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 HK MR762 A4 14.4" QD Handguard - HKP-21936 HK MR762 A4 Handguard - Quick Detach - 14.4"

    HK MR762 A4 Handguard - Quick Detach - 14.4"

    H&K Heckler & Koch

    $739.95
    Heckler and Koch 14.4" Quick Detach Handguard for HK MR762 A4 Factory HK 14.4" handguard for the MR762 A4. This rail uses the correct HK quick-detach mounting system for fast removal and secure...
    HKP-21936
    $739.95
    Qty in Cart: 0
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    $739.95
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  • New - Nefarious Arms HK MR556/416 10.4" A5 Barrel - HKP-21873 HK416, MR556 Barrel - 5.56 - 10.4" - Threaded 1/2"x28 - A5 Profile

    HK416, MR556 Barrel - 5.56 - 10.4" - Threaded 1/2"x28 - A5 Profile

    Nefarious Arms

    $594.95
    Nefarious Arms HK MR556416 10.4" A5 Barrel An expertly crafted 10.4" barrel designed for the HK MR556 and 416 platforms. Featuring the A5 profile, this barrel balances durability and weight, making...
    HKP-21873
    $594.95
    Qty in Cart: 0
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    $594.