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 283 items
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    10.5" .223 Wylde Rainbow PVD Oilslick 416r SS Ar15 Barrel 16" 300 Blackout Rainbow PVD Oilslick 416r 1:8 Ar15 Barrel 16" Mid Length PVD Oilslick 556 Nato 1:8 416r SS Ar15 Barrel
    10.5" .223 Wylde Rainbow PVD Oilslick 416r SS Ar15 Barrel16" 300 Blackout Rainbow PVD Oilslick 416r 1:8 Ar15 Barrel16" Mid Length PVD Oilslick 556 Nato 1:8 416r SS Ar15 Barrel

    $299.00

    $199.00

    $299.00

    $249.00

    $299.00

    $199.00

     
    18" 450 Bushmaster Rainbow PVD Oilslick 416r Ar15 Barrel 18" Fluted Rainbow PVD Oilslick .223 Wylde 1:8 SS Ar15 Barrel 18" Spiral Flute Rainbow PVD Oilslick .223 Wylde SS Ar15 Barrel
    18" 450 Bushmaster Rainbow PVD Oilslick 416r Ar15 Barrel18" Fluted Rainbow PVD Oilslick .223 Wylde 1:8 SS Ar15 Barrel18" Spiral Flute Rainbow PVD Oilslick .223 Wylde SS Ar15 Barrel

    $299.00

    $289.00

    $349.00

    $269.00

    $349.00

    $289.00

     
    20" Fluted Rainbow PVD Oilslick 5.56/223 1:8 SS Ar15 Barrel 7.5" .223 Wylde Rainbow PVD Oilslick 416r SS Ar15 Barrel 16" Pencil PVD Oilslick .223 Wylde 1:8 Mid 416r SS Ar15 Barrel
    20" Fluted Rainbow PVD Oilslick 5.56/223 1:8 SS Ar15 Barrel7.5" .223 Wylde Rainbow PVD Oilslick 416r SS Ar15 Barrel16" Pencil PVD Oilslick .223 Wylde 1:8 Mid 416r SS Ar15 Barrel

    $349.00

    $289.00

    $299.00

    $199.00

    $299.00

    $219.00

     
    24" Fluted Rainbow PVD Oilslick .223 Wylde 1:8 416r SS Ar15 Ar15 Low Profile .750 Stainless Gas Block - Oilslick finish Diamond Fluted Rainbow PVD Oilslick .223 Wylde 416r Ar15 Barrel
    24" Fluted Rainbow PVD Oilslick .223 Wylde 1:8 416r SS Ar15 Ar15 Low Profile .750 Stainless Gas Block - Oilslick finishDiamond Fluted Rainbow PVD Oilslick .223 Wylde 416r Ar15 Barrel

    $399.00

    $329.00

    $59.99

    $44.99

    $299.00

    $249.00

     
    Golfball Flute Rainbow PVD Oilslick 223 Wylde SS Ar15 Barrel Oilslick Rainbow PVD Competition Muzzle Brake SS 1/2-28  223 Oilslick Rainbow PVD Competition Muzzle Brake SS 5/8-24 .30cal
    Golfball Flute Rainbow PVD Oilslick 223 Wylde SS Ar15 BarrelOilslick Rainbow PVD Competition Muzzle Brake SS 1/2-28 223Oilslick Rainbow PVD Competition Muzzle Brake SS 5/8-24 .30cal

    $299.00

    $239.00

    $59.99

    $59.99

     
    Spiral Flute Rainbow PVD Oilslick .223 Wylde 416r SS Ar15 Barrel 16" MSF Specter .223 Wylde Ar15 Upper with 12" Gen3 Slim Rail 16" SS blem Mid Length 5.56 Nato 1:8 AR15 Upper with 12" M-Lok
    Spiral Flute Rainbow PVD Oilslick .223 Wylde 416r SS Ar15 Barrel16" MSF Specter .223 Wylde Ar15 Upper with 12" Gen3 Slim Rail16" SS blem Mid Length 5.56 Nato 1:8 AR15 Upper with 12" M-Lok

