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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    61 - 120 of 269 items
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    OilSlick Ar15 Bolt Carrier Group m16 BCG Titanium Nitride TiN M16 / Ar15 MPI Bolt Carrier Group 5.56/223 'Ironman' Titanium Nitride BCG & SI Red Charging Handle set
    OilSlick Ar15 Bolt Carrier Group m16 BCGTitanium Nitride TiN M16 / Ar15 MPI Bolt Carrier Group 5.56/223'Ironman' Titanium Nitride BCG & SI Red Charging Handle set

    $249.00

    $179.00

    $229.00

    $159.00

    (2)

    $249.00

    $197.50

     
    Anderson Manufacturing Ar15 Lower Receiver Complete *FFL ITEM* MSF Billet Ar15 Stripped Lower Receiver *FFL ITEM* AR15 Assembled Upper Receiver - FDE Cerakote - Aero Precision
    Anderson Manufacturing Ar15 Lower Receiver Complete *FFL ITEM*MSF Billet Ar15 Stripped Lower Receiver *FFL ITEM*AR15 Assembled Upper Receiver - FDE Cerakote - Aero Precision

    $199.99

    $139.99

    (1)

    $199.00

    $129.00

    $125.00

    $95.00

     
    ICD Adjustable Gas Block .750 Low Profile Ar15 10.5" 5.56 / 223 Ar15 Pistol Upper with Hybrid Keymod Rail 10.5" 300 BLK Ar15 Pistol Upper with 12" Gen3 Rail & Flash Can
    ICD Adjustable Gas Block .750 Low Profile Ar1510.5" 5.56 / 223 Ar15 Pistol Upper with Hybrid Keymod Rail10.5" 300 BLK Ar15 Pistol Upper with 12" Gen3 Rail & Flash Can

    $59.99

    $49.99

    (1)

    $349.00

    $299.00

    (1)

    $429.00

    $299.00

    (2)
     
    9mm 7.5" Ar15 Pistol Upper with C9 Keymod and Flash Can 16" MSF 9mm Ar15 Upper with 10" Free Float Rail Rise Armament RA-140 Super Sporting Trigger - 3.5 lb pull
    9mm 7.5" Ar15 Pistol Upper with C9 Keymod and Flash Can16" MSF 9mm Ar15 Upper with 10" Free Float RailRise Armament RA-140 Super Sporting Trigger - 3.5 lb pull

    $399.00

    $329.00

    $379.99

    $284.99

    (4)

    $129.00

    $122.00

    (1)
     
    SS Blem 16" 5.56/223 Wylde AR15 Upper w/ BCG & Charging Handle 3lb Velocity Ar15 Drop in Trigger - 3lb Curved 18"-24" Stainless 308 / Ar10 / Lr308 Barrels
    SS Blem 16" 5.56/223 Wylde AR15 Upper w/ BCG & Charging Handle3lb Velocity Ar15 Drop in Trigger - 3lb Curved18"-24" Stainless 308 / Ar10 / Lr308 Barrels

    $409.99

    $299.99

    (44)

    $149.99

    $134.99

    (3)

    $249.00

     
    .308 3n1 Hybrid Flash Forwarder / Muzzle Brake 5/8-24 30 cal 9mm 7.5" Ar15 Complete Pistol Upper, with BCG and Keymod Rail 16" 6.5 Grendel Ar15 Upper Receiver with Free Float Rail
    .308 3n1 Hybrid Flash Forwarder / Muzzle Brake 5/8-24 30 cal 9mm 7.5" Ar15 Complete Pistol Upper, with BCG and Keymod Rail16" 6.5 Grendel Ar15 Upper Receiver with Free Float Rail

    $69.99

    $39.99

    (1)

    $499.00

    $399.00

    (2)

    $499.99

    $319.99

     
    16" 6.8 SPC II Ar15 Upper Receiver with Free Float Rail 5R MSF 20" 1:8 SS Fluted 5.56 / 223 Ar15 Upper with 15" Rail 9mm Nitride Hybrid Bolt Carrier Group for Glock & Colt AR15 mags
    16" 6.8 SPC II Ar15 Upper Receiver with Free Float Rail5R MSF 20" 1:8 SS Fluted 5.56 / 223 Ar15 Upper with 15" Rail9mm Nitride Hybrid Bolt Carrier Group for Glock & Colt AR15 mags

