Welcome to Mid State Firearms.

Mid State Firearms specializes in offering top quality Ar15 Upper Receivers, parts, and accessories for sale. We also work to provide you with the best prices on anything you need for home or self defense. Whether you need a fun range toy, or a defense weapon to protect your family, we are here to help.  Be sure to browse all of our items and options to customize your upper for your needs.

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    1 - 60 of 310 items
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    *Rifle Build Kit* 16" Ar15 5.56/.223 1:7 blem w/ 10" Free Float *Rifle BuildKit* 16" Slant Keymod Ar15 5.56 Nato SS Mid 1:8 blem *sale* Ar15 Lower Build Kit - Mil Spec 6 Position Stock & LPK
    *Rifle Build Kit* 16" Ar15 5.56/.223 1:7 blem w/ 10" Free Float*Rifle BuildKit* 16" Slant Keymod Ar15 5.56 Nato SS Mid 1:8 blem*sale* Ar15 Lower Build Kit - Mil Spec 6 Position Stock & LPK

    $529.99

    $299.99

    $599.99

    $479.00

    $149.00

    $89.00

     
    *sale* Ar15 Standard Mil Spec Lower Parts Kit LPK 14.7" Cold Hammer Forged CHF 5.56 Nato 1:7 MidLength Ar15 Barrel 16" 1:7 5.56/223 Wylde blem AR15 Upper w/ BCG & Charging Handle
    *sale* Ar15 Standard Mil Spec Lower Parts Kit LPK14.7" Cold Hammer Forged CHF 5.56 Nato 1:7 MidLength Ar15 Barrel16" 1:7 5.56/223 Wylde blem AR15 Upper w/ BCG & Charging Handle

    $59.99

    $44.99

    $299.00

    $99.00

    $379.99

    $249.99

     
    16" Blem 1:7 5.56/223 Wylde AR15 Upper with 10" Free Float 16" MSF Specter .223 Wylde Ar15 Upper with 12" Gen3 Slim Rail 16" SS Blem 5.56 Nato 1:8 Mid length Ar15 Upper with 15" Rail
    16" Blem 1:7 5.56/223 Wylde AR15 Upper with 10" Free Float 16" MSF Specter .223 Wylde Ar15 Upper with 12" Gen3 Slim Rail16" SS Blem 5.56 Nato 1:8 Mid length Ar15 Upper with 15" Rail

    $379.99

    $159.99

    $529.99

    $279.99

    (25)

    $289.00

    $159.00

     
    18" SS Blem 223 Wylde 1:8 Mid length Ar15 Upper with 15" Rail 20" CHF 5.56 Nato 1:7 Melonite Ar15 Rifle Upper, c15 Rail 224 Valkyrie - 18" Stainless 416r 1:7 Ar15 Barrel
    18" SS Blem 223 Wylde 1:8 Mid length Ar15 Upper with 15" Rail20" CHF 5.56 Nato 1:7 Melonite Ar15 Rifle Upper, c15 Rail 224 Valkyrie - 18" Stainless 416r 1:7 Ar15 Barrel

    $289.00

    $159.00

    $499.00

    $349.00

    $249.00

    $209.00

     
    224 Valkyrie 22" 1:7 416r .224 SS Spiral Flute Ar15 Barrel 224 Valkyrie Ar15 18" SS Upper with F15 Keymod Rail 6" Ar9 SS 9mm Ar15 Upper with Flash Can & Slant Keymod
    224 Valkyrie 22" 1:7 416r .224 SS Spiral Flute Ar15 Barrel 224 Valkyrie Ar15 18" SS Upper with F15 Keymod Rail6" Ar9 SS 9mm Ar15 Upper with Flash Can & Slant Keymod

    $279.00

    $209.00

    $449.00

    $349.00

    $349.00

    $249.00

     
    Aero Precision M5 .308 Assembled Upper Receiver - Anodized Black Ar15 Oilslick Stormbreaker Tactical Unicorn Builder Set - *FFL* Blem 20" CHF 5.56 Nato 1:7 Melonite Ar15 Upper, with BCG & CH
    Aero Precision M5 .308 Assembled Upper Receiver - Anodized BlackAr15 Oilslick Stormbreaker Tactical Unicorn Builder Set - *FFL*Blem 20" CHF 5.56 Nato 1:7 Melonite Ar15 Upper, with BCG & CH

