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External Rifle Parts & Upgrades

External Rifle Parts & Upgrades (266 Results)

  • BCM-MK2RMS-M1T2

    Bravo Company Bravo Company | BCM MK2 Recoil Mitigation System | Mod 1 | 8 Position Buffer Tube Complete Assembly | Matte Finish | Black | Includes T2 Buffer | M16A4 Rifle Action Spring | MK2 Receiver Extension | QD End Plate | Castle nut | Fit

    $199.00
    $199.00 - $199.00
    $199.00
    $199.00
    $199.00 - $199.00
    $199.00

    Whether starting a new rifle build or upgrading an existing one the BCM MK2 recoil mitigation system offers less felt recoil while maintaining and ...

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  • BCM-MCMR-RP-FDE-5
    BCM-MCMR-RP-BLK-5
    Save $1.05 Save $0.00

    Bravo Company 5.5" MCMR Rail Panel Kit | M-LOK Compatible | 5 pack | Black

    $11.00
    $11.00 - $11.00
    $11.00
    $9.95
    $9.95 - $9.95
    $9.95

    Bravo Company's BCM MCMR 5.5"" Rail Panel Kit is a perfect fit for your BCM MCMR Handguard. Its ultra-slim and radiused surface allows a round hand...

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  • BCM-MK2-RE
    Backordered

    Bravo Company MK2 Receiver Extension | Fits AR | Buffer Tube | Matte Finish | Black

    $55.00
    $55.00 - $55.00
    $55.00
    $49.95
    $49.95 - $49.95
    $49.95

    BCM MK2 Receiver Extension for your AR15, M16, M4. Machined from 7075T6 and manufactured to Mil-Spec dimensions and specifications. Mil-Spec receiv...

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  • BCM-QRF-8-556-BLK
    BCM-QRF-7-556-BLK
    Save $13.05 Save $0.00

    Bravo Company Quad Rail | Picatinny Rail | Fits AR Rifles | 7" | Black

    $220.00
    $220.00 - $220.00
    $220.00
    $206.95
    $206.95 - $206.95
    $206.95

    Bravo Company's BCM QRF-7 (Quad Rail Free Float Handguard) features the same industry leading barrel nut and lock up design as originally introduce...

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  • BCM-RAIDER-M13-556-BLK
    Save $16.00 Save $0.00

    Bravo Company RAIDER-M M-LOK Rail | Fits AR Rifles | 13" Long | Black

    $265.00
    $265.00 - $265.00
    $265.00
    $249.00
    $249.00 - $249.00
    $249.00

    The RAIDER is built using a double wall extrusion creating one of the most rigid free-float platforms in its weight class. Its unique architecture ...

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  • BCM-STOCK-HARDWARE-KIT
    Backordered

    Bravo Company Stock Hardware Mount Kit | Fits AR Rifles | Mil-Spec Buffer Tube | Stock Kit Contains Buffer | Tube | Spring | & Hardware | Black

    $65.00
    $65.00 - $65.00
    $65.00
    $57.95
    $57.95 - $57.95
    $57.95

    Bravo Company's BCM Mil-Spec Carbine Stock Hardware Mounting Kit for AR-15's contains all the necessary parts to mount your Mil-Spec dimension stoc...

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  • BCM-RAIDER-M10-556-BLK
    Save $16.00 Save $0.00

    Bravo Company RAIDER-M M-LOK Rail | Fits AR Rifles | 10" Long | Black

    $255.00
    $255.00 - $255.00
    $255.00
    $239.00
    $239.00 - $239.00
    $239.00

    The RAIDER is built using a double wall extrusion creating one of the most rigid free-float platforms in its weight class. Its unique architecture ...

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  • BCM-QRF-12-556-BLK
    Backordered

    Bravo Company Quad Rail | Picatinny Rail | Fits AR Rifles | 12" | Black

    $240.00
    $240.00 - $240.00
    $240.00
    $224.95
    $224.95 - $224.95
    $224.95

    Bravo Company's BCM QRF-12 (Quad Rail Free Float Handguard) features the same industry leading barrel nut and lock up design as originally introduc...

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  • BCM-QRF-10-556-BLK
    Save $15.05 Save $0.00

    Bravo Company Quad Rail | Picatinny Rail | Fits AR Rifles | 10" | Black

    $230.00
    $230.00 - $230.00
    $230.00
    $214.95
    $214.95 - $214.95
    $214.95

    Bravo Company's BCM QRF-10 (Quad Rail Free Float Handguard) features the same industry leading barrel nut and lock up design as originally introduc...

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  • BCM-QRF-9-556-BLK
    Backordered

    Bravo Company Quad Rail | Picatinny Rail | Fits AR Rifles | 9" | Black

    $225.00
    $225.00 - $225.00
    $225.00
    $211.95
    $211.95 - $211.95
    $211.95

    Bravo Company's BCM QRF-9 (Quad Rail Free Float Handguard) features the same industry leading barrel nut and lock up design as originally introduce...

