .875 Gas Block BABL65CR01P
Vendor:Ballistic AdvantageRegular price $262.16 USDRegular price$307.36 USDSale price $262.16 USDSale -
Ballistic Advantage Modern Barrel 5.56 NATO 12.5" 1:7 Twist Car Gov BABL556024M
Vendor:Ballistic AdvantageRegular price $129.83 USDRegular price$152.22 USDSale price $129.83 USDSale -
Ballistic Advantage Modern Barrel 5.56 NATO 18" 1:7 Twist SPR Rifle w/ Ops 12 BABL556020M
Vendor:Ballistic AdvantageRegular price $174.41 USDRegular price$204.48 USDSale price $174.41 USDSale -
Ballistic Advantage HBAR M4 Barrel 556NATO 16" 1:7 Bead Blasted
Vendor:Ballistic AdvantageRegular price $140.40 USDRegular price$164.61 USDSale price $140.40 USDSale -
Ballistic Advantage Modern Barrel 5.56 NATO 16" 1:7 Twist 4150 CrMoV Mid Gov BABL556015M
Vendor:Ballistic AdvantageRegular price $140.40 USDRegular price$164.61 USDSale price $140.40 USDSale -
Ballistic Advantage Modern M4 Barrel 5.56 NATO 16" 1:7 Twist BABL556014M
Vendor:Ballistic AdvantageRegular price $140.27 USDRegular price$164.46 USDSale price $140.27 USDSale -
Ballistic Advantae Performance Barrel, 556NATO, 16", 1:7 Twist, Hanson Mid w/Low Profile Gas Block
Vendor:Ballistic AdvantageRegular price $232.13 USDRegular price$272.15 USDSale price $232.13 USDSale -
Ballistic Advantage Premium Black Series Barrel 308 Winchester 18" Matte
Vendor:Ballistic AdvantageRegular price $267.24 USDRegular price$313.31 USDSale price $267.24 USDSale -
Ballistic Advantage Premium Black Series 308 Winchester 20" Barrel Finish Fits AR10
Vendor:Ballistic AdvantageRegular price $257.36 USDRegular price$301.73 USDSale price $257.36 USDSale -
Ballistic Advantage Premium Black Series 308 Winchester 18" Barrel Finish Fits AR10
Vendor:Ballistic AdvantageRegular price $256.81 USDRegular price$301.09 USDSale price $256.81 USDSale -
Ballistic Advantage Modern Series AR-10 Heavy Profile Rifle Barrel 18" .308 Winchester 1:10 Twist
Vendor:Ballistic AdvantageRegular price $208.67 USDRegular price$244.65 USDSale price $208.67 USDSale -
Ballistic Advantage AR-10 Modern Series Rifle Barrel .308 Win 20" Length 5/8x24 Thread HBAR Contour Nitride
Vendor:Ballistic AdvantageRegular price $208.97 USDRegular price$245.00 USDSale price $208.97 USDSale -
Ballistic Advantage Modern Barrel 308 Win 18" Mid-Length Gas System Tactical Government Profile 1:10 Twist BABL308005M
Vendor:Ballistic AdvantageRegular price $208.67 USDRegular price$244.65 USDSale price $208.67 USDSale -
Ballistic Advantage Modern Series 308 Winchester 16"
Vendor:Ballistic AdvantageRegular price $170.87 USDRegular price$200.33 USDSale price $170.87 USDSale -
Ballistic Advantage Premium Black Series Barrel 22 ARC 16" 1:7 Twist Mid Length Gas System QPQ Corrosion Resistant Finis
Vendor:Ballistic AdvantageRegular price $264.41 USDRegular price$310.00 USDSale price $264.41 USDSale -
Ballistic Advantage Premium Barrel 223WYlDE 18" 1:7 SPR Rifle With Ops 12 Profile
Vendor:Ballistic AdvantageRegular price $216.08 USDRegular price$253.33 USDSale price $216.08 USDSale -
Ballistic Advantage Premium Barrel .223 WYLDE 16" 1:8 Twist Hanson Mid w/Low Profile Gas Block Stainless Steel BABL22301
Vendor:Ballistic AdvantageRegular price $226.82 USDRegular price$265.93 USDSale price $226.82 USDSale -
B5 Systems Rail Covers 4 Pack Fits M-LOK Rails Matte Olive Drab Green
Vendor:B5 SystemsRegular price $17.75 USDRegular price$20.81 USDSale price $17.75 USDSale -
B5 Systems Rail Covers 4 Pack Fits M-LOK Rails Matte Flat Dark Earth
Vendor:B5 SystemsRegular price $17.75 USDRegular price$20.81 USDSale price $17.75 USDSale -
Cmmg 28b940cmb Dissent 22 Arc 16.10" 6061-t6 Aluminum
Vendor:CMMG, IncRegular price $1,599.79 USDRegular price$1,875.61 USDSale price $1,599.79 USDSale -
Fightlite Industries MCR AR-15 Belt-Feed Upper Receiver Auto 16.25''
Vendor:Fightlite IndustriesRegular price $7,249.99 USDRegular price$8,499.98 USDSale price $7,249.99 USDSale -
Cmmg 30bc40aab Resolute Mk4 300 Blackout 16.10", Armor Black, M-lok Free-float Handguard For Ar-platform (FALSE Bcg Or Char
Vendor:CMMG, IncRegular price $584.23 USDRegular price$684.96 USDSale price $584.23 USDSale -
FN FN15 Upper Assembly 16" Carbine Md: 36426
Vendor:FN AmericaRegular price $1,112.79 USDRegular price$1,304.65 USDSale price $1,112.79 USDSale -
Angstadt Arms 6 in 9mm Luger Complete Upper Assembly with BCG - Surpressor Ready
Vendor:Angstadt ArmsRegular price $651.05 USDRegular price$763.30 USDSale price $651.05 USDSale