Upper Receiver

Upper Receiver

Find the exact complete or stripped AR-15 upper receiver for your next build. We stock forged and billet uppers, cold hammer-forged barrels, low-profile gas blocks, and advanced bolt carrier groups (BCGs) engineered for extreme reliability and sub-MOA accuracy.

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  • Out of stock
    LMT Defense- Purchase the MRP-L MLOK 9.25" AR15 Upper Receiver #L7X1A get the Lower Receiver #M7SL for FREE

    LMT Defense- Purchase the MRP-L MLOK 9.25" AR15 Upper Receiver #L7X1A get the Lower Receiver #M7SL for FREE

    LMT Defense

    $989.00
    Upper Receiver:  The patented LMT monolithic rail platform (MRP) upper receiver, has a receiver and handguard that are made from a single piece of aerospace grade aluminum. The barrel is held in place with a proprietary locking system that utilizes...
    $989.00
    Qty in Cart: 0
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    $989.00
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  • Out of stock
    LMT Defense- Purchase the MRP-L MLOCK 13.25" AR15 Upper Receiver #L7Y1A get the Lower Receiver #M7SL for FREE

    LMT Defense- Purchase the MRP-L MLOCK 13.25" AR15 Upper Receiver #L7Y1A get the Lower Receiver #M7SL for FREE

    LMT Defense

    $1,045.00
    Upper Receiver: The patented LMT monolithic rail platform (MRP) upper receiver, has a receiver and handguard that are made from a single piece of aerospace grade aluminum. The barrel is held in place with a proprietary locking system that utilizes two...
    $1,045.00
    Qty in Cart: 0
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    $1,045.00
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  • Out of stock
    Ruger - 10/22 Stripped Aluminum Receiver - SCU-0129 Ruger - 10/22 Stripped Aluminum Receiver - SCU-0129

    Ruger - 10/22 Stripped Aluminum Receiver - SCU-0129

    Ruger

    $65.00
    This is a new Ruger factor stripped aluminum receiver compatible with 10/22 pattern firearms.  Black Stripped Made in the USA Note: These are stripped receivers so they will not come with any internal components. Being a serialized item, an...
    $65.00
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    $65.00
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  • Out of stock
    LMT Defense 5.56 Full Auto Piston Bolt Carrier Group - L7D3CP - Boss Firearms

    LMT Defense 5.56 Full Auto Piston Bolt Carrier Group - L7D3CP

    LMT Defense

    $468.00
    This is a new Lewis Machine & Tool 5.56 piston AR15 bolt carrier group for use in piston-operated systems. It features optimization for use in short-barreled rifles.
    $468.00
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    $468.00
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  • Out of stock
    Knight's Armament - Like New 5.56 QDC 3-Prong Flash Suppressor Kit - 1/2"-28 TPI - 30555-Like-New - 819064010944 - Boss Firearms - BossFirearms.com Knight's Armament - Like New 5.56 QDC 3-Prong Flash Suppressor Kit - 1/2"-28 TPI - 30555-Like-New - 819064010944 - Boss Firearms - BossFirearms.com

    Knight's Armament - Like New 5.56 QDC 3-Prong Flash Suppressor Kit - 1/2"-28 TPI - 30555-Like-New

    Knights Armament Company

    $89.00
    These are in like-new condition, they were new rifle takeoffs. The KAC 3-Prong Flash Eliminator is an extremely effective flash suppressor design that also serves as a platform for attaching a Knight’s Armament Quick Disconnect Coupler (QDC) sound...
    $89.00
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    $89.00
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  • Out of stock
    Knight's Armament - DOD Surplus M16 M5 RAS Forend Assembly w/ No Rib Rail Panels - 98065-1-DOD - Boss Firearms - BossFirearms.com Knight's Armament - DOD Surplus M16 M5 RAS Forend Assembly w/ No Rib Rail Panels - 98065-1-DOD - Boss Firearms - BossFirearms.com

    Knight's Armament - DOD Surplus M16 M5 RAS Forend Assembly w/ No Rib Rail Panels - #98065-1-DOD