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  • 01-005-10002
    Save $20.00 Save $0.00

    Daniel Defense Omega Rail | 9.0" | Fits Mid-Length Length | AR Rifles | 2 Piece Drop-In Free Float Rail System | Black

    $297.00
    $297.00 - $297.00
    $297.00
    $277.00
    $277.00 - $277.00
    $277.00

    Daniel Defense's OMEGA 9.0 Mid-Length Rail system is the most exciting rail system to hit the market in years! The Omega Rail is a free float rail ...

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  • 01-004-02383-011
    01-004-02383-006
    Save $40.00 Save $0.00

    Daniel Defense RIS III | 13" | Free Float M-LOK Handguard | Black | Fits AR Rifles with Front Sight Post

    $582.00
    $582.00 - $582.00
    $582.00
    $542.00
    $542.00 - $542.00
    $542.00

    The Daniel Defense RIS III Rail Interface System takes the proven design of Daniel Defense's two-piece RIS II rails-used by U.S. Special Operations...

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  • 01-004-08020-011
    01-004-08020-006
    Backordered

    Daniel Defense MK18 RIS II Rail | Free Float Forend | Fits AR Rifles | 9.55" | Black

    $582.00
    $582.00 - $582.00
    $582.00
    $542.00
    $542.00 - $542.00
    $542.00

    The Daniel Defense Rail Interface System (RIS II) was designed at the request of the United States Special Operations Command (SOCOM) for the SOPMO...

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  • 21-071-05177-011
    21-071-05177-006
    Backordered

    Daniel Defense Pistol Grip | Fits AR Rifles | Black

    $40.00
    $40.00 - $40.00
    $40.00
    $38.00
    $38.00 - $38.00
    $38.00

    Daniel Defense's Pistol Grip is designed with ergonomics and controllability in mind. It shares the angle of the classic 1911 pistol for the most n...

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  • 21-091-04179-011
    21-091-04179-006
    Backordered

    Daniel Defense Mil-Spec Collapsible Buttstock | Fits AR Rifles | Black

    $96.00
    $96.00 - $96.00
    $96.00
    $88.00
    $88.00 - $88.00
    $88.00

    Daniel Defense's Collapsible Mil-Spec Collapsible Buttstock is constructed of a proprietary blend of glass infused polymers and finished off with s...

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  • 21-067-05028-011
    21-067-05028-006
    Backordered

    Daniel Defense Vertical Foregrip | Fits Picatinny Rail | Black

    $40.00
    $40.00 - $40.00
    $40.00
    $38.00
    $38.00 - $38.00
    $38.00

    Daniel Defense's Vertical Foregrip Mil-Spec Plus Picatinny now includes soft touch rubber overmolding for enhanced grip wet or dry. Inside the grip...

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  • 01-005-10001
    Backordered

    Daniel Defense Omega Rail | 7.0" | Fits Carbine Length | AR Rifles | 2 Piece Drop-In Free Float Rail System | Black

    $271.00
    $271.00 - $271.00
    $271.00
    $251.00
    $251.00 - $251.00
    $251.00

    Daniel Defense's OMEGA Rail 7.0 Carbine rail system is the most exciting rail system to hit the market in years! The Omega Rail is a free float rai...

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  • MDT LSS Gen 3 | Competition Forend | Fits MDT LSS Gen 3 | Cerakote Finish | Black

    $249.99
    $249.99 - $249.99
    $249.99
    $249.99
    $249.99 - $249.99
    $249.99

    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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  • 110086-BLK

    MDT LSS Gen 3 | Carbine Buttstock Interface | Fits MDT LSS Gen 3 | Cerakote Finish | Black

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

    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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  • 110085-BLK

    MDT LSS Gen 3 | XTN Buttstock Interface | Fits MDT LSS Gen 3 | Cerakote Finish | Black

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

    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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  • MDT LSS Gen 3 | Rifle Chassis Base | Fits Remington 700 Long Action | Cerakote Finish | Black | Right Hand

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

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

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

    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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  • 109512-BLK

    MDT ACC Premier | Gen 2 | Rifle Chassis | Fits Remington 700 Short Action | Cerakote Finish | Black

    $1,099.99
    $1,099.99 - $1,099.99
    $1,099.99
    $1,099.99
    $1,099.99 - $1,099.99
    $1,099.99

    An all-round refresh to the industry-defining ACC Premier. The ACC Premier GEN2 borrows improvements made with the ACC Elite, such as the taller in...

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  • 106557-FDE
    106557-BLK

    MDT ACC Elite | Rifle Chassis | Cerakote Finish | Black | 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

    The MDT ACC Elite ensures that top-tier shooters reach the podium. This is a perfect fusion of design, engineering, and industry expertise. The end...

