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 291 items
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    10.5" 4150 9mm ar15 upper, c13 keymod, flash can, bcg, ambi ch 18" 1:8 SS Fluted 5.56/223 MLok Upper, Nickel Boron BCG & CH 20" 1:8 5r SS Fluted 5.56/223 MLok Upper, Nickel Boron BCG & CH
    10.5" 4150 9mm ar15 upper, c13 keymod, flash can, bcg, ambi ch 18" 1:8 SS Fluted 5.56/223 MLok Upper, Nickel Boron BCG & CH20" 1:8 5r SS Fluted 5.56/223 MLok Upper, Nickel Boron BCG & CH

    $499.00

    $299.00

    $699.99

    $499.99

    (3)

    $799.99

    $499.99

     
    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

     
    16" MSF Specter .223 Wylde Ar15 Upper with 12" Gen3 Slim Rail 16" Stainless .223 Wylde 1:8 Ar15 Upper w/ C15 Slim Keymod Rail *PREMIUM Rifle Build Kit* 3lb Trigger with Slim Rail & NiBo BCG
    16" MSF Specter .223 Wylde Ar15 Upper with 12" Gen3 Slim Rail16" Stainless .223 Wylde 1:8 Ar15 Upper w/ C15 Slim Keymod Rail*PREMIUM Rifle Build Kit* 3lb Trigger with Slim Rail & NiBo BCG

    $529.99

    $279.99

    (25)

    $399.00

    $279.00

    (4)

    $699.99

    $574.99

     
    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 *Rifle Build Kit* 18"  Ar15 5.56/.223 Wylde 1:8 mid w/ c12 Mlok
    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*Rifle Build Kit* 18" Ar15 5.56/.223 Wylde 1:8 mid w/ c12 Mlok

    $379.99

    $279.99

    $599.99

    $349.99

    $599.99

    $399.00

     
    *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 10.5" SS 9mm ar15 upper, c13 keymod, flash can, bcg, ambi ch
    *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 Rail10.5" SS 9mm ar15 upper, c13 keymod, flash can, bcg, ambi ch

    $599.99

    $299.99

    $599.99

    $349.99

    $499.00

    $399.00

     
    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 7.5 Blem 5.56/223 Ar15 Upper w/ M-Lok, BCG & Charging Handle
    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 Mlok7.5 Blem 5.56/223 Ar15 Upper w/ M-Lok, BCG & Charging Handle

    $379.99

    $229.99

    $479.99

    $279.00

    $419.00

    $299.00

     
    7.5" Blem 5.56/223 Ar15 Pistol Upper w/ M-Lok Handguard Oilslick Rainbow PVD Competition Muzzle Brake SS 1/2-28 223s Oilslick Rainbow PVD Threaded Glock 17 G17 9mm Barrel 1/2-28
    7.5" Blem 5.56/223 Ar15 Pistol Upper w/ M-Lok HandguardOilslick Rainbow PVD Competition Muzzle Brake SS 1/2-28 223sOilslick Rainbow PVD Threaded Glock 17 G17 9mm Barrel 1/2-28

    $419.00

    $199.00

    $59.99

    $229.00

    $149.00

     
    Oilslick Rainbow PVD Threaded Glock 19 G19 9mm Barrel 1/2-28 SALE! *blem* m4 Stripped upper with dust cover & fwd assist kit SALE! *blem* m4 Stripped upper, Ambi Latch Handle & Parts Kit
    Oilslick Rainbow PVD Threaded Glock 19 G19 9mm Barrel 1/2-28SALE! *blem* m4 Stripped upper with dust cover & fwd assist kitSALE! *blem* m4 Stripped upper, Ambi Latch Handle & Parts Kit

    $229.00

    $149.00

    $99.99

    $49.50

    $99.99

    $64.99

     
    SALE! *blem* Mil Spec Ar15 Stripped Upper Receiver, Limit 3 Stainless Threaded Glock 17 G17 9mm Barrel , 1/2-28 threads Oilslick Rainbow PVD Competition Muzzle Brake SS 1/2-28  223
    SALE! *blem* Mil Spec Ar15 Stripped Upper Receiver, Limit 3Stainless Threaded Glock 17 G17 9mm Barrel , 1/2-28 threadsOilslick Rainbow PVD Competition Muzzle Brake SS 1/2-28 223

    $79.99

    $34.99

    (1)

    $179.00

    $99.00

    $59.99

     
    Diamond Fluted Rainbow PVD Oilslick .223 Wylde 416r Ar15 Barrel M-Lok Blem 16" 223 Wylde 1:7 AR15 Upper w/ BCG & Charging Handle 16" SS blem Mid Length 5.56 Nato 1:8 AR15 Upper with 12" M-Lok
    Diamond Fluted Rainbow PVD Oilslick .223 Wylde 416r Ar15 BarrelM-Lok Blem 16" 223 Wylde 1:7 AR15 Upper w/ BCG & Charging Handle16" SS blem Mid Length 5.56 Nato 1:8 AR15 Upper with 12" M-Lok

    $299.00

    $249.00

    $379.99

    $279.99

    $379.99

    $199.99

     
    Caliber Engraved Ar15 Easy Install Ejection Port / Dust Cover CUSTOM Engraved Ar15 Easy Install Ejection Port / Dust Cover MSF 16" 5.56/223 Wylde 1:8 Ar15 Upper, slim Mlok or Keymod Rail
    Caliber Engraved Ar15 Easy Install Ejection Port / Dust CoverCUSTOM Engraved Ar15 Easy Install Ejection Port / Dust CoverMSF 16" 5.56/223 Wylde 1:8 Ar15 Upper, slim Mlok or Keymod Rail

