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External Rifle Parts & Upgrades

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  • Save $12.00 Save $0.00

    SB Tactical SB MINI BRACE

    $59.99
    $59.99 - $59.99
    $59.99
    $47.99
    $47.99 - $47.99
    $47.99

    SB MINI BRACE, BLK, SBT LOGO

  • 114484-FDE
    114484-BLK

    MDT SRS-XF Premier | Folding Stock | Fits MDT XTN Stock Interface | Black

    $499.99
    $499.99 - $499.99
    $499.99
    $499.99
    $499.99 - $499.99
    $499.99

    The MDT SRS-XF Premier Folding Buttstock is designed to let you create a compact rifle system - for long hikes or small spaces - that locks up soli...

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  • MDT LSS Gen 3 | The Tactical | Rifle Chassis | Fits Remington 700 Short Action | Cerakote Finish | Black | Right Hand

    $1,059.99
    $1,059.99 - $1,059.99
    $1,059.99
    $1,059.99
    $1,059.99 - $1,059.99
    $1,059.99

    Need one rifle that can do it all? Start here. The MDT LSS GEN3 Tactical Kit is built around flexibility, reliability, and rugged performance. Whet...

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  • Save $12.00 Save $0.00

    SB Tactical SOB BRACE

    $59.99
    $59.99 - $59.99
    $59.99
    $47.99
    $47.99 - $47.99
    $47.99

    SOB BRACE, BLK, SBT LOGO

  • 110071-BLK

    MDT LSS Gen 3 | Tactical Forend | Fits MDT LSS Gen 3 | Cerakote Finish | Black

    $199.99
    $199.99 - $199.99
    $199.99
    $199.99
    $199.99 - $199.99
    $199.99

    The MDT LSS GEN3-the most adaptable and customizable rifle chassis ever built. Whether you're building a competition-ready precision rifle, dialing...

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  • Save $40.00 Save $0.00

    SB Tactical TF1913 PSB

    $199.99
    $199.99 - $199.99
    $199.99
    $159.99
    $159.99 - $159.99
    $159.99

    TF1913 PSB, BLK, SBT LOGO, FOLDING TRIANGLE BRACE, 1913 HINGE

  • Save $12.00 Save $0.00

    SB Tactical SBM4 BRACE

    $59.99
    $59.99 - $59.99
    $59.99
    $47.99
    $47.99 - $47.99
    $47.99

    SBM4 BRACE, BLK, SBT LOGO

  • 106129-BCF
    Backordered

    MDT HNT-26 | Rifle Chassis | Matte Finish | Black w/Carbon Fiber | Folding Stock | ARCA Forend | Fits Remington 700 Short Action

    $1,599.99
    $1,599.99 - $1,599.99
    $1,599.99
    $1,599.99
    $1,599.99 - $1,599.99
    $1,599.99

    MDT Chassis Systems were designed for sports and tactical shooting. However over the years they found that their rifle chassis were often used in h...

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  • 106131-BCF
    Backordered

    MDT HNT-26 | Rifle Chassis | Matte Finish | Black w/Carbon Fiber | Folding Stock | ARCA Forend | Fits Remington 700 Long Action

    $1,699.99
    $1,699.99 - $1,699.99
    $1,699.99
    $1,699.99
    $1,699.99 - $1,699.99
    $1,699.99

    MDT Chassis Systems were designed for sports and tactical shooting. However over the years they found that their rifle chassis were often used in h...

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  • MDT LSS Gen 3 | The Competitor | Rifle Chassis | Fits Remington 700 Short Action | Cerakote Finish | Black | Right Hand

    $1,159.99
    $1,159.99 - $1,159.99
    $1,159.99
    $1,159.99
    $1,159.99 - $1,159.99
    $1,159.99

    If you're building a match rifle and want to skip the guesswork, this is it. The MDT LSS GEN3 Competition Kit takes the most modular rifle chassis ...

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  • 103572-BLK

    MDT M-LOK Arca Rail | 10.25" | Anodized Finish | Black | Aluminum Construction | Fits M-lok

    $69.99
    $69.99 - $69.99
    $69.99
    $69.99
    $69.99 - $69.99
    $69.99

    Securely attach your rifle to an ARCA mount with the MDT M-LOK ARCA Rail. Arca Swiss adapters have become the standard for attaching rifles to trip...