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  • 8901005
    8900039

    Sig Sauer Grip Module Assembly | Fits Sig Sauer P320X5 9mm | Full Size | Grip Weight/Funnel | Gray

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

    The Sig Sauer P320 TXG Grip Module uses tungsten-infused polymer that is then molded into the part. This patent-pending process results in a grip m...

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  • STOCK-X-FOLD-TELE-FDE
    STOCK-X-FOLD-TELE-BLK
    Backordered

    Sig Sauer Folding and Telescoping Stock | Fits Sig MCX/MPX | 1913 Interface | Black

    $249.99
    $249.99 - $249.99
    $249.99
    $249.99
    $249.99 - $249.99
    $249.99

    Sig Sauer factory replacement collapsible stock assembly installs easily on your MCX, MPX or other platforms with a receiver mounted 1913 rail inte...

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  • KIT-TRD-SIGHT-RAIL

    Sig Sauer Tread Sight Rail | M-LOK | Black

    $29.99
    $29.99 - $29.99
    $29.99
    $29.99
    $29.99 - $29.99
    $29.99

    Sig Sauer Tread factory 4-slot Picatinny rail section fits the M-LOK mounting slot interface. It is meant to be used on the M400 Tread rifle as a f...

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  • 8902056
    8900063

    Sig Sauer Grip Module Assembly | Fits Sig P320 Carry 9/40/357 | AXG | G10 Grip Panel

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

    Install your non-manual safety P320 FCU (firing control unit) into their newly developed AXG (Alloy X Grip) metal grip module to experience the uni...

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  • 8900036

    Sig Sauer Grip Module Assembly | Fits Sig Sauer P320X5 9mm | Full Size | Medium Grip | Gray

    $249.99
    $249.99 - $249.99
    $249.99
    $249.99
    $249.99 - $249.99
    $249.99

    The Sig Sauer P320 TXG Grip Module uses tungsten-infused polymer that is then molded into the part. This patent-pending process results in a grip m...

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  • 05-430B
    Backordered

    Geissele Automatics MK4 Federal | Super Modular Rail | 10" | M-LOK | Black | Barrel Nut Wrench Sold Separately (GEI-02-243) | Gas Block Not Included

    $400.00
    $400.00 - $400.00
    $400.00
    $400.00
    $400.00 - $400.00
    $400.00

    This is the same rail used to fulfill contracts for the Federal Bureau of Investigation (FBI). It's strength, modularity and M-Lok compatibility gi...

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  • 05-430S
    Backordered

    Geissele Automatics MK4 Federal | MK4 | Rail | Desert Tan | MLOK | AR15 | 10" | Product Finishes | Shade Variations and Other Imperfections Are Normal Due to the Manufacturing Process

    $425.00
    $425.00 - $425.00
    $425.00
    $425.00
    $425.00 - $425.00
    $425.00

    This is the same rail used to fulfill contracts for the Federal Bureau of Investigation (FBI). It's strength, modularity and M-Lok compatibility gi...

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  • 05-430ODG
    Backordered

    Geissele Automatics MK4 Federal | Rail | Olive Drab Green | MLOK | AR15 | 10"

    $408.00
    $408.00 - $408.00
    $408.00
    $408.00
    $408.00 - $408.00
    $408.00

    Geissele's Super Modular MK4 Rail is used by the Federal Bureau of Investigation due to its strength, modularity, and M-LOK compatibility. It featu...

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  • MAG593-BLK
    Save $0.85 Save $0.00

    Magpul Industries M-LOK Rail Section | Fits M-LOK Hand Guard | 11 Slots | Black

    $16.95
    $16.95 - $16.95
    $16.95
    $16.10
    $16.10 - $16.10
    $16.10

    Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Polymer Rail Sections provide a cost effective method of attaching variou...

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  • MAG594-BLK
    Backordered

    Magpul Industries AFG-2 M-LOK Adapter Rail | Fits M-LOK Compatible Hand Guards And Forends | Optimized Fits AFG-2 | Polymer | Black

    $9.95
    $9.95 - $9.95
    $9.95
    $9.45
    $9.45 - $9.45
    $9.45

    The Magpul AFG-2 M-LOK Adapter Rail is a polymer M-LOK accessory rail that is optimized for the attachment of the Magpul AFG-2 to all M-LOK compati...

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  • MAG592-BLK
    Save $0.80 Save $0.00

    Magpul Industries M-LOK Rail Section | Fits M-LOK Hand Guard | 9 Slots | Black

    $15.95
    $15.95 - $15.95
    $15.95
    $15.15
    $15.15 - $15.15
    $15.15

    Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Polymer Rail Sections provide a cost effective method of attaching variou...

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  • MAG591-BLK
    Save $0.75 Save $0.00

    Magpul Industries M-LOK Rail Section | Fits M-LOK Hand Guard | 7 Slots | Black

    $14.95
    $14.95 - $14.95
    $14.95
    $14.20
    $14.20 - $14.20
    $14.20

    Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Polymer Rail Sections provide a cost effective method of attaching variou...

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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