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 - RCM HK 21E/23E (7.62x51/.308) & (5.56/.223) Locking Piece #9 - 40 Degree - HKP-02521 HK21E, HK23E Locking Piece #9 - 40 Degree
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    HK21E, HK23E Locking Piece #9 - 40 Degree

    RCM

    $49.95
    Locking Piece #9 - 40 Degree - US Made Compatible With: HK 21e HK 23e
    HKP-02521
    $49.95
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  • New - Strike Industries HK 416 .22LR Dual Folding Brace with Adapter - HKP-21409 HK416 Dual Folding Brace With Direct Fit - .22LR
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    HK416 Dual Folding Brace With Direct Fit - .22LR

    HKP HK Parts / Strike Industries

    $349.95
    HK416 Dual Folding Brace With Direct Fit - .22LR The Strike Industries Dual Folding Brace paired with the HKP 416 .22LR picatinny adapter is one of the best options on the market for those looking for a light, compact folding stock configuration...
    HKP-21409
    $349.95
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  • On Sale
    Used - Taiwanese T65 Retro Parts Kit - HKP-19676 T65 Rifle Parts Kit - Gas Piston - Vintage Taiwanese
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    T65 Rifle Parts Kit - Gas Piston - Vintage Taiwanese

    Other

    Now: $899.95
    Was: $1,119.95
    Taiwanese T65 Gas Piston Rifle Parts Kit - Vintage We have a limited number of these super rare gas piston rifle parts kits.  Each kit was used in Central & South America during active military conflicts and civil war. These kits are heavily...
    HKP-19676
    Now: $899.95
    Was: $1,119.95
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    Now: $899.95
    Was: $1,119.95
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  • Used - H&K HK MP5 & HK 94 Slimline Forearm - HKP-20274-M H&K HK MP5 & HK 94 Slimline Forearm - Black || HKP-20274 || HKPARTS
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    HK MP5, HK94 Slimline Handguard

    H&K Heckler & Koch

    $69.95
    H&K HK MP5 & HK 94 Slimline Forearm  Used German military slimline forearm refinished  and cerakote in a black finish. Modified to fit the MP5 & SP5. These are rare items only offered here at HK Parts. Each item is in good to...
    HKP-20274-M
    $69.95
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  • Used - H&K German Hammer Spring (5.56/.223 & 7.62x51/.308) - Used - HKP-18066
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    Trigger Pack Hammer Spring - 5.56 / .223, 7.62x51 / .308 - Used

    H&K Heckler & Koch

    $4.95
    HK German Rifle Hammer Spring For All .308 & .223 Semi & Full Auto Trigger Packs The rifle 308/5.56 hammer spring is a popular upgrade in 9mm builds experiencing light primer hits. This is the factory correct 25 lb. weight for positive detonation...
    HKP-18066
    $4.95
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    $4.95
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  • New - HK Rifle Tac Latch - HK 91, G3, HK 93, 33 - HKP-02791 HK91, G3, HK33, HK53 HK93 Tac Latch
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    HK91, G3, HK33, HK53 HK93 Tac Latch

    $69.95
    HK Rifle Tac Latch for HK91, G3, HK93, and HK33 HK's were designed to have a quick one-handed release capability for the magazine (paddle mag release). However, the semi-auto versions eliminated this much-needed feature due to import restrictions...
    HKP-02791
    $69.95
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  • New - B&T HK MP5K/SP5K/SP89 Barrel - Threaded 1/2x28 - 3-Lug - HKP-17894 HK MP5K, SP89, SP5K Barrel - 5.85" - Threaded 1/2x28 with 3 Lug
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    HK MP5K, SP89, SP5K Barrel - 5.85" - Threaded 1/2x28 with 3 Lug

    B&T Brugger & Thomet

    $350.00
    B&T HK MP5K/SP5K/SP89 Barrel - Threaded 1/2x28 - 3-Lug New from B&T Switzerland, cold hammer-forged (CHF), properly fluted & nitrided MP5K/SP5K barrels manufactured exclusively for the HK SP5K. New Swiss manufactured from hand-picked Swiss...
    HKP-17894
    $350.00
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    $350.00
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  • New - B&T Sling Swivel - Universal Picatinny Attachment - HKP-16893 B&T Sling Swivel - Universal Picatinny Attachment
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    B&T Sling Swivel - Universal Picatinny Attachment

    B&T Brugger & Thomet

    $15.95
    B&T Sling Swivel - Universal Picatinny Attachment   Designed for H&K snap-hooks, and mounts to any M1913 Picatinny Rail. Strong non-marring silent attachment point. Specifications: Color: Black Height max: 16.3 mm Length max: 12 mm Length...
    HKP-16893
    $15.95
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  • New - H&K HK MP5 4 Position Retractable Buttstock - RAL 8K - HKP-21265 HK MP5 Retractable  Buttstock - 4 Position - RAL8000
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    HK MP5 Retractable Buttstock - 4 Position - RAL8000

    H&K Heckler & Koch

    $764.95
    HK German MP5 & HK SP5 A3 "F" Style Retractable Rear Stock - 4 Position - RAL 8K This German HK A3 retractable is the latest & greatest HK retractable German stock available. Now in the desirable RAL 8000 color. The F stock is designed to take...
    HKP-21265
    $764.95
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  • Out Of Stock
    New - H&K HK MR762/MR556/416/417 Rail Cover Set - Black - HKP-17704 HK416, MR556, HK417, MR762 Rail Cover Set

    HK416, MR556, HK417, MR762 Rail Cover Set

    H&K Heckler & Koch

    $69.95
    H&K HK MR556/MR762/416/417 Rail Cover Set Brand new Heckler & Koch Picatinny rail covers made of high impact HK polymer. Each rail is equipped with a quick release tab & marked with the HK logo.  Specifications: Length: 8...
    HKP-17704
    $69.95
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  • New - H&K HK MR556 Receiver Take Down Tool - HKP-02653
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    HK MR556 Receiver Take Down Tool

    H&K Heckler & Koch

    $19.95
    H&K HK MR556 Receiver Take Down Tool This part is the tool used to tighten down the stock movement on the E1/E2 stock. Each tool will be stored in the rear of the E1/E2 stock. Compatible With: HK MR556 Please Note: We get...
    HKP-02653
    $19.95
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    $19.95
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  • New - MM Fixed Stock Heavy Rubber Buttpad - HKP-00914 HK91, HK21, HK93 Fixed Stock Heavy Rubber Buttpad - MM
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    HK91, HK21, HK93 Fixed Stock Heavy Rubber Buttpad - MM

    Michaels Machines

    $79.95
    MM Fixed Stock Heavy Rubber Buttpad   Reduce the felt recoil transferred to your shoulder with the Michael's Machines heavy rubber buttstock pad.  Perfect replacement for old, hard original buttstock pads.  US made and backed by a lifetime...
    HKP-00914
    $79.95
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