    $25.00

    $14.99

    $35.00

    $24.99

    $429.00

    $279.00

    (1)
     
    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 16" SS Midlenth 5.56 Nato 1:8 Ar15 Upper w/ C15 Slim Keymod Rail
    Velocity 3lb Enhanced AR-15 Lower Parts Kit LPK w/ AntiWalk PinsMSF 16" 5.56/223 1:8 Ar15 Upper with slim 15" M-Lok Rail16" SS Midlenth 5.56 Nato 1:8 Ar15 Upper w/ C15 Slim Keymod Rail

    $209.99

    $149.99

    $429.00

    $279.00

    $399.00

    $279.00

     
    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 14.5" MSF Specter .223 Wylde Ar15 Upper with pin/weld brake
    16" 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 14.5" MSF Specter .223 Wylde Ar15 Upper with pin/weld brake

    $399.00

    $279.00

    $399.00

    $279.00

    $529.99

    $329.99

     
    Blem 16" 5.56/223 Wylde AR15 Complete Upper with 15" Keymod Rail 16" .458 Socom Ar15 Hbar Upper Receiver Grab Bag 5.56/223 Ar15 Upper with BCG and Charging Handle
    Blem 16" 5.56/223 Wylde AR15 Complete Upper with 15" Keymod Rail16" .458 Socom Ar15 Hbar Upper ReceiverGrab Bag 5.56/223 Ar15 Upper with BCG and Charging Handle

    $509.99

    $329.99

    $589.99

    $389.99

    $499.00

    $349.00

    (1)
     
    M-Lok 16" blem 5.56/223 Wylde AR15 Upper with 10"  Handguard 18" .450 Bushmaster Ar15 Hbar Upper Receiver MSF Blem 16" 5.56/223 Wylde AR15 Upper w/ BCG & Charging Handle
    M-Lok 16" blem 5.56/223 Wylde AR15 Upper with 10" Handguard18" .450 Bushmaster Ar15 Hbar Upper ReceiverMSF Blem 16" 5.56/223 Wylde AR15 Upper w/ BCG & Charging Handle

    $379.99

    $199.99

    $589.99

    $389.99

    $379.99

    $329.99

    (55)
     
    *Rifle Build Kit* SS 16" Slant Keymod Ar15 5.56/.223 w/ 12" Rail MSF PRO Side Charging 18" SS .223 Wylde Fluted Complete Upper 6.5 Grendel Stainless Ar15 Upper with free float handguard
    *Rifle Build Kit* SS 16" Slant Keymod Ar15 5.56/.223 w/ 12" RailMSF PRO Side Charging 18" SS .223 Wylde Fluted Complete Upper 6.5 Grendel Stainless Ar15 Upper with free float handguard

    $599.99

    $479.00

    $1,299.00

    $989.00

    $579.99

    $389.99

     
    9mm 3" Ar15 Pistol Upper with 4" Handguard and Flash Can MSF Billet Ar15 Stripped Lower and Side charging upper Set *FFL* 16" Custom Upper with Free Float Handguard, NiB BCG & Ext. Latch
    9mm 3" Ar15 Pistol Upper with 4" Handguard and Flash CanMSF Billet Ar15 Stripped Lower and Side charging upper Set *FFL*16" Custom Upper with Free Float Handguard, NiB BCG & Ext. Latch

    $399.00

    $229.00

    $399.00

    $379.00

    $599.00

    $489.00

     
    MSF 16" 5.56/223 1:8 Ar15 Upper with slim 12" M-Lok Rail MSF Red Charging Handle - spec ops Oversized Extended Latch Test Fired Melonite m16 BCG & Ext. Latch Charging Handle -blem
    MSF 16" 5.56/223 1:8 Ar15 Upper with slim 12" M-Lok RailMSF Red Charging Handle - spec ops Oversized Extended LatchTest Fired Melonite m16 BCG & Ext. Latch Charging Handle -blem

    $349.00

    $279.00

    $34.99

    $24.99

    $189.00

    $94.50

     
    7.5" Blem 5.56/223 Ar15 Pistol Upper, BCG and Charging Handle Blem MSF 16" 5.56/223 1:8 Ar15 Upper, slim Mlok or Keymod Rail 16" .223 Wylde 1:8 Ar15 Upper with C15 Slim Keymod Rail
    7.5" Blem 5.56/223 Ar15 Pistol Upper, BCG and Charging HandleBlem MSF 16" 5.56/223 1:8 Ar15 Upper, slim Mlok or Keymod Rail16" .223 Wylde 1:8 Ar15 Upper with C15 Slim Keymod Rail

    $399.99

    $299.00

    $429.00

    $249.00

    (4)

    $379.00

    $279.00

    (3)
     
    15" Slanted Hybrid M-Lok Free Float Rail 16" Stainless .223 Wylde 1:8 Ar15 Upper w/ V15 Slim Keymod Rail 16" .223 Wylde 1:8 Ar15 Upper with F15 Slim Keymod Rail
    15" Slanted Hybrid M-Lok Free Float Rail 16" Stainless .223 Wylde 1:8 Ar15 Upper w/ V15 Slim Keymod Rail16" .223 Wylde 1:8 Ar15 Upper with F15 Slim Keymod Rail

    $209.00

    $99.00

    $399.00

    $279.00

    (7)

    $379.00

    $279.00

     
    1 - 60 of 291 items
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