    Knights Armament Company

    $400.00
    DOD Surplus Stock KAC M5 RAS (Rail Adapter System) was developed for use on the US military's M16A4, and with hundreds of thousands of rails issued to date, it is one of the most battle proven designs available for the AR-15 platform. This non-free...
    $400.00
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    $400.00
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  • Out of stock
    Knight's Armament - DOD Surplus M16 M5 RAS Forend Assembly - 98065-DOD - Boss Firearms - BossFirearms.com Knight's Armament - DOD Surplus M16 M5 RAS Forend Assembly - 98065-DOD - Boss Firearms - BossFirearms.com

    Knight's Armament - DOD Surplus M16 M5 RAS Forend Assembly - #98065-DOD

    Knights Armament Company

    $400.00
    DOD Surplus Stock KAC M5 RAS (Rail Adapter System) was developed for use on the US military's M16A4, and with hundreds of thousands of rails issued to date, it is one of the most battle proven designs available for the AR-15 platform. This non-free...
    $400.00
    Qty in Cart: 0
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    $400.00
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  • LMT Defense - .308 Piston Bolt Carrier Group -  R-LM308DPS - 815415016658 - Boss Firearms - BossFirearms.com LMT Defense - .308 Piston Bolt Carrier Group -  R-LM308DPS - 815415016658 - Boss Firearms - BossFirearms.com

    LMT Defense - .308 Piston Bolt Carrier Group - R-LM308DPS

    LMT Defense

    MSRP: $762.00
    $706.50
    The LMT Defense .308 Piston Bolt Carrier Group (R-LM308DPS) is the large-frame 7.62x51mm NATO piston BCG designed for LMT's MRP-H piston-operated AR-10/MWS platform. Built with the same materials and design principles as LMT's acclaimed 5.56mm piston...
    MSRP: $762.00
    $706.50
    Qty in Cart: 0
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    MSRP: $762.00
    $706.50
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  • Out of stock
    On Sale
    VLTOR - MPX 12" Handguard w/ M-LOK System - #VWS-MPX-12

    VLTOR - MPX 12” Handguard w/MLock System - #VWS-MPX-12

    Vltor Weapon Systems

    Now: $188.96
    Was: $209.95
    Lightweight Easy to install Direct replacement for factory hand guard
    Now: $188.96
    Was: $209.95
    Qty in Cart: 0
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    Now: $188.96
    Was: $209.95
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  • VLTOR - Extended Length AK47 Handguard w/ M-LOK System - #CMRD-AKM-E - Boss Firearms - BossFirearms.com

    VLTOR - Extended Length AK47 Handguard W/ M-LOK System - #CMRD-AKM-E

    Vltor Weapon Systems

    $226.80
    The VLTOR CMRD AK Handguard is the first in many variations that VLTOR has planned for AK handguards. At this time it is offered in the “extended length” version but there will be lengths soon to accommodate carbine and mid-length variations...
    $226.80
    Qty in Cart: 0
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    $226.80
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  • Out of stock
    Sons of Liberty Gun Works - East India Starter Kit - 14.5" Barrel Complete Upper Receiver - 5.56 NATO - #EIC-14-5-CHF-556 - Bossfirearms.com

    SONS OF LIBERTY GUN WORKS - EAST INDIA STARTER KIT - 14.5” BARREL COMPLETE UPPER RECEIVER - 5.56 NATO - #EIC-14-5-CHF-556

    Sons of Liberty Gunworks

    MSRP: $575.00
    $546.25
    The East India Starter Kit is meant as a building block for any build you wish to do. It is built with Hidden high quality components. At Sons of Liberty Gun Works they always tell their customers, its not what a rifle company tells you, it's what they...
    MSRP: $575.00
    $546.25
    Qty in Cart: 0
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    MSRP: $575.00
    $546.25
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  • Out of stock
    Sons of Liberty Gun Works - East India Starter Kit - 12.5" Barrel Complete Upper Receiver - 5.56 NATO - #EIC-12-5-CHF-556 - Bossfirearms.com

    SONS OF LIBERTY GUN WORKS - EAST INDIA STARTER KIT - 12.5” BARREL COMPLETE UPPER RECEIVER - 5.56 NATO - #EIC-12-5-CHF-556s

    Sons of Liberty Gunworks

    MSRP: $575.00
    $546.25
    The East India Starter Kit is meant as a building block for any build you wish to do. It is built with Hidden high quality components. At Sons of Liberty Gun Works they always tell their customers, its not what a rifle company tells you, it's what they...
    MSRP: $575.00
    $546.25
    Qty in Cart: 0
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    Price:
    MSRP: $575.00
    $546.25
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