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  • 106013-BLK

    MDT XRS | Rifle Chassis | Matte Finish | Black | Fits Remington 700 Long Action

    $699.99
    $699.99 - $699.99
    $699.99
    $699.99
    $699.99 - $699.99
    $699.99

    The XRS Chassis is designed for shooters that want the fit and feel of a traditional shaped rifle stock with the benefits of a modern precision rif...

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  • 104690-FDE
    104689-FDE

    MDT XRS | Rifle Chassis | Matte Finish | Flat Dark Earth | Fits Tikka T3

    $599.99
    $599.99 - $599.99
    $599.99
    $599.99
    $599.99 - $599.99
    $599.99

    The XRS Chassis is designed for shooters that want the fit and feel of a traditional shaped rifle stock with the benefits of a modern precision rif...

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  • 105827-FDE

    MDT Field Stock | Rifle Chassis | 6061 Aluminum Core | Overmolded Polymer Body | AICS Magazine Compatible | Flat Dark Earth | Fits Tikka T3 Short Action

    $299.99
    $299.99 - $299.99
    $299.99
    $299.99
    $299.99 - $299.99
    $299.99

    Get more accuracy out of your factory rifle by upgrading with the Field Stock. The traditionally shaped polymer stock provides comfort and warmth i...

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  • 103642-ODG

    MDT ORYX | Rifle Chassis | Cerakote Finish | Olive Drab Green | Fits Savage Long Action (Not Axis)

    $549.99
    $549.99 - $549.99
    $549.99
    $549.99
    $549.99 - $549.99
    $549.99

    The ORYX Sportsman Chassis was designed to be the best all-around aftermarket stock replacement for people wanting to enhance their accuracy. It's ...

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  • RS-RAIL-3M

    Arisaka Defense Rail Slider - Picatinny Rail M-Lok - 3 Slot - Fits M-LOK - Integrated QD Mount - Anodized Finish - Black

    $50.00
    $50.00 - $50.00
    $50.00
    $50.00
    $50.00 - $50.00
    $50.00

    Make Picatinny Great Again with Arisaka's precision machined 1913 Picatinny Rails, designed specifically to be used with the Arisaka Rail Slider. T...

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  • 103568-BLK

    MDT M-LOK Arca Rail | 7" | Anodized Finish | Black | Aluminum Construction | Fits M-lok

    $59.99
    $59.99 - $59.99
    $59.99
    $59.99
    $59.99 - $59.99
    $59.99

    Securely attach your rifle to an ARCA mount with the MDT M-LOK ARCA Rail. Arca Swiss adapters have become the standard for attaching rifles to trip...

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  • 105827-BLK
    105826-FDE

    MDT Field Stock | Rifle Chassis | 6061 Aluminum Core | Overmolded Polymer Body | AICS Magazine Compatible | Flat Dark Earth | Fits Howa 1500 Short Action/Weatherby Vanguard Short Action

    $299.99
    $299.99 - $299.99
    $299.99
    $299.99
    $299.99 - $299.99
    $299.99

    Get more accuracy out of your factory rifle by upgrading with the Field Stock. The traditionally shaped polymer stock provides comfort and warmth i...

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  • 100-357
    100-356
    Save $30.49 Save $0.00

    Reptilia Handguard - M-LOK - 10.5" - Anodized Finish - Black - Fits AR15 Rifles

    $304.95
    $304.95 - $304.95
    $304.95
    $274.46
    $274.46 - $274.46
    $274.46

    Introducing the Reptilia handguard featuring patented turn buckle technology. The handguard is compatible with all M4 upper receivers, and comes in...

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  • 102856-FDE
    102856-BLK

    MDT SCS | Skeleton Carbine | Stock Kit | Matte Finish | Black | Fits MDT Carbine Stock Interface

    $369.99
    $369.99 - $369.99
    $369.99
    $369.99
    $369.99 - $369.99
    $369.99

    A high-performance buttstock with maximum versatility and strength, the SCS boasts the highest level of tool-less adjustability and ergonomics. KE...

