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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    241 - 292 of 292 items
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    SI Fat Comp 01 .223 SI Fat Comp 04 .223 SI Fat Comp 03 .223
    SI Fat Comp 01 .223SI Fat Comp 04 .223SI Fat Comp 03 .223

    $49.95

    $39.95

    $49.95

    $39.95

    $49.95

    $39.95

     
    SI Checkmate Comp SI Type89 J-Comp v2 2.0 .223/5.56 (1/2-28 threads) Jcomp SI King Comp
    SI Checkmate CompSI Type89 J-Comp v2 2.0 .223/5.56 (1/2-28 threads) JcompSI King Comp

    $49.95

    $39.95

    $44.95

    $39.95

    $49.95

    $44.95

     
    SI Triple Crown Comp 223 / 5.56 1/2-28 Threads SI Venom Flash Hider - Strike Industries SI Cobra Dummy Suppressor w/ Threaded Muzzle
    SI Triple Crown Comp 223 / 5.56 1/2-28 ThreadsSI Venom Flash Hider - Strike IndustriesSI Cobra Dummy Suppressor w/ Threaded Muzzle

    $49.95

    $47.95

    $49.95

    $44.95

    $49.99

     
    Stainless Tanker Style Comp Brake Stainless Twisted Flash Hider 5.56/.223 Stainless Centurion Ar15 Muzzle Brake .223 1/2-28 threads
    Stainless Tanker Style Comp BrakeStainless Twisted Flash Hider 5.56/.223Stainless Centurion Ar15 Muzzle Brake .223 1/2-28 threads

    $59.00

    $39.99

    (2)

    $37.99

     
    Spiral Flash Hider, .223 1/2-28 Threads Competition Muzzle Brake, Black, .308 5/8-24 Threads Trident Flash Hider, Ar15 .223 1/2-28 Threads
    Spiral Flash Hider, .223 1/2-28 ThreadsCompetition Muzzle Brake, Black, .308 5/8-24 ThreadsTrident Flash Hider, Ar15 .223 1/2-28 Threads

    $39.99

    $59.99

    $35.99

    $35.99

     
    1/2-28 Ar15 Flash Can, Black 5/8-24 Flash Can, Black Ar15 / Ar10 Spectre Flash Hider .223
    1/2-28 Ar15 Flash Can, Black5/8-24 Flash Can, Black Ar15 / Ar10Spectre Flash Hider .223

    $35.00

    $35.00

    $29.99

    $20.99

    (1)
     
    16" Mid-Length 5.56 NATO 1:7 4150 Ar15 Barrel 9mm Nitride Bolt Carrier Group and Stripped Upper Combo Nickel Boron EXO M16 / Ar15 Full Auto Bolt Carrier Group
    16" Mid-Length 5.56 NATO 1:7 4150 Ar15 Barrel9mm Nitride Bolt Carrier Group and Stripped Upper ComboNickel Boron EXO M16 / Ar15 Full Auto Bolt Carrier Group

    $169.00

    $99.00

    $209.99

    $189.99

    (1)

    $219.00

    $179.00

     
    7.62x39 M16 / Ar15 Bolt Carrier Group Melonite / Black Nitride M16 / Ar15 Full Auto Bolt Carrier Group Ar15 / M16 Firing Pin
    7.62x39 M16 / Ar15 Bolt Carrier GroupMelonite / Black Nitride M16 / Ar15 Full Auto Bolt Carrier GroupAr15 / M16 Firing Pin

    $189.00

    $99.00

    $189.00

    $99.00

    (3)

    $6.95

     
    .750 Steel Low Profile Nitride Ar15 Gas Block - Super Nice! .875 Steel Low Profile Gas Block Gas Block / Gas Tube Assembly with Gas Block and Gas Tube
    .750 Steel Low Profile Nitride Ar15 Gas Block - Super Nice!.875 Steel Low Profile Gas BlockGas Block / Gas Tube Assembly with Gas Block and Gas Tube

