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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  • On Sale
    New - MKE -4 Roller for Bolt Head 7.96mm - Under-sized - HKP-22238 MKE -4 Roller for Bolt Head 7.96mm - Under-sized MKE HKP-22238
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    HK 90 Series Locking Roller for Bolt Head - 7.96mm

    MKE

    Now: $22.95
    Was: $28.95
    MKE -4 Roller for Bolt Head 7.96mm - Under-sized The proper roller size is essential for proper head spacing and bolt gap. Made in Turkey by MKE on HK tooling.  Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the...
    HKP-22238
    Now: $22.95
    Was: $28.95
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    Now: $22.95
    Was: $28.95
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  • On Sale
    Used - H&K MP5 40/10 Thread Protector Cap - Threaded 14x.75 - USED - HKP-00422-B HK MP5 Thread Protector Cap - .40 S&W, 10mm - 14x.75 - USED
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    HK MP5 Thread Protector Cap - .40 S&W, 10mm - 14x.75 - USED

    H&K Heckler & Koch

    Now: $34.95
    Was: $49.95
    H&K Heckler and Koch's Thread Protector Cap Threaded 14x.75 - USED for MP5 .40, 10 ONLY 4 UNITS AVAILABLE - AS PICTURED Priced for ONE cap - Condition Varies by Unit - Each unit Sold INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL...
    HKP-00422-B
    Now: $34.95
    Was: $49.95
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    Now: $34.95
    Was: $49.95
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  • Used - H&K G3/91 F/A Bolt Carrier - FMP - SURPLUS - HKP-22160 HK91, G3 Bolt Carrier - Full Auto - Surplus
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    HK91, G3 Bolt Carrier - Full Auto - Surplus

    H&K Heckler & Koch

    $129.95
    Surplus Full-Auto Steel Bolt Carrier for HK91, G3 Used full-auto steel bolt carrier for HK91 and G3 pattern rifles. Manufactured by HK, EBO, or FMP on original Heckler and Koch tooling. Compatible With: HK91, G3 In-spec. clones and custom builds
    HKP-22160-M
    $129.95
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    $129.95
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  • On Sale
    Used - H&K Heckler & Koch HK MP5 German 0,1,2 Burst Only Housing- Push Pin - USED - BLEMISHED - HKP-01015-B HK MP5 German 0,1,2 Burst Only Housing- Push Pin - USED - BLEMISHED
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    HK MP5 German 0,1,2 Burst Only Housing- Push Pin - USED - BLEMISHED

    H&K Heckler & Koch

    Now: $119.95
    Was: $179.95
    HK MP5 German 0,1,2 Burst Only Housing- Push Pin - USED - BLEMISHED CONDITION MAY VARY - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL...
    HKP-01015-B
    Now: $119.95
    Was: $179.95
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    Now: $119.95
    Was: $179.95
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  • On Sale
    Used - H&K G3/91 (.22LR) Caliber Conversion Kit - BLEMISHED - HKP-01147-B HK91, G3 Caliber Conversion Kit - .22LR - BLEMISHED
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    HK91, G3 Caliber Conversion Kit - .22LR - BLEMISHED

    H&K Heckler & Koch

    Now: $545.95
    Was: $945.95
    Heckler and Koch HK G3, HK91 .22LR Caliber Conversion Kit - BLEMISHED THESE KITS INCLUDE A BENT BARREL AND ONE MAGAZINE. BLEMISHED PARTS ARE SOLD AS IS. THIS KIT IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Convert any HK91 or HK...
    HKP-01147-B
    Now: $545.95
    Was: $945.95
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    Now: $545.95
    Was: $945.95
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  • New - H&K HK MR556 A4 Complete Upper w F/A & Ejection Door - HKP-21929 HK MR556 A4 Upper, Complete - Full Auto and Ejection Door
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    HK MR556 A4 Upper, Complete - Full Auto and Ejection Door

    H&K Heckler & Koch

    $845.95
    HK Heckler and Koch A4 Complete Upper with Full Auto Ejection Door for HK MR556 The HK MR556 A4 Complete Upper is a superior factory assembly that comes fully equipped with a forward assist and an ejection port door, providing unparalleled reliability...
    HKP-21929
    $845.95
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    $845.95
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  • On Sale
    New - B&T APR308 Deployment Bag - With Sling - HKP-21881 B&T APR308 Deployment Bag - With Sling
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    B&T APR308 Deployment Bag - With Sling

    B&T Brugger & Thomet

    Now: $199.95
    Was: $349.95
    B&T APR308 Deployment Bag - With Sling Hidden for years in an unmarked crate, these genuine B&T contracted deployment cases are perfect for keeping your valuable B&T APR rifle safe and secure.  The cases were made in Poland by NFM Group...
    HKP-21881
    Now: $199.95
    Was: $349.95
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    Now: $199.95
    Was: $349.95
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  • New - H&K HK21E/23E Inner & Outer Buffer Compression Springs - HKP-21856 HK21E, HK23E Compression Springs - Inner Buffer, Outer Buffer
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    HK21E, HK23E Compression Springs - Inner Buffer, Outer Buffer

    H&K Heckler & Koch

    $59.95
    H&K HK21E/23E Inner & Outer Buffer Compression Springs An unissued set of inner and outer buffer compression springs for your HK21E/23E buffer, sourced directly from HK Germany. Most HK21E/23E buffers in the U.S are first-generation, which use...
    HKP-21856
    $59.95
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    $59.95
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  • New - H&K HK G3 Front Sight Ring - HKP-21641
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    HK G3 Front Sight Ring

    H&K Heckler & Koch

    $7.95
    H&K HK G3 Front Sight Ring Factory HK replacement front sight ring. Compatible With: HK G3
    HKP-21641
    $7.95
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    $7.95
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  • Out Of Stock
    New - H&K HK MR762 Factory Flash Hider - 15x1 RH - HKP-21481 HK MR762 Factory Flash Hider - 15x1 RH

    HK MR762 Factory Flash Hider - 15x1 RH

    H&K Heckler & Koch

    $54.95
    H&K HK MR762 Factory Flash Hider - 15x1 RH Factory flash hider with 15x1 right-hand threads. Perfect for completing a build or replacing a worn or missing part. Compatible With: HK MR762  
    HKP-21481
    $54.95
    Out Of Stock
    Qty in Cart: 0
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    $54.95
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  • On Sale
    New - TPM Acorn Bolt Knob – Black - HKP-20902 Bolt Knob - Acorn
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    Bolt Knob - Acorn

    Tactical Precision MFG

    Now: $19.95
    Was: $37.99
    TPM Acorn Bolt Knob These bolt knobs can dress up any rifle with a 5/16×24 threaded bolt handle.  Specifications: Dimensions:1.5″ x 7/8″ x 7/8″ Weight: 2 oz. Threading: 5/16x24
    HKP-20902
    Now: $19.95
    Was: $37.99
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    Now: $19.95
    Was: $37.99
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  • On Sale
    New - TPM - Remington 700 - 30 MOA - Scope Base Long Action -Tungsten - HKP-20772 Remington 700 - 30 MOA - Scope Base Long Action -Tungsten
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    Remington 700 - 30 MOA - Scope Base Long Action -Tungsten

    Tactical Precision MFG

    Now: $38.95
    Was: $76.99
    TPM Remington 700 Scope Base Long Action 30 MOA These tight tolerance, bomb proof scope rail allow the shooter to make best use of the scope's elevation adjustment for those long-range shots and engagements with 30 MOA options and will match factory...
    HKP-20772
    Now: $38.95
    Was: $76.99
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    Now: $38.95
    Was: $76.99
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