AR15 Uppers and Upper Parts

AR-15 Uppers and Upper Parts to fit Milspec AR15, M16, and M4 Firearms.

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  • AR-15 Buffer Tube Assembly A1/A2 Rifle Length
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    E. Arthur Brown Company

    AR-15 Buffer Tube Assembly A1/A2 Rifle Length

    $39.95
    $29.95
    Our Mil-Spec Rifle Length Buffer Tube Kit consists of a 10" fixed position buffer tube, heavy 5.6 oz buffer assembly and an 11.5" pre-loaded steel spring. The buffer tube is made of T6-6061 aluminum and is designed to fit any A1/A2 fixed position...
    127-TBS-L
    $39.95
    $29.95
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    $29.95
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  • 127-GB936 AR-15 Gas Block Low Profile .936 Steel
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    E. Arthur Brown Company

    AR-15 Gas Block Low Profile .936 Steel

    $19.95
    $16.95
    AR-15 Gas Block – Low Profile .936" Steel Designed for larger-diameter barrels and compact builds, this .936" Low Profile Gas Block delivers strength and simplicity. Crafted from rugged 4150 steel with mil-spec specs and a non-reflective matte...
    127-GB936
    $19.95
    $16.95
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    $16.95
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  • 127-GB750LONG# AR-15 Gas Block Low Profile .936 Steel
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    E. Arthur Brown Company

    AR-15 Gas Block Long Low Profile .750 Steel

    $24.95
    $19.95
    .750 Low Profile Steel Gas Block – Includes Roll Pins & Wrench Engineered to keep your AR-15 build sleek and field-ready, this low profile steel gas block is a staple upgrade for anyone running .750” diameter barrels. Made from hardened...
    127-GB750LONG#
    $24.95
    $19.95
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    $19.95
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  • AR-15 Gas Block Low Profile .750 dia steel
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    E. Arthur Brown Company

    AR-15 Gas Block .750 Low Profile Steel

    $19.95
    $12.95
    This is a standard AR-15 Micro Sized Gas Block. Designed with the minimum profile to fit under nearly any handguard system, it snugly fits standard .750 diameter barrels. Has a shallow "cut" mark in the front face for those who want to do witness marking...
    127-GB01-L
    $19.95
    $12.95
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    $12.95
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  • AR-15 Tactical Charging Handle
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    E. Arthur Brown Company

    AR-15 Tactical Charging Handle

    $16.95
    $12.95
    A Standard AR-15 Charging Handle. Mil-Spec 6061-T6 Aircraft Aluminum Smooth Operation under Extreme Conditions Black Finish Fits: AR-15 E. Arthur Brown Company, Inc 4088 County Road 40 NW, Garfield, MN 56332
    127-CH223
    $16.95
    $12.95
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    $16.95
    $12.95
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  • AR-10/LR-308 M-Lok 12" Super Slim Free Float Handguard
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    E. Arthur Brown Company

    AR-10/LR-308 M-Lok 12" Super Slim Free Float Handguard

    $129.95
    $124.95
    DPMS COMPATIBLEAR-10/LR-308 M-Lok 12" Super Slim Free Float Handguard.Features:Matte Black FinishM-LOK SlotsInside Diameter: 1.5"12" LengthAircraft Grade AluminumAnti-Rotation TabsOne Piece Free Float DesignHybrid Cut Picatinny Top RailDPMS Low Pattern...
    196-FML308-TC-R-12C#
    $129.95
    $124.95
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    $124.95
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  • AR-15 12" M-Lok Super Slim Light Free Float Handguard (MADE IN USA)
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    E. Arthur Brown Company

    AR-15 12" M-Lok Super Slim Light Free Float Handguard (MADE IN USA)

    $109.99
    USA Made 12 Inch Super Slim Light M-Lok Free Float Handguard Includes barrel nut and necessary hardware   Features: Solid 7075-T6 Aluminum Super Lightweight design Hybrid Picatinny/Keymod Top Rail Made in USA One-Piece Free Float Design and...
    196-FMLUS-12D
    $109.99
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  • On Sale
    AR10 308 Bolt Assembly
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    E. Arthur Brown Company

    AR-10 Bolt Assembly LR-308 Nickel Boron - DPMS Gen 1 Compatible.

