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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    121 - 180 of 291 items
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    5.56 / .223 Wylde 16" m4 Upper with 15" Free Float Quad Rail MSF Sport 16" .223 Wylde 1:8 AR15 Upper w/ BCG & Charging Handle Double Upper Combo!  Complete .223 Wylde & 300 Blk
    5.56 / .223 Wylde 16" m4 Upper with 15" Free Float Quad RailMSF Sport 16" .223 Wylde 1:8 AR15 Upper w/ BCG & Charging HandleDouble Upper Combo! Complete .223 Wylde & 300 Blk

    $279.99

    (14)

    $439.99

    $329.99

    (4)

    $599.99

    $499.99

    (7)
     
    MSF Blem 16" 5.56/223 Wylde AR15 Upper with 10" Free Float 7.5" Stainless 5.56 / .223 Wylde 1:7 416r Barrel Grab Bag / Clearance Ar15 Rifle Upper w/ Free Float Handguard
    MSF Blem 16" 5.56/223 Wylde AR15 Upper with 10" Free Float7.5" Stainless 5.56 / .223 Wylde 1:7 416r BarrelGrab Bag / Clearance Ar15 Rifle Upper w/ Free Float Handguard

    $379.99

    $229.99

    (16)

    $169.99

    $99.00

    $299.99

    $199.99

    (8)
     
    Upgraded Grab Bag / Clearance Ar15 Rifle Upper w/ Free Float Grab Bag / Clearance Ar15 PISTOL Upper w/ Free Float Handguard 7.5" MSF Lightweight Sport 5.56/223 Wylde Ar15 Pistol Upper
    Upgraded Grab Bag / Clearance Ar15 Rifle Upper w/ Free Float Grab Bag / Clearance Ar15 PISTOL Upper w/ Free Float Handguard7.5" MSF Lightweight Sport 5.56/223 Wylde Ar15 Pistol Upper

    $399.99

    $249.00

    (6)

    $299.99

    $199.99

    (5)

    $219.99

    (7)
     
    7.5" Stainless 1:7 5.56/223 ar15 Upper with 7" 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" Rail
    7.5" Stainless 1:7 5.56/223 ar15 Upper with 7" Free Float RailMagpul MAG® D-60™ AR/M4 5.56X45MM NATO*Pistol Build Kit* 7.5" Sport 5.56 / .223 Wylde Ar15 w/ 7" Rail

    $269.99

    $239.99

    (4)

    $129.95

    $549.00

    $399.99

    (2)
     
    10.5" SS 1:7 5.56/223 ar15 Upper, 10" Gen3 Slim Free Float Rail 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" SS 1:7 5.56/223 ar15 Upper, 10" Gen3 Slim Free Float Rail10.5" 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 Rail

    $379.00

    $299.00

    (2)

    $379.00

    $329.99

    (25)

    $379.00

    $289.00

    (2)
     
    10.5" Stainless .223 Wylde 1:8 SSK Upper w/ Nitride BCG & CH 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
    10.5" Stainless .223 Wylde 1:8 SSK Upper w/ Nitride BCG & CH10.5" 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 Rail

    $589.99

    $479.97

    $279.99

    (18)

    $489.99

    $379.99

    (1)
     
    10-Pack of PMAG 30 AR/M4 GEN M2 MOE 5.56X45MM NATO Troy Tomahawk PDW Stock - 5.56 Black B.A.D. Vert PDW Stock System
    10-Pack of PMAG 30 AR/M4 GEN M2 MOE 5.56X45MM NATOTroy Tomahawk PDW Stock - 5.56 BlackB.A.D. Vert PDW Stock System

    $129.95

    $99.95

    $355.00

    $299.00

    $450.00

    $419.00

     
    *Pistol Build Kit* 10.5" 5.56 / .223 Wylde Ar15 with 10" FF Rail 18" 1:8 Stainless Fluted 5.56/223 ar15 Upper with 12" Free Float 18" SS .223 Wylde 1:8 Fluted Ar15 Upper, 15" Midwest SSK Rail
    *Pistol Build Kit* 10.5" 5.56 / .223 Wylde Ar15 with 10" FF Rail18" 1:8 Stainless Fluted 5.56/223 ar15 Upper with 12" Free Float18" SS .223 Wylde 1:8 Fluted Ar15 Upper, 15" Midwest SSK Rail

    $529.00

    $429.00

    (1)

    $479.99

    $329.99

    (48)

    $579.99

    $459.99

    (4)
     
    MSF 20" 1:8 Stainless Fluted .223 Wylde Ar15 Upper with 15" Rail 24" SS Fluted Heavy Bull 5.56 .223 Wylde Upper & Gen3 slim rail 7.5" 300 Blackout Ar15 Upper w/ Slim Keymod Free Float
    MSF 20" 1:8 Stainless Fluted .223 Wylde Ar15 Upper with 15" Rail24" SS Fluted Heavy Bull 5.56 .223 Wylde Upper & Gen3 slim rail7.5" 300 Blackout Ar15 Upper w/ Slim Keymod Free Float

    $529.99

    $369.99

    (23)

    $529.00

    $399.00

    (5)

    $329.00

    $279.00

    (2)
     
    7.5" 300 Blackout Ar-15 Upper with Free Float Rail 10.5" 300 Blackout Ar15 Upper 16" 300 Blackout Stainless Ar15 Upper w/ F15 Slim Keymod Rail
    7.5" 300 Blackout Ar-15 Upper with Free Float Rail 10.5" 300 Blackout Ar15 Upper16" 300 Blackout Stainless Ar15 Upper w/ F15 Slim Keymod Rail

