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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  • Out Of Stock
    On Sale
    New - Titan Tactical HK SL8/G36 Ultra Low Profile Optic Top Rail V2 - HKP-99235 HK SL8, G36 Optic Mount - Ultra Low Profile - Picatinny Rail

    HK SL8, G36 Optic Mount - Ultra Low Profile - Picatinny Rail

    Now: $322.46
    Was: $599.95
    Titan Tactical HK SL8/G36 Ultra Low Profile Optic Top Rail V2 ONLY 2 UNITS AVAILABLE - AS PICTURED  DOES NOT INCLUDE HARDWARE. PRICE IS PER MAGAZINE - SOLD INDIVIDUALLY. Precision-machined 6061 aluminum optic rail for HK SL8 and G36 rifles. Sits...
    Now: $322.46
    Was: $599.95
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    Was: $599.95
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  • On Sale
    Used - Surefire HK G36K Handguard - Used - Rare - HKP-22210 HK G36K Handguard - LED Light - Used - Rare
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    HK G36K Handguard - LED Light - Used - Rare

    Surefire

    Now: $549.95
    Was: $1,349.95
    Surefire HK G36K Handguard - Used - Rare SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. This authentic Surefire handguard for the HK G36K is a rare find with only a few units available. A great collector’s...
    Now: $549.95
    Was: $1,349.95
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  • Out Of Stock
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    HK416, MR556 Bayonet Adapter - M27 Style HK416, MR556 Bayonet Adapter - M27 Style

    HK416, MR556 Bayonet Adapter - M27 Style

    H&K Heckler & Koch

    Now: $55.76
    Was: $61.95
    Heckler and Koch Bayonet Adapter HK416, MR556 for M27 Build OEM bayonet adapter for HK416 and MR556 rifles for M27-style builds. Mounts to the barrel assembly to accept a standard bayonet. Specifications Bayonet adapter only (roll pin sold...
    Now: $55.76
    Was: $61.95
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    Was: $61.95
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  • On Sale
    Used - H&K G3 SEF Steel Lower Housing - Push Pin - SURPLUS - HKP-22159 HK G3 Lower Housing - SEF - Steel - Push Pin - SURPLUS
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    HK G3 Lower Housing - SEF - Steel - Push Pin - SURPLUS

    H&K Heckler & Koch

    Now: $44.96
    Was: $49.95
    H&K G3 SEF Steel Lower Housing - Push Pin - SURPLUS Priced for ONE Housing Unit- Condition Varies by Unit - Sold Individually UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE Used German-made SEF steel lower housing for the G3...
    Now: $44.96
    Was: $49.95
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  • On Sale
    New - H&K MP5 40/10 Standard 8mm Roller - BLEMISHED - HKP-00338-B HK MP5 40/10 Standard 8mm Roller - BLEMISHED
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    HK MP5 40/10 Standard 8mm Roller - BLEMISHED

    H&K Heckler & Koch

    Now: $9.71
    Was: $20.95
    H&K MP5 40/10 Standard 8mm Roller - BLEMISHED MEASURED 8.00mm ROLLER MARKED INCORRECTLY. PACKAGING MAY NOT REFLECT PRODUCT. CONDTION MAY VARY. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL...
    Now: $9.71
    Was: $20.95
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  • On Sale
    Used - H&K MP5 3 Position Burst (0,1,3 Pictogram) Trigger Housing - Push Pin - USED - BLEMISHED - HKP-02697-BL-B
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    HK MP5 3 Position Burst (0,1,3 Pictogram) Trigger Housing - Push Pin - USED - BLEMISHED

    H&K Heckler & Koch

    Now: $93.71
    Was: $199.95
    H&K MP5 3 Position Burst (0,1,3 Pictogram) Trigger Housing - Push Pin - USED - BLEMISHED CONDITION MAY VARY. SEE PHOTOS. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES...
    Now: $93.71
    Was: $199.95
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  • Out Of Stock
    On Sale
    Used - H&K MP5 3 Position (0,1,F Pictogram) Navy Housing - Push Pin - USED - BLEMISHED - HKP-16065-B HK MP5 3 Position (0,1,F Pictogram) Navy Housing - Push Pin - USED - BLEMISHED

    HK MP5 3 Position (0,1,F Pictogram) Navy Housing - Push Pin - USED - BLEMISHED

    H&K Heckler & Koch

    Now: $142.46
    Was: $324.95
    H&K MP5 3 Position (0,1,F Pictogram) Navy Housing - Push Pin - USED - BLEMISHED CONDITION MAY VARY. SEE PHOTOS. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL...
    Now: $142.46
    Was: $324.95
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  • Out Of Stock
    On Sale
    New - MKE 30 Round AP53 Magazine - HKP-22088 Century Arms AP53 Magazine - 30 Round

    Century Arms AP53 Magazine - 30 Round

    MKE

    Now: $49.46
    Was: $54.95
    MKE 30 Round Magazine - Steel The MKE 30-Round Steel Magazine is a rugged, corrosion-resistant mag designed for the MKE 5.56 AP53 platform. Compatible With: Century Arms AP53 HK53 In-spec. clones and custom builds
    Now: $49.46
    Was: $54.95
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  • On Sale
    New - H&K G3/91 Rear Housing Insert - 2 1/4" - HKP-99165 HK G3/91 Rear Housing Insert - 2 1/4"
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    HK G3/91 Rear Housing Insert - 2 1/4"

    H&K Heckler & Koch

    Now: $7.46
    Was: $14.95
    H&K G3/91 Rear Housing Insert - 2 1/4" Genuine H&K rear insert designed to fit and mold onto the back of the G3/91 trigger housing. Compatible With: HK G3/91 THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE.  SALE IS...
    Now: $7.46
    Was: $14.95
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  • On Sale
    New - H&K MR556 A4/416 A5 1.3mm Gas Vent Screw - HKP-22044
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    HK416 A5, MR556 A4 Gas Vent Screw - 1.3mm

    H&K Heckler & Koch

    Now: $26.95
    Was: $29.95
    H&K MR556 A4/416 A5 1.3mm Gas Vent Screw The 1.3mm gas vent screw is the standard size installed at the factory on the MR556 A4. Compatible With: HK MR556 A4
    Now: $26.95
    Was: $29.95
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  • On Sale
    New - H&K MR556 A4/416 A5 1.2mm Gas Vent Screw - HKP-22043
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    HK416 A5, MR556 A4 Gas Vent Screw - 1.2mm

    H&K Heckler & Koch

    Now: $26.95
    Was: $29.95
    H&K MR556 A4/416 A5 1.2mm Gas Vent Screw German 1.2mm gas vent screw for MR556 A4. Provides less venting than the factory-installed 1.3mm screw. Compatible With: HK MR556 A4 HK416 A5
    Now: $26.95
    Was: $29.95
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  • On Sale
    New - H&K MR556 A4/416 A5 1.1mm Gas Vent Screw - HKP-22041
    Add to Cart

    HK416 A5, MR556 A4 Gas Vent Screw - 1.1mm

    H&K Heckler & Koch

    Now: $26.95
    Was: $29.95
    H&K MR556 A4/416 A5 1.1mm Gas Vent Screw German 1.1mm gas vent screw for MR556 A4. Provides less venting than the factory-installed 1.3mm screw. Compatible With: HK MR556 A4 HK416 A5
    Now: $26.95
    Was: $29.95
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