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 - HKP HK21E/23E Rear Sight Base - HKP-21467 HK21E, HK23E Rear Sight Base
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    HK21E, HK23E Rear Sight Base

    HKP HK Parts

    $38.95
    HKP HK21E/23E Rear Sight Base US manufactured billeted from solid ordnance grade bar stock. Each unit is precisely machined to factory tolerances.  Requires post installation machining to accommodate a scope. Compatible With: HK21E HK23E
    HKP-21467
    $38.95
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  • New - H&K HK G36, HK G36K, HK G36C Complete Bolt Head - HKP-00636 HK G36, G36K, G36C Bolt Head - Complete - Rare
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    HK G36, G36K, G36C Bolt Head - Complete - Rare

    H&K Heckler & Koch

    $599.95
    Heckler and Koch HK G36, G36K, G36C Complete Bolt Head Rare new German HK bolt head for the G36, G36K, and G36C. This is the correct factory bolt head needed when converting the SL8 to use double-stack G36 magazines. The assembly comes complete with all...
    HKP-00636
    $599.95
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  • Out Of Stock
    New - PTR HK G3/91 (7.62x51/.308) Match Barrel - Threaded 5/8x24 - HKP-19633 HK91, G3 Barrel - 7.62 / .308 - 18" - Threaded 5/8x24 - Match

    HK91, G3 Barrel - 7.62 / .308 - 18" - Threaded 5/8x24 - Match

    PTR

    $229.95
    PTR HK G3/91 (7.62x51/.308) Match Barrel - Threaded 5/8x24 This new PTR-91 US-manufactured 18" heavy profile match grade barrel is perfect for new builds and counts as one US-made compliant part. It features the proper fluted chambers for HK G3/91 rifles...
    HKP-19633
    $229.95
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  • New - H&K HK MR556/MR762/416 Semi Auto Axle For Selector Lever - HKP-15433 HK416, MR556, MR762 Selector Lever Axle- Semi Auto
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    HK416, MR556, MR762 Selector Lever Axle- Semi Auto

    H&K Heckler & Koch

    $44.95
    H&K HK MR556/MR762/416 Semi Auto Axle For Selector Lever HK German safe, semi selector axle for the MR 556 & HK 416 family of firearms. All steel construction. Compatible With: HK MR556 HK 416 HK MR762
    HKP-15433
    $44.95
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  • Out Of Stock
    New - H&K 30 Round HK416/MR556 Spring - Magazine - HKP-13483

    HK416, MR556 Magazine Spring - 30 Round

    H&K Heckler & Koch

    $12.95
    HK German HK MR556 & HK 416 Magazine Spring  
    HKP-13483
    $12.95
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  • New - H&K G36/SL8 (5.56/.223) Cocking Handle Axle Pin - HKP-01877
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    HK G36, SL8 Cocking Handle Axle Pin

    H&K Heckler & Koch

    $11.95
    HK German G36 & SL8 Cocking Handle Axle Pin This is the rivet pin that is used to attach the swiveling cocking handle to the body of the carrier. These can be replaced as they break and wear.  Compatible With: HK G36 HK SL8
    HKP-01877
    $11.95
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  • Out Of Stock
    New - H&K 23E (5.56/.223) Bolt Carrier - HKP-00330 HK23E Bolt Carrier

    HK23E Bolt Carrier

    H&K Heckler & Koch

    $799.95
    New HK German 23E .223 / 5.56 Bolt Carrier Date coded and marked HK23-E. These are the last HK23E carriers that HK Germany has left. We are told that once these are gone, there will be no more. They are a great spare part to have, and they are getting...
    HKP-00330
    $799.95
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  • New - HKP MP5 40/10 30 Round Magazine Body - HKP-16508 HK MP5, MP5K Magazine Body - .40 S&W / 10mm - 10 Round - Straight
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    HK MP5, MP5K Magazine Body - .40 S&W / 10mm - 10 Round - Straight

    HKP HK Parts

    $29.95
    HKP MP5 40/10 30 Round Magazine Body New US Made MP5 40/10 30 Round Magazine Housing Body. Each magazine body comes black in color. Each body counts as one US made compliant part and is a great item to have on hand to replace other junk mag bodies or...
    HKP-16508
    $29.95
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  • New - HKP Tactical Rail - 2" - HK91/93 - HKP-02527 HK91, HK93 Rail - Tactical - 2"
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    HK91, HK93 Rail - Tactical - 2"

    HKP HK Parts

    $16.95
    HKP HK Parts 2" Tactical Rail  for HK91, PTR 91, and the HK93 (with tactical grip) The six mounting screws are also included with each rail. This rail will fit on either the left or right side or the bottom of the PTR and HK91/93 tactical handguards...
    HKP-02527
    $16.95
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  • New - H&K HK94 SD Style Barrel Shroud - HKP-02100
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    HK94 Barrel Shroud - SD Style

    H&K Heckler & Koch

    $99.95
    Heckler and Koch HK94 SD Style Barrel Shroud Features: Fits all factory HK94 rifles or barrels Made to factory German HK94 specs.  Designed to cover the 16" barrel Provides a neat SD style look without the cost of a full conversion Made of...
    HKP-02100
    $99.95
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  • New - Strike Industries QD & Sling Hook Sling Attachement - HKP-17381
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    QD and Sling Hook Sling Attachement

    Strike Industries

    $29.95
    Ambush QD Sling Loop The Strike Industries Ambush low profile sling loop is the lowest profile sling loop designed for the MIL-STD-1913 rail. Made of solid steel, its unique locking bar design system allows for it to be lightweight and durable. Because...
    HKP-17381
    $29.95
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  • On Sale
    New - JMAC G36/HK33 Compensator 15F KeyMount (KeyMicro) - HKP-21254 HK G36, HK33 Compensator - 15x1 RH - KeyMount (KeyMicro)
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    HK G36, HK33 Compensator - 15x1 RH - KeyMount (KeyMicro)

    JMAC Customs

    Now: $59.95
    Was: $99.95
    JMAC G36/HK33 (5.56/.223) Recoil Reduction Device - 2 Port Compensator 15-1 Threads - KeyMount (KeyMicro) Can be permanently attached to a 14.5" barrel to achieve 16" OAL. Compatible With: HK G36C (NOT compatible with first gen. HK G36C & Tommy...
    HKP-21254
    Now: $59.95
    Was: $99.95
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