    $499.99

    $329.99

    $529.99

    $369.99

    (2)

    $169.99

    $129.99

    (2)
     
    12" Hybrid Keymod Free Float Rail 15" Hybrid Keymod Free Float Rail 10" Hybrid Keymod Free Float Rail
    12" Hybrid Keymod Free Float Rail 15" Hybrid Keymod Free Float Rail 10" Hybrid Keymod Free Float Rail

    $169.00

    $99.00

    (1)

    $179.00

    $109.00

    $169.00

    $99.00

     
    Ar15 Lower Build Kit Includes Mil Spec 6 Position Stock & LPK MSF 16" SS .223 Wylde 1:8 Upper with Gen2 Slim Quad Rail 16" Stainless M4 5.56 /.223 Wylde Ar15 Upper with Gen3 Slim Rail
    Ar15 Lower Build Kit Includes Mil Spec 6 Position Stock & LPKMSF 16" SS .223 Wylde 1:8 Upper with Gen2 Slim Quad Rail16" Stainless M4 5.56 /.223 Wylde Ar15 Upper with Gen3 Slim Rail

    $149.00

    $79.50

    $329.00

    $279.99

    (6)

    $349.00

    $319.00

    (8)
     
    16" Stainless .223 Wylde 1:8 Upper w/ MI SSK12 Slim Keymod Rail 16" Stainless .223 Wylde 1:8 SSK12 Upper w/ Nitride BCG & CH MSF Trucker Hat
    16" Stainless .223 Wylde 1:8 Upper w/ MI SSK12 Slim Keymod Rail16" Stainless .223 Wylde 1:8 SSK12 Upper w/ Nitride BCG & CHMSF Trucker Hat

    $489.99

    $399.99

    (1)

    $579.99

    $479.97

    (3)

    $5.99

     
    Ar15 Anti-Rotation / Anti-Walk Trigger & Hammer Pins set MSF Beverage Koozie / Huggie MSF 16" 5.56/223 Wylde AR15 Upper w/ BCG & Charging Handle
    Ar15 Anti-Rotation / Anti-Walk Trigger & Hammer Pins setMSF Beverage Koozie / HuggieMSF 16" 5.56/223 Wylde AR15 Upper w/ BCG & Charging Handle

    $19.99

    $2.99

    $1.49

    $379.99

    (13)
     
    5.56 / .223 Wylde 16" m4 Upper with 12" Free Float Quad Rail *Rifle Build Kit* MSF Sport 16" 1:8 5.56/.223 Wylde Ar15 *Rifle Build Kit* 16" Ar15 5.56/.223 blem w/ 10" Free Float Rail
    5.56 / .223 Wylde 16" m4 Upper with 12" Free Float Quad Rail*Rifle Build Kit* MSF Sport 16" 1:8 5.56/.223 Wylde Ar15 *Rifle Build Kit* 16" Ar15 5.56/.223 blem w/ 10" Free Float Rail

    $279.99

    (4)

    $499.99

    $399.99

    (6)

    $529.99

    $379.99

    (1)
     
    *Rifle Build Kit* 16" Ar15 5.56/.223 w/ 10" Free Float Rail MSF Sport 16" 5.56/.223 Wylde Ar15 Upper 5.56 / .223 Wylde 16" m4 Upper with 15" Free Float Quad Rail
    *Rifle Build Kit* 16" Ar15 5.56/.223 w/ 10" Free Float RailMSF Sport 16" 5.56/.223 Wylde Ar15 Upper 5.56 / .223 Wylde 16" m4 Upper with 15" Free Float Quad Rail

    $529.99

    $429.00

    (8)

    $279.99

    $219.99

    (1)

    $279.99

    (14)
     
    MSF Sport 16" .223 Wylde 1:8 AR15 Upper w/ BCG & Charging Handle Double Upper Combo!  Complete .223 Wylde & 300 Blk MSF Blem 16" 5.56/223 Wylde AR15 Upper with 10" Free Float
    MSF Sport 16" .223 Wylde 1:8 AR15 Upper w/ BCG & Charging HandleDouble Upper Combo! Complete .223 Wylde & 300 BlkMSF Blem 16" 5.56/223 Wylde AR15 Upper with 10" Free Float