    $22.00

    $14.99

    (2)

    $45.00

    $29.99

    (1)

    $25.99

    (1)
     
    Rogers Super-Stoc - Mil Spec Adjustable Rifle Stock Slim Stock with Mil Spec 6-position Buffer Tube Kit Pistol Buffer Tube Kit
    Rogers Super-Stoc - Mil Spec Adjustable Rifle StockSlim Stock with Mil Spec 6-position Buffer Tube KitPistol Buffer Tube Kit

    $78.95

    $63.99

    $49.99

    $49.99

    $39.99

    (4)
     
    Ar-15 Ambi Double Sling Plate Adapter Ar15 Upper/lower Accuracy anti-wobble wedge Ar15 Standard Lower Parts Kit LPK
    Ar-15 Ambi Double Sling Plate AdapterAr15 Upper/lower Accuracy anti-wobble wedgeAr15 Standard Lower Parts Kit LPK

    $7.99

    $4.99

    $59.99

    $44.99

    (5)
     
    Ar15 Forward Assist Assembly Ar15 Ejection Port Dust Cover Assembly / Kit
    Ar15 Forward Assist AssemblyAr15 Ejection Port Dust Cover Assembly / KitAr15 Roll Pin for Gas Block / Tube

    $12.99

    $9.95

    $12.99

    $3.99

    $0.99

     
    Ar15 Upper Parts Kit Dust Cover And Forward Assist Assembly Wolff Extra-Power Heavy Hammer Spring for 7.62x39, etc Firing Pin Retaining Pin / Retainer , Ar15 / M16
    Ar15 Upper Parts Kit Dust Cover And Forward Assist AssemblyWolff Extra-Power Heavy Hammer Spring for 7.62x39, etcFiring Pin Retaining Pin / Retainer , Ar15 / M16

    $14.99

    (1)

    $5.99

    $1.35

     
    Shockwave Blade Pistol Stabilizer, Black or FDE Maxim CQB Compact PDW Stock - Black Mil Spec 6-position Stock / Buffer Tube Kit
    Shockwave Blade Pistol Stabilizer, Black or FDEMaxim CQB Compact PDW Stock - BlackMil Spec 6-position Stock / Buffer Tube Kit

    $128.95

    $48.95

    (4)

    $450.00

    $395.00

    $49.99

    $39.99

    (10)
     
    ETS Translucent Glock 17, 18, 19, 26, 34 - 9mm, 31 round mag Ar15 Mil Spec Carbine Buffer Tube Kit 1911 Hexagon / Honeycomb Pattern Grip Panels
    ETS Translucent Glock 17, 18, 19, 26, 34 - 9mm, 31 round magAr15 Mil Spec Carbine Buffer Tube Kit1911 Hexagon / Honeycomb Pattern Grip Panels

    $21.99

    $39.99

    $34.99

    (1)

    $39.99

     
    PMAG 30 AR/M4 GEN M2 MOE 5.56X45MM NATO Replacement Ar15 Gas Block Set Screws - Set of 2 Polymer Flip Up / Back-Up Sights
    PMAG 30 AR/M4 GEN M2 MOE 5.56X45MM NATOReplacement Ar15 Gas Block Set Screws - Set of 2 Polymer Flip Up / Back-Up Sights

    $12.95

    $9.95

    (1)

    $1.99

    $47.99

    $27.99

    (3)
     
    TF 1-4x28 IR Ar15 Scope with Cantilever QD Mount Blem Titanium Nitride TiN M16 / Ar15 MPI BCG 5.56/223
    TF 1-4x28 IR Ar15 Scope with Cantilever QD MountBlem Titanium Nitride TiN M16 / Ar15 MPI BCG 5.56/223test

    $124.99

    $119.99

    $229.00

    $125.00

    (1)

    $0.00

    (1)
     
    MSF T-Shirt
    MSF T-Shirt

    $16.99

    $13.99

     
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