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 280 items
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    *PREMIUM Rifle Build Kit* 3lb Trigger with Slim Rail & NiBo BCG *Rifle Build Kit* 16" SS Ar15 5.56/.223 1:8 mid w/ c12 Mlok Rail *Rifle Build Kit* blem 16" SS Ar15 5.56 1:8 mid, 12" mlok Rail
    *PREMIUM Rifle Build Kit* 3lb Trigger with Slim Rail & NiBo BCG*Rifle Build Kit* 16" SS Ar15 5.56/.223 1:8 mid w/ c12 Mlok Rail*Rifle Build Kit* blem 16" SS Ar15 5.56 1:8 mid, 12" mlok Rail

    $699.99

    $574.99

    $599.99

    $299.99

    $599.99

    $299.99

     
    10.5" SS 9mm ar15 upper, c13 keymod, flash can, bcg, ambi ch 16" SS .223 Wylde 1:8 AR15 Upper with c12 M-Lok Rail 16" SS blem Mid Length 5.56 Nato 1:8 AR15 Upper with c12 M-Lok
    10.5" SS 9mm ar15 upper, c13 keymod, flash can, bcg, ambi ch 16" SS .223 Wylde 1:8 AR15 Upper with c12 M-Lok Rail16" SS blem Mid Length 5.56 Nato 1:8 AR15 Upper with c12 M-Lok

    $499.00

    $299.00

    $379.99

    $269.00

    $379.99

    $209.99

     
    18" 1:8 5.56/223 Wylde Ar15 Upper with c12 Mlok 18" 1:8 SS Fluted 5.56/223 MLok Upper, Nickel Boron BCG & CH 7.5 Blem 5.56/223 Ar15 Upper w/ M-Lok, BCG & Charging Handle
    18" 1:8 5.56/223 Wylde Ar15 Upper with c12 Mlok18" 1:8 SS Fluted 5.56/223 MLok Upper, Nickel Boron BCG & CH7.5 Blem 5.56/223 Ar15 Upper w/ M-Lok, BCG & Charging Handle

    $479.99

    $279.00

    $699.99

    $499.99

    (3)

    $419.00

    $249.00

     
    7.5" Blem 5.56/223 Ar15 Pistol Upper w/ M-Lok Handguard SALE! *blem* m4 Stripped upper with dust cover & fwd assist kit SALE! *blem* Mil Spec Ar15 Stripped Upper Receiver, Limit 3
    7.5" Blem 5.56/223 Ar15 Pistol Upper w/ M-Lok HandguardSALE! *blem* m4 Stripped upper with dust cover & fwd assist kitSALE! *blem* Mil Spec Ar15 Stripped Upper Receiver, Limit 3

    $419.00

    $179.00

    $99.99

    $49.50

    $79.99

    $34.99

    (1)
     
    Stainless Threaded Glock 17 G17 9mm Barrel , 1/2-28 threads 16" MSF Specter .223 Wylde Ar15 Upper with 12" Gen3 Slim Rail Oilslick Rainbow PVD Competition Muzzle Brake SS 1/2-28  223
    Stainless Threaded Glock 17 G17 9mm Barrel , 1/2-28 threads16" MSF Specter .223 Wylde Ar15 Upper with 12" Gen3 Slim RailOilslick Rainbow PVD Competition Muzzle Brake SS 1/2-28 223

    $179.00

    $99.00

    $529.99

    $279.99

    (25)

    $59.99

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

    $299.00

    $249.00

    $379.99

    $299.99

    $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" Stainless .223 Wylde 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" Stainless .223 Wylde 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

    (4)

    $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

     
    Grab Bag 5.56/223 Ar15 Upper with BCG and Charging Handle M-Lok 16" blem 5.56/223 Wylde AR15 Upper with 10"  Handguard 18" .450 Bushmaster Ar15 Hbar Upper Receiver
    Grab Bag 5.56/223 Ar15 Upper with BCG and Charging HandleM-Lok 16" blem 5.56/223 Wylde AR15 Upper with 10" Handguard18" .450 Bushmaster Ar15 Hbar Upper Receiver

    $499.00

    $349.00

    (1)

    $379.99

    $229.99

    $589.99

    $389.99

     
    MSF Blem 16" 5.56/223 Wylde AR15 Upper w/ BCG & Charging Handle *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
    MSF Blem 16" 5.56/223 Wylde AR15 Upper w/ BCG & Charging Handle*Rifle Build Kit* SS 16" Slant Keymod Ar15 5.56/.223 w/ 12" RailMSF PRO Side Charging 18" SS .223 Wylde Fluted Complete Upper