    $139.00
    $109.99
    $139.00
    AR10/ LR308 Bolt Assembly, Nickel Boron Finish.- Replaces your factory bolt assembly and fits into your Bolt Carrier. Compatible with all AR10/LR308 DPMS Gen 1 specs but made better with superior materials and production processes. Our bolts are made...
    199-UP049
    $139.00
    $109.99
    $139.00
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    $139.00
    $109.99
    $139.00
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  • On Sale
    AR15 Bolt Assembly

    E. Arthur Brown Company

    AR15/M16 Bolt Assembly 223/5.56 NATO Nickel Boron

    $119.00
    $79.00
    $89.00
    AR15/ M16 Bolt Assembly, Nickel Boron Finish.  Replaces your factory bolt head assembly and fits into your Bolt Carrier. Compatible with all AR15/M16 milspecs but made better with superior materials and production processes. Our bolts are made with...
    199-UP053
    $119.00
    $79.00
    $89.00
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    $119.00
    $79.00
    $89.00
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  • AR15 Bolt Carrier Group Black Nitride 6.8 SPC, 400 Legend
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    E. Arthur Brown Company

    AR15 Bolt Carrier Group Black Nitride 6.8 SPC

    $89.95
    6.8 Rem SPC AR15 Bolt Carrier Group Shot Peened Black Nitride Finish w/No Logo Fits 6.8 Rem SPC, 400 Legend, 224 Valkyrie, etc.    Precision machined complete BCG (Bolt Carrier Group) with Black Nitride finish for excellent durability and...
    195-DA-506
    $89.95
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  • AR15 Bolt Carrier Group Black Nitride 6.5 Grendel Type II
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    E. Arthur Brown Company

    AR15 Bolt Carrier Group Black Nitride 6.5 Grendel Type II

    $79.95
    Black Nitride AR15 Bolt Carrier Group Shot Peened Black Nitride Finish w/No Logo Fits 6.5 Grendel Type II, 6 ARC, etc.    Precision machined complete BCG (Bolt Carrier Group) with Black Nitride finish for the excellent durability and...
    195-DA-528
    $79.95
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  • AR15 Bolt Carrier Group Black Nitride 223/5.56
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    E. Arthur Brown Company

    AR15 Bolt Carrier Group Black Nitride 223/5.56

    $69.95
    Black Nitride AR15 Bolt Carrier Group Shot Peened Black Nitride Finish w/No Logo Fits 223 Rem, 5.56 NATO, 300 Blackout, 350 Legend, etc.    Precision machined complete BCG (Bolt Carrier Group) with Black Nitride finish for the excellent...
    195-DA-502
    $69.95
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    $69.95
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  • AR-15 Ambidextrous Charging Handle Black
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    E. Arthur Brown Company

    AR-15 Ambidextrous Charging Handle Black

    $19.95
    $16.95
    AR-15 Ambidextrous Charging Handle Black A very nice ambidextrous charging handle at an affordable price. Lightweight anodized black aluminum. E. Arthur Brown Company, Inc 4088 County Road 40 NW, Garfield, MN 56332
    127-CH-AMBI-ST
    $19.95
    $16.95
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    $19.95
    $16.95
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  • Nickel Boron AR15 Bolt Carrier Group Left Side Detail
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    E. Arthur Brown Company

    AR15 Bolt Carrier Group Nickel Boron .223/5.56

    $109.95
    Nickel Boron AR15 Bolt Carrier Group Shot Peened Nickel Boron Finish w/No Logo Fits 223, 5.56, 350 Legend, 300 Blackout, etc.    Precision machined complete BCG (Bolt Carrier Group) with Nickel Boron finish for the best lubricity, function,...
    195-DA-504
    $109.95
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    $109.95
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