    $155.00

    $131.75

    $649.00

    $599.00

    $499.00

    $349.00

     
    ToolCraft Melonite / Black Nitride M16 Bolt Carrier Group 18" 1:8 SS Fluted 5.56/223 MLok Upper, Nickel Boron BCG & CH 20" 1:8 5r SS Fluted 223 Wylde MLok Upper, Nickel Boron BCG & CH
    ToolCraft Melonite / Black Nitride M16 Bolt Carrier Group18" 1:8 SS Fluted 5.56/223 MLok Upper, Nickel Boron BCG & CH20" 1:8 5r SS Fluted 223 Wylde MLok Upper, Nickel Boron BCG & CH

    $189.00

    $79.00

    $699.99

    $499.99

    (4)

    $799.99

    $499.99

     
    16" Stainless .223 Wylde 1:8 Ar15 Upper w/ C15 Slim Keymod Rail 20" 1:8 5r SS Fluted 5.56 MLok Upper, Nickel Boron BCG & CH *PREMIUM Rifle Build Kit* 3lb Trigger with Slim Rail & NiBo BCG
    16" Stainless .223 Wylde 1:8 Ar15 Upper w/ C15 Slim Keymod Rail20" 1:8 5r SS Fluted 5.56 MLok Upper, Nickel Boron BCG & CH*PREMIUM Rifle Build Kit* 3lb Trigger with Slim Rail & NiBo BCG

    $399.00

    $279.00

    (4)

    $799.99

    $499.99

    $699.99

    $574.99

     
    20" 416r Stainless Fluted 5.56/223 Wylde 1:8 5r MLok Upper Custom Assembled Oilslick Ar15 Upper - You pick options OilSlick Ar15 Bolt Carrier Group m16 BCG *Choose Your Caliber!*
    20" 416r Stainless Fluted 5.56/223 Wylde 1:8 5r MLok UpperCustom Assembled Oilslick Ar15 Upper - You pick optionsOilSlick Ar15 Bolt Carrier Group m16 BCG *Choose Your Caliber!*

    $799.99

    $349.99

    $599.00

    $499.00

    $249.00

    $179.00

     
    10.5" 4150 9mm ar15 upper, c13 keymod, flash can, bcg, ambi ch 16" SS .223 Wylde 1:8 AR15 Upper with c12 M-Lok Rail *Rifle Build Kit* 16" SS Ar15 5.56/.223 1:8 mid w/ c12 Mlok Rail
    10.5" 4150 9mm ar15 upper, c13 keymod, flash can, bcg, ambi ch 16" SS .223 Wylde 1:8 AR15 Upper with c12 M-Lok Rail*Rifle Build Kit* 16" SS Ar15 5.56/.223 1:8 mid w/ c12 Mlok Rail

    $499.00

    $399.00

    $379.99

    $279.99

    $599.99

    $399.00

     
    *Rifle Build Kit* 18" Ar15 5.56/.223 Wylde 1:8 mid w/ c12 Mlok *Rifle Build Kit* blem 16" 4150 Ar15 1:7 223 Wylde, 10" mlok *Rifle Build Kit* blem 16" SS Ar15 5.56 1:8 mid, 12" mlok Rail
    *Rifle Build Kit* 18" Ar15 5.56/.223 Wylde 1:8 mid w/ c12 Mlok *Rifle Build Kit* blem 16" 4150 Ar15 1:7 223 Wylde, 10" mlok *Rifle Build Kit* blem 16" SS Ar15 5.56 1:8 mid, 12" mlok Rail

    $599.99

    $399.00

    $599.99

    $399.00

    $599.99

    $399.00

     
    10.5" SS 9mm ar15 upper, c13 keymod, flash can, bcg, ambi ch 16" SS blem Mid Length 5.56 Nato 1:8 AR15 Upper with c12 M-Lok 18" 1:8 5.56/223 Wylde Ar15 Upper with c12 Mlok
    10.5" SS 9mm ar15 upper, c13 keymod, flash can, bcg, ambi ch 16" SS blem Mid Length 5.56 Nato 1:8 AR15 Upper with c12 M-Lok18" 1:8 5.56/223 Wylde Ar15 Upper with c12 Mlok

    $499.00

    $399.00

    $379.99

    $229.99

    $479.99

    $329.99

     
    7.5 Blem 5.56/223 Ar15 Upper w/ M-Lok, BCG & Charging Handle 7.5" Blem 5.56/223 Ar15 Pistol Upper w/ M-Lok Handguard Oilslick Rainbow PVD Competition Muzzle Brake SS 1/2-28 223s
    7.5 Blem 5.56/223 Ar15 Upper w/ M-Lok, BCG & Charging Handle7.5" Blem 5.56/223 Ar15 Pistol Upper w/ M-Lok HandguardOilslick Rainbow PVD Competition Muzzle Brake SS 1/2-28 223s