    $379.99

    $329.99

    (55)

    $599.99

    $479.00

    $1,299.00

    $989.00

     
    6.5 Grendel Stainless Ar15 Upper with free float handguard 9mm 3" Ar15 Pistol Upper with 4" Handguard and Flash Can MSF Billet Ar15 Stripped Lower and Side charging upper Set *FFL*
    6.5 Grendel Stainless Ar15 Upper with free float handguard9mm 3" Ar15 Pistol Upper with 4" Handguard and Flash CanMSF Billet Ar15 Stripped Lower and Side charging upper Set *FFL*

    $579.99

    $389.99

    $399.00

    $279.00

    $399.00

    $379.00

     
    16" Custom Upper with Free Float Handguard, NiB BCG & Ext. Latch MSF 16" 5.56/223 1:8 Ar15 Upper with slim 12" M-Lok Rail MSF Red Charging Handle - spec ops Oversized Extended Latch
    16" Custom Upper with Free Float Handguard, NiB BCG & Ext. LatchMSF 16" 5.56/223 1:8 Ar15 Upper with slim 12" M-Lok RailMSF Red Charging Handle - spec ops Oversized Extended Latch

    $599.00

    $489.00

    $349.00

    $279.00

    $34.99

    $24.99

     
    Test Fired Melonite m16 BCG & Ext. Latch Charging Handle -blem 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
    Test Fired Melonite m16 BCG & Ext. Latch Charging Handle -blem7.5" Blem 5.56/223 Ar15 Pistol Upper, BCG and Charging HandleBlem MSF 16" 5.56/223 1:8 Ar15 Upper, slim Mlok or Keymod Rail

    $189.00

    $94.50

    $399.99

    $299.00

    $429.00

    $249.00

    (4)
     
    16" .223 Wylde 1:8 Ar15 Upper with C15 Slim Keymod Rail 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 C15 Slim Keymod Rail15" Slanted Hybrid M-Lok Free Float Rail 16" Stainless .223 Wylde 1:8 Ar15 Upper w/ V15 Slim Keymod Rail

    $379.00

    $279.00

    (3)

    $209.00

    $99.00

    $399.00

    $279.00

    (7)
     
    16" .223 Wylde 1:8 Ar15 Upper with F15 Slim Keymod Rail 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
    16" .223 Wylde 1:8 Ar15 Upper with F15 Slim Keymod Rail16" Stainless .223 Wylde 1:8 Ar15 Upper w/ F15 Slim Keymod Rail16" .223 Wylde 1:8 Ar15 Upper with V15 Slim Keymod Rail

    $379.00

    $279.00

    $399.00

    $279.00

    (5)

    $379.00

    $279.00

    (9)
     
    *Pistol Build Kit* 10.5" 7.62x39 Ar15 with 10" FF Rail 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
    *Pistol Build Kit* 10.5" 7.62x39 Ar15 with 10" FF Rail16" SS .223 Wylde 1:8 Ar15 Upper with Slanted Hybrid Keymod RailSide Charging Ar15 Upper and BCG Combo - 5.56 / 223 / 300 blk

    $549.00

    $469.00

    $399.00

    $279.00

    (2)

    $299.00

    $199.00

     
    10.5" SS 5.56/223 Ar15 Upper, Slanted Hybrid Keymod & Flash Can 10.5" 300 BLK Ar15 Upper, Slanted Hybrid Keymod & Flash Can *blem* Mil Spec Ar15 Stripped Upper Receiver - a3/a4 Flat Top
    10.5" SS 5.56/223 Ar15 Upper, Slanted Hybrid Keymod & Flash Can10.5" 300 BLK Ar15 Upper, Slanted Hybrid Keymod & Flash Can*blem* Mil Spec Ar15 Stripped Upper Receiver - a3/a4 Flat Top

    $449.00

    $339.00

    $429.00

    $329.00

    $79.99

    $43.89

     
    9mm Matrix Non-Reciprocating Side Charging Billet Ar15 Upper 15" Slanted Hybrid Keymod Free Float Rail 12" Slanted Hybrid M-Lok Free Float Rail
    9mm Matrix Non-Reciprocating Side Charging Billet Ar15 Upper15" Slanted Hybrid Keymod Free Float Rail 12" Slanted Hybrid M-Lok Free Float Rail

    $299.95

    $239.95

    $199.00

    $99.00

    $179.00

    $99.00

    (1)
     
    1 - 60 of 280 items
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