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 Hammer and Pressure Shank Pin - 90 Series - HKP-21854

    HK Hammer and Pressure Shank Pin - 90 Series

    H&K Heckler & Koch

    $3.95
    H&K Hammer and Pressure Shank Pin - 90 Series For pinned-style hammer and shanks, this pin securely holds the two components together. This original H&K production part has never been installed. Made...
    HKP-21854
    $3.95
    Qty in Cart: 0
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    $3.95
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  • New - JMAC Universal Picatinny 8" Stock with 1913 Folding Mech - HKP-21241-M Picatinny  8" Stock with 1913 Folding Mech

    Picatinny 8" Stock with 1913 Folding Mech

    JMAC Customs

    $304.90 - $309.90
    JMac 8" Stock with 0.275" Cheek Rise - 1913 Attachment Feautures: New Integrated Rubber Buttpad 2x Integrated QD Sling Socket 8" L
    HKP-21241-M
    $304.90 - $309.90
    Qty in Cart: 0
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  • On Sale
    New - HKP V51 Backplate - HKP-21201 HK V51 Backplate

    HK V51 Backplate

    HKP HK Parts

    Now: $74.96
    Was: $167.95
    HKP V51 Backplate HK Parts brings you a long lost part that was no longer available till now. The Vector Arms V51 firearms was one of the most aclaimed PDW of its time but replacement parts have...
    HKP-21201
    Now: $74.96
    Was: $167.95
    Qty in Cart: 0
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    Now: $74.96
    Was: $167.95
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  • New - Kaw Valley Precision .45 Mach 3-Lug Mount - HKP-19994 Omega K Mach 3-Lug Mount - .45 ACP

    Omega K Mach 3-Lug Mount - .45 ACP

    Kaw Valley Precision

    $89.99
    Kaw Valley Precision .45 Mach 3-Lug Mount   Fully captured, enclosed system designed for use with the KVP MACH Linear Comp system. By utilizing 1-1/8"x28 TP
    HKP-19994
    $89.99
    Qty in Cart: 0
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  • Out Of Stock
    New - F5 MFG 50 Round BT APC9, BT GHM9 9mm Drum Magazine - Black - HKP-18577 B&T APC9, GHM9 Drum Magazine - 50 Round - 9mm

    B&T APC9, GHM9 Drum Magazine - 50 Round - 9mm

    F5 MFG

    $168.95
    F5 MFG 50 Round 9mm Drum Magazine for B&T APC9 and B&T GHM9 The only one of its kind, Brugger & Thomet APC9 and GHM9 50 round drum magazine. Truly an incredible combination of quality and...
    HKP-18577
    $168.95
    Qty in Cart: 0
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  • New - H&K HK MR762/417/G28 Ejection Cover Axle Spring - HKP-16753

    HK417, MR762, G28 Ejection Port Cover Axle Spring

    H&K Heckler & Koch

    $9.95
    H&K HK MR762/417/G28 Ejection Cover Axle Spring New Hk German manufacture for the MR762 & HK 417 firearm. The spring is used on the axle and ejection port cover door to allow it to be closed and...
    HKP-16753
    $9.95
    Qty in Cart: 0
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    $9.95
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  • HK45 Thread Protector - .578x28 RH - Knurled HK45 Thread Protector - .578x28 RH - Knurled

    HK45 Thread Protector - .578x28 RH - Knurled

    HKP HK Parts

    $14.95
    HKP HK Parts HK45 Thread Protector - Threaded .578x28 RH - .45 ACP The new US-made .45 ACP tactical thread protector, the cap fits all HK45 full size & compact barrels threaded .578x28 RH thread. A...
    HKP-17623
    $14.95
    Qty in Cart: 0
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    $14.95
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  • New - H&K HK SL8 Cheek Piece Riser - HKP-01701 HK SL8 Buttstock Cheek Riser Piece

    HK SL8 Buttstock Cheek Riser Piece

    H&K Heckler & Koch

    $34.95
    Heckler and Koch HK German SL8 Stock Cheek Riser Piece Compatible with all HK SL8 models. Cheek piece for SL8-1 and SL8-6 rifles
    HKP-01701
    $34.95
    Qty in Cart: 0
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  • New - GG&G Picatinny to Harris Bipod Adapter - HKP-02307 Harris Bipod Adapter - Picatinny

    Harris Bipod Adapter - Picatinny

    GG&G

    $39.95
    Harris Bipod Adapter Made By GG&G Enables a Harris Bi-pod to attach to a mil-spec Picatinny rail. GG&G's AR-15 Harris Bipod Adapter is rugged and low profile. Features of the GG&G Bipod Adapter...
    HKP-02307
    $39.95
    Qty in Cart: 0
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  • New - HKP MP5 40/10 Bolt Hold Open Weldment Set Complete - HKP-17648

    HK MP5 Weldment Set - .40 S&W, 10mm

    HKP HK Parts

    $189.95
    HKP MP5 40/10 Bolt Hold Open Weldment Set Complete Not offered or available anywhere else. This is the correct weldment set for the MP5 40/10 BHO components. 
    HKP-17648
    $189.95
    Qty in Cart: 0
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