HK Rifle / SMG Parts

HK Rifle / SMG Parts

Elevate Your HK Rifle with Premium Parts – MP5, HK416, SP5, and More!

Enhance your HK rifle with top-notch parts and accessories. From HK MP5 and HK MP5K to HK SP5 and HK UMP or HK USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, HK SP5K, HK G36, or HK MP5 22, we have the Heckler and Koch rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.

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  • New - H&K G36/SL8 (5.56/.223) Bolt Group Fork - HKP-01859
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    G36, SL8 Bolt Group Fork

    H&K Heckler & Koch

    $12.95
    HK G36 & SL8 Bolt Group Fork For Cocking Handle  
    HKP-01859
    $12.95
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  • New - H&K G36/SL8 (5.56/.223) Barrel Retaining Nut - HKP-16341 HK G36, SL8  Barrel Retaining Nut - 5.56 / .223
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    HK G36, SL8 Barrel Retaining Nut - 5.56 / .223

    H&K Heckler & Koch

    $29.95
    HK G36 & SL8 Barrel Retaining Nut - German HK Compatible With: SL8 (all models and variants) G36E G36K G36C All other G36 Variants
    HKP-16341
    $29.95
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  • New - H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Notched Disk - Safe/Fire - HKP-19070 HK UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Notched Disk - Safe/Fire
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    HK UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Notched Disk - Safe/Fire

    $8.95
    HK Ratched Wheel, Notched Disk G36, SL8 0,1 (Safe & Fire) Only Compatible With: HK UMP HK USC HK G36 HK SL8 (0,1 or S,F only)
    HKP-19070
    $8.95
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  • New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Bolt Catch Spring - HKP-01900
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    HK UMP, USC Bolt Catch Spring

    H&K Heckler & Koch

    $8.95
    HK UMP & USC Bolt Catch Spring Compatible With: HK UMP HK USC
    HKP-01900
    $8.95
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  • Out Of Stock
    New - H&K 21 (7.62x51/.308) Feed Mechanism Pawl - HKP-02071

    HK 21 (7.62x51/.308) Feed Mechanism Pawl

    H&K Heckler & Koch

    $69.95
    HK 21E & M13 Feed Mechanism Pawl
    HKP-02071
    $69.95
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  • New - H&K 91/93/33/53/G3 (5.56/.223) & (7.62x51/.308) Internal Buffer With Break Springs - HKP-17424
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    HK33, HK53, HK93, HK91, G3 Internal Buffer With Break Springs

    H&K Heckler & Koch

    $17.95
    HK German G3, 91, PTR & HK 33, 93 Internal Buffer Brake Spring New HK German Brake Springs for the standard buffer found on the HK G3, 91, PTR & HK93, 33, 53 rear stocks. Compatible With: All standard A2 fixed stock buffers
    HKP-17424
    $17.95
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  • New - B&T HK 93/33 (5.56/.223) Tri-Rail Handguard - HKP-16868 HK33, HK53, HK93 Tri-Rail Handguard
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    HK33, HK53, HK93 Tri-Rail Handguard

    B&T Brugger & Thomet

    $369.95
    B&T Handguard 3x NAR for HK 93, 33 with Detachable Side Rails Specifications: Color: Black Height max: 48.8 mm Length max: 243.5 mm Length of right rail: 97 mm Length of left rail: 97 mm Length of bottom rail: 243.5 mm Material: Aluminum NATO...
    HKP-16868
    $369.95
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    $369.95
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  • New - H&K (5.56/.223) & (7.62x51/.308) Rifle Blank Firing Adapter- HK Barrels - HKP-15593 HK Barrel Adapter - Blank Firing - 5.56 / .223 - 7.62x51 / .308
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    HK Barrel Adapter - Blank Firing - 5.56 / .223 - 7.62x51 / .308

    H&K Heckler & Koch

    $39.95
    H&K (5.56/.223) & (7.62x51/.308) Rifle Blank Firing Adapter- HK Barrels German blank firing adapter used from the German military. Best quality & price in the country by the best makers of US made HK components available anywhere. Compare...
    HKP-15593
    $39.95
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    $39.95
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  • New - RCM HK33K (5.56/.223) Barrel - Threaded 15x1 - HKP-02319 HK33K Barrel - .556 / .223 - 12.7" - Threaded 15x1
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    HK33K Barrel - .556 / .223 - 12.7" - Threaded 15x1

    RCM

    $234.95
    RCM HK33K (5.56/.223) Barrel - Threaded 15x1 Enhance your HK33K with the RCM 12.7" barrel, crafted from cold hammer-forged steel. The nitride finish provides exceptional corrosion and wear resistance, and the fully fluted chamber meets stringent HK...
    HKP-02319
    $234.95
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    $234.95
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  • New - H&K MP5 40/10 High Impulse Locking Piece #25 - HKP-00437
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    HK MP5 40/10 High Impulse Locking Piece #25

    H&K Heckler & Koch

    $229.95
    New HK German MP5 40 or MP5 10mm High Impulse Locking Piece Marked #25 This is the 60-degree locking piece that is used for high-impulse ammo, commonly found in +P or +P+ ammo. This locking piece is needed to cycle these hot loads without excessive...
    HKP-00437
    $229.95
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  • New - B&T HK MP5K/SP5K/SP89 9mm Barrel - Threaded 1/2x32 - 3-Lug - HKP-17908 HK MP5K, SP89, SP5K Barrel - 9mm - 3 Lug - Threaded 1/2x32
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    HK MP5K, SP89, SP5K Barrel - 9mm - 3 Lug - Threaded 1/2x32

    B&T Brugger & Thomet

    $399.95
    B&T HK MP5K/SP5K/SP89 9mm Barrel - Threaded 1/2x32 - 3-Lug New from B&T Switzerland, this cold hammer-forged (CHF) and nitrided barrel is specifically designed for the HK SP5K. Manufactured to exact HK factory specifications, it features a...
    HKP-17908
    $399.95
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    $399.95
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  • New - CFG MP5 Low Profile Rear Picatinny Sight Base - 10 Slot - HKP-18321 HK MP5, SP5K, HK94, SP89 Rear Sight Picatinny Base - Low Profile - 10 Slot
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    HK MP5, SP5K, HK94, SP89 Rear Sight Picatinny Base - Low Profile - 10 Slot

    CFG

    $119.95
    CFG MP5 Low Profile Rear Picatinny Sight Base - 10 Slot The CFG mount allows the user to replace the German HK rear sight with a low profile picatinny optic mount.  Made in the USA to German specifications. Compatible With: HK MP5, HK94 MP5K,...
    HKP-18321
    $119.95
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    $119.95
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