    $279.00

    $269.00

    (4)

    $329.99

    $279.00

    (8)

    $479.00

    $349.00

    (1)
     
    16" 300 AAC Blackout Ar15 Upper with Free Float Rail *pistol gas *Pistol Build Kit* 10.5" 300 Blackout Ar15 with 10" FF Rail 16" 300 AAC Blackout Ar15 Upper with Free Float Rail
    16" 300 AAC Blackout Ar15 Upper with Free Float Rail *pistol gas*Pistol Build Kit* 10.5" 300 Blackout Ar15 with 10" FF Rail16" 300 AAC Blackout Ar15 Upper with Free Float Rail

    $349.99

    $279.00

    $549.00

    $449.00

    $329.99

    $279.00

    (17)
     
    BMS 300Blk Upper: 10.5" + welded Suppressor Shroud = Legal 16" 7.5" 7.62x39 Ar-15 Upper with Free Float Rail 10.5" 7.62x39 Ar15 Pistol Upper w/ Free Float Quad Rail
    BMS 300Blk Upper: 10.5" + welded Suppressor Shroud = Legal 16" 7.5" 7.62x39 Ar-15 Upper with Free Float Rail10.5" 7.62x39 Ar15 Pistol Upper w/ Free Float Quad Rail

    $780.00

    $649.99

    (4)

    $279.00

    $269.00

    $299.99

    $279.99

    (2)
     
    7.62x39 16" Ar15 Upper with 10" Free Float Quad Rail 16" Ar .308 Upper with 15" Slim Keymod Rail (Dpms pattern)
    7.62x39 16" Ar15 Upper with 10" Free Float Quad Rail16" Ar .308 Upper with 15" Slim Keymod Rail (Dpms pattern)308 Melonite Bolt Carrier Group

    $399.00

    $279.99

    (18)

    $599.99

    $399.00

    (1)

    $179.00

    $149.00

     
    AR 308 / DPMS / ar10 Stripped Upper Receiver with DCFA Non-Reciprocating Side Charging Billet Ar15 Upper with DCFA 7" v7 Keymod Slant Front Slim Free Float Rail / Handguard
    AR 308 / DPMS / ar10 Stripped Upper Receiver with DCFANon-Reciprocating Side Charging Billet Ar15 Upper with DCFA7" v7 Keymod Slant Front Slim Free Float Rail / Handguard

    $149.00

    $134.75

    $299.95

    (4)

    $99.00

    $59.00

     
    7" Gen3 Slim Free Float Rail / Handguard 7" F7 Keymod Flat Front Slim Free Float Rail / Handguard
    7" gen1 free float quad rail7" Gen3 Slim Free Float Rail / Handguard7" F7 Keymod Flat Front Slim Free Float Rail / Handguard

    $49.99

    $99.00

    $89.00

    $99.00

    $59.00

     
    7" c7 Keymod 'Scoop Front" Slim Free Float Rail / Handguard 7" Gen2 Slim Free Float Picatinny Quad Rail 9" F9 Keymod  Slim Free Float Rail / Handguard
    7" c7 Keymod 'Scoop Front" Slim Free Float Rail / Handguard7" Gen2 Slim Free Float Picatinny Quad Rail9" F9 Keymod Slim Free Float Rail / Handguard

    $99.00

    $59.00

    $99.99

    $59.99

    $109.00

    $69.00

     
    9" v9 Keymod 'Slant Front" Slim Free Float Rail / Handguard 9" c9 Keymod 'Scoop Front" Slim Free Float Rail / Handguard 10" Gen2 Slim Free Float Picatinny Quad rail
    9" v9 Keymod 'Slant Front" Slim Free Float Rail / Handguard9" c9 Keymod 'Scoop Front" Slim Free Float Rail / Handguard10" Gen2 Slim Free Float Picatinny Quad rail

    $109.00

    $69.00

    $109.00

    $69.00

    $109.99

    $79.99

     
    10" Gen3 Slim Free Float Handguard / Rail 12" Gen3 Slim Free Float Rail / Handguard 12" Gen2 Slim Free Float Picatinny Quad Rail
    10" Gen3 Slim Free Float Handguard / Rail12" Gen3 Slim Free Float Rail / Handguard12" Gen2 Slim Free Float Picatinny Quad Rail

    $119.00

    $89.00

    (2)

    $125.00

    $95.00

    $115.00

    $85.00

    (1)
     
    12" blem Free-Float Quad Rail 12" Triangle Cutout Keymod Rail / Handguard 15" Gen2 Slim Free Float Picatinny Quad Rail
    12" blem Free-Float Quad Rail12" Triangle Cutout Keymod Rail / Handguard15" Gen2 Slim Free Float Picatinny Quad Rail

    $104.99

    $39.99

    $99.00

    $79.00

    $125.00

    $95.00

     
    15" Gen3 Slim Free Float Handguard / Rail MI SSK-KeyMod Series One Piece Free Float Handguard, 15-inch 15" Triangle Cutout Keymod Rail / Handguard
    15" Gen3 Slim Free Float Handguard / RailMI SSK-KeyMod Series One Piece Free Float Handguard, 15-inch15" Triangle Cutout Keymod Rail / Handguard

    $145.00

    $99.00

    (1)

    $219.95

    $199.95

    $99.00

    $79.00

    (1)
     
    121 - 180 of 291 items