    $299.00

    $239.00

    $529.99

    $279.99

    (25)

    $379.99

    $229.99

     
    Caliber Engraved Ar15 Easy Install Ejection Port / Dust Cover 18" 1:8 SS Fluted 5.56/223 MLok Upper, Nickel Boron BCG & CH CUSTOM Engraved Ar15 Easy Install Ejection Port / Dust Cover
    Caliber Engraved Ar15 Easy Install Ejection Port / Dust Cover18" 1:8 SS Fluted 5.56/223 MLok Upper, Nickel Boron BCG & CHCUSTOM Engraved Ar15 Easy Install Ejection Port / Dust Cover

    $25.00

    $14.99

    $699.99

    $499.99

    (3)

    $35.00

    $24.99

     
    M-Lok Blem 16" 223 Wylde AR15 Upper w/ BCG & Charging Handle, 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
    M-Lok Blem 16" 223 Wylde AR15 Upper w/ BCG & Charging Handle, 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 Pins

    $379.99

    $299.99

    $429.00

    $279.00

    (1)

    $209.99

    $149.99

     
    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 16" Stainless .223 Wylde 1:8 Ar15 Upper w/ C15 Slim Keymod Rail
    MSF 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 Rail16" Stainless .223 Wylde 1:8 Ar15 Upper w/ C15 Slim Keymod Rail

    $429.00

    $279.00

    $399.00

    $279.00

    $399.00

    $279.00

    (4)
     
    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

    $399.99

    $589.99

    $389.99

    $499.00

    $349.00

     
    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

    $279.00

    $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

    $84.99

     
    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

     
    16" Stainless .223 Wylde 1:8 Ar15 Upper w/ F15 Slim Keymod Rail 16" .223 Wylde 1:8 Ar15 Upper with V15 Slim Keymod Rail *Pistol Build Kit* 10.5" 7.62x39 Ar15 with 10" FF Rail
    16" Stainless .223 Wylde 1:8 Ar15 Upper w/ F15 Slim Keymod Rail16" .223 Wylde 1:8 Ar15 Upper with V15 Slim Keymod Rail*Pistol Build Kit* 10.5" 7.62x39 Ar15 with 10" FF Rail

    $399.00

    $279.00

    (5)

    $379.00

    $279.00

    (9)

    $549.00

    $469.00

     
    16" SS .223 Wylde 1:8 Ar15 Upper with Slanted Hybrid Keymod Rail Side Charging Ar15 Upper and BCG Combo - 5.56 / 223 / 300 blk 10.5" SS 5.56/223 Ar15 Upper, Slanted Hybrid Keymod & Flash Can
    16" SS .223 Wylde 1:8 Ar15 Upper with Slanted Hybrid Keymod RailSide Charging Ar15 Upper and BCG Combo - 5.56 / 223 / 300 blk10.5" SS 5.56/223 Ar15 Upper, Slanted Hybrid Keymod & Flash Can

    $399.00

    $279.00

    (2)

    $299.00

    $199.00

    $449.00

    $339.00

     
    10.5" 300 BLK Ar15 Upper, Slanted Hybrid Keymod & Flash Can *blem* Mil Spec Ar15 Stripped Upper Receiver - a3/a4 Flat Top 9mm Matrix Non-Reciprocating Side Charging Billet Ar15 Upper
    10.5" 300 BLK Ar15 Upper, Slanted Hybrid Keymod & Flash Can*blem* Mil Spec Ar15 Stripped Upper Receiver - a3/a4 Flat Top9mm Matrix Non-Reciprocating Side Charging Billet Ar15 Upper

    $429.00

    $329.00

    $79.99

    $43.89

    $299.95

    $199.95

     
    1 - 60 of 283 items
    1 2 3 ... 5 » View All