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  • 100-340
    100-339
    Save $31.99 Save $0.00

    Reptilia Handguard - M-LOK - 15" - Anodized Finish - Black - Fits AR15 Rifles

    $319.95
    $319.95 - $319.95
    $319.95
    $287.96
    $287.96 - $287.96
    $287.96

    Introducing the Reptilia handguard featuring patented turn buckle technology. The handguard is compatible with all M4 upper receivers, and comes in...

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  • 102669-BLK

    MDT SRS Standard | Skeleton | Stock Kit | Matte Finish | Black | Fits MDT Fixed Stock Interface

    $399.99
    $399.99 - $399.99
    $399.99
    $399.99
    $399.99 - $399.99
    $399.99

    Toolless adjustment of the MDT Skeleton Rifle Stock elevates the comfort and performance of the shooter. Horizontal, vertical and cant adjustment t...

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  • 100-020
    Save $18.99 Save $0.00

    Reptilia LINK - Stock Adapter - Black - Magpul Zhukov folding stock Included - Fits CZ Scorpion EVO 3

    $189.95
    $189.95 - $189.95
    $189.95
    $170.96
    $170.96 - $170.96
    $170.96

    Introducing the LINK(TM) for CZ Scorpion. Originally manufactured by Side Project, LLC in 2016, Reptilia is bringing the design back to life as par...

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  • 100-142
    100-141
    Save $15.99 Save $0.00

    Reptilia RECC-E - Rifle Stock - Fits AR Buffer Tube - Black - Includes Receiver Extension

    $159.95
    $159.95 - $159.95
    $159.95
    $143.96
    $143.96 - $143.96
    $143.96

    Introducing the RECCE Carbine Stock by Reptilia! After more than two years of development and testing, Reptilia is proud to announce the RECCE Stoc...

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  • 100-337
    Save $31.49 Save $0.00

    Reptilia Handguard - M-LOK - 13" - Anodized Finish - Flat Dark Earth - Fits AR15 Rifles

    $314.95
    $314.95 - $314.95
    $314.95
    $283.46
    $283.46 - $283.46
    $283.46

    Introducing the Reptilia handguard featuring patented turn buckle technology. The handguard is compatible with all M4 upper receivers, and comes in...

    View full details
  • 100-143
    Backordered

    Reptilia RECC-E - Stock Adapter - Black - AR Rifles

    $169.95
    $169.95 - $169.95
    $169.95
    $152.96
    $152.96 - $152.96
    $152.96

    Introducing the RECCE Carbine Stock by Reptilia! After over two years of development and testing, Reptilia proudly announces the RECCE Stock for AR...

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  • 100-331
    100-330
    Save $29.99 Save $0.00

    Reptilia Handguard - M-LOK - 9.4" - Anodized Finish - Black - Fits AR15 Rifles

    $299.95
    $299.95 - $299.95
    $299.95
    $269.96
    $269.96 - $269.96
    $269.96

    Introducing the Reptilia handguard featuring patented turn buckle technology. The handguard is compatible with all M4 upper receivers, and comes in...

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  • the sig sauer mcx stock adapter in the color black and showing the underside where it will be screwed on to the ar15
    the sig sauer mcx stock adapter in the color black and is shown in a tilted view

    Sig Sauer MCX Stock Adapter: AR-15 Folding Stock Conversion Kit

    $179.99
    $179.99 - $179.99
    $179.99
    $179.99
    $179.99 - $179.99
    $179.99

    Sig Sauer MCX Stock Adapter: AR-15 Lower Conversion Kit for MCX Folding Stocks  The Sig Sauer MCX Stock Adapter Kit allows you to convert a stand...

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What People Like You Are Saying

11/10! The small touches made such a big impact, like the patch, stickers and jolly ranchers were something I am beyond grateful for! Amazing product! Great price, very much satisfied.

C. Nelson

If you want updates regularly, just shoot Atomic Defense a message. They always respond quickly and answer any questions you have and can clarify. (*Modified for read-ability and formatting.)

S. Stocker

It's comfortable, like 8.9/10. I'm happy I went with Atomic Defense. Genuine equipment you can trust your life with.(*Modified for read-ability and formatting.)

C. Flick