    $419.00

    $299.00

    $419.00

    $229.00

    $59.99

     
    Oilslick Rainbow PVD Threaded Glock 17 G17 9mm Barrel 1/2-28 Oilslick Rainbow PVD Threaded Glock 19 G19 9mm Barrel 1/2-28 SALE! *blem* m4 Stripped upper with dust cover & fwd assist kit
    Oilslick Rainbow PVD Threaded Glock 17 G17 9mm Barrel 1/2-28Oilslick Rainbow PVD Threaded Glock 19 G19 9mm Barrel 1/2-28SALE! *blem* m4 Stripped upper with dust cover & fwd assist kit

    $229.00

    $149.00

    $229.00

    $149.00

    $99.99

    $49.50

     
    SALE! *blem* m4 Stripped upper, Ambi Latch Handle & Parts Kit SALE! *blem* Mil Spec Ar15 Stripped Upper Receiver, Limit 3 Stainless Threaded Glock 17 G17 9mm Barrel , 1/2-28 threads
    SALE! *blem* m4 Stripped upper, Ambi Latch Handle & Parts KitSALE! *blem* Mil Spec Ar15 Stripped Upper Receiver, Limit 3Stainless Threaded Glock 17 G17 9mm Barrel , 1/2-28 threads

    $99.99

    $64.99

    $79.99

    $43.89

    (1)

    $179.00

    $99.00

     
    Oilslick Rainbow PVD Competition Muzzle Brake SS 1/2-28 223 Diamond Fluted Rainbow PVD Oilslick .223 Wylde 416r Ar15 Barrel M-Lok Blem 16" 223 Wylde 1:7 AR15 Upper w/ BCG & Charging Handle
    Oilslick Rainbow PVD Competition Muzzle Brake SS 1/2-28 223Diamond Fluted Rainbow PVD Oilslick .223 Wylde 416r Ar15 BarrelM-Lok Blem 16" 223 Wylde 1:7 AR15 Upper w/ BCG & Charging Handle

    $59.99

    $299.00

    $249.00

    $379.99

    $299.99

    (1)
     
    16" SS blem Mid Length 5.56 Nato 1:8 AR15 Upper with 12" M-Lok Engraved Dust Cover - Ejection Port Cover CUSTOM Engraved Ar15 Ejection Port / Dust Cover
    16" SS blem Mid Length 5.56 Nato 1:8 AR15 Upper with 12" M-LokEngraved Dust Cover - Ejection Port CoverCUSTOM Engraved Ar15 Ejection Port / Dust Cover

    $379.99

    $229.99

    $35.00

    $24.99

    $35.00

    $24.99

     
    MSF 16" 5.56/223 Wylde 1:8 Ar15 Upper, slim Mlok or Keymod Rail Velocity 3lb Enhanced AR-15 Lower Parts Kit LPK w/ AntiWalk Pins MSF 16" 5.56/223 1:8 Ar15 Upper with slim 15" M-Lok Rail
    MSF 16" 5.56/223 Wylde 1:8 Ar15 Upper, slim Mlok or Keymod RailVelocity 3lb Enhanced AR-15 Lower Parts Kit LPK w/ AntiWalk PinsMSF 16" 5.56/223 1:8 Ar15 Upper with slim 15" M-Lok Rail

    $429.00

    $279.00

    (1)

    $209.99

    $149.99

    $429.00

    $279.00

     
    16" SS Midlenth 5.56 Nato 1:8 Ar15 Upper w/ C15 Slim Keymod Rail 16" SS MidLength 556 Nato 1:8 Ar15 Upper w/ V15 Slim Keymod Rail 16" SS Mid Length 5.56 Nato 1:8 Ar15 Upper w/ F15 Slim Keymod
    16" SS Midlenth 5.56 Nato 1:8 Ar15 Upper w/ C15 Slim Keymod Rail16" SS MidLength 556 Nato 1:8 Ar15 Upper w/ V15 Slim Keymod Rail16" SS Mid Length 5.56 Nato 1:8 Ar15 Upper w/ F15 Slim Keymod

    $399.00

    $279.00

    $399.00

    $279.00

    $399.00

    $279.00

     
    14.5" MSF Specter .223 Wylde Ar15 Upper with pin/weld brake Blem 16" 5.56/223 Wylde AR15 Complete Upper with 15" Keymod Rail 16" .458 Socom Ar15 Hbar Upper Receiver
    14.5" MSF Specter .223 Wylde Ar15 Upper with pin/weld brake Blem 16" 5.56/223 Wylde AR15 Complete Upper with 15" Keymod Rail16" .458 Socom Ar15 Hbar Upper Receiver

    $529.99

    $329.99

    $509.99

    $399.99

    $589.99

    $389.99

     
    1 - 60 of 310 items
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