    $439.99

    $329.99

    (4)

    $599.99

    $499.99

    (6)

    $379.99

    $209.99

    (16)
     
    7.5" Stainless 5.56 / .223 Wylde 1:7 416r Barrel Grab Bag / Clearance Ar15 Rifle Upper w/ Free Float Handguard Upgraded Grab Bag / Clearance Ar15 Rifle Upper w/ Free Float
    7.5" Stainless 5.56 / .223 Wylde 1:7 416r BarrelGrab Bag / Clearance Ar15 Rifle Upper w/ Free Float HandguardUpgraded Grab Bag / Clearance Ar15 Rifle Upper w/ Free Float

    $169.99

    $99.00

    $299.99

    $199.99

    (8)

    $399.99

    $249.00

    (6)
     
    Grab Bag / Clearance Ar15 PISTOL Upper w/ Free Float Handguard 7.5" MSF Lightweight Sport 5.56/223 Wylde Ar15 Pistol Upper 7.5" Stainless 1:7 5.56/223 ar15 Upper with 7" Free Float Rail
    Grab Bag / Clearance Ar15 PISTOL Upper w/ Free Float Handguard7.5" MSF Lightweight Sport 5.56/223 Wylde Ar15 Pistol Upper 7.5" Stainless 1:7 5.56/223 ar15 Upper with 7" Free Float Rail

    $299.99

    $199.99

    (5)

    $219.99

    (7)

    $269.99

    $239.99

    (4)
     
    Magpul MAG® D-60™ AR/M4 5.56X45MM NATO *Pistol Build Kit* 7.5" Sport 5.56 / .223 Wylde Ar15 w/ 7" Rail 10.5" SS 1:7 5.56/223 ar15 Upper, 10" Gen3 Slim Free Float Rail
    Magpul MAG® D-60™ AR/M4 5.56X45MM NATO*Pistol Build Kit* 7.5" Sport 5.56 / .223 Wylde Ar15 w/ 7" Rail10.5" SS 1:7 5.56/223 ar15 Upper, 10" Gen3 Slim Free Float Rail

    $129.95

    $549.00

    $399.99

    (2)

    $379.00

    $299.00

    (2)
     
    10.5" Blem 5.56/223 AR15 Complete Upper w/ BCG & Charging Handle 10.5" SS 1:7 5.56/223 ar15 Upper, 10" Gen2 Slim Free Float Rail 10.5" Stainless .223 Wylde 1:8 SSK Upper w/ Nitride BCG & CH
    10.5" Blem 5.56/223 AR15 Complete Upper w/ BCG & Charging Handle10.5" SS 1:7 5.56/223 ar15 Upper, 10" Gen2 Slim Free Float Rail10.5" Stainless .223 Wylde 1:8 SSK Upper w/ Nitride BCG & CH

    $379.00

    $299.00

    (25)

    $379.00

    $289.00

    (2)

    $589.99

    $479.97

     
    10.5" Stainless 1:7 5.56/223 ar15 Upper with 10" Free Float Rail 10.5" Stainless .223 Wylde 1:8 Upper w/  MI SSK Slim Keymod Rail 10-Pack of PMAG 30 AR/M4 GEN M2 MOE 5.56X45MM NATO
    10.5" Stainless 1:7 5.56/223 ar15 Upper with 10" Free Float Rail10.5" Stainless .223 Wylde 1:8 Upper w/ MI SSK Slim Keymod Rail10-Pack of PMAG 30 AR/M4 GEN M2 MOE 5.56X45MM NATO

    $279.99

    (18)

    $489.99

    $379.99

    (1)

    $129.95

    $99.95

     
    Troy Tomahawk PDW Stock - 5.56 Black B.A.D. Vert PDW Stock System *Pistol Build Kit* 10.5" 5.56 / .223 Wylde Ar15 with 10" FF Rail
    Troy Tomahawk PDW Stock - 5.56 BlackB.A.D. Vert PDW Stock System*Pistol Build Kit* 10.5" 5.56 / .223 Wylde Ar15 with 10" FF Rail

    $355.00

    $299.00

    $450.00

    $419.00

    $529.00

    $429.00

    (1)
     
    61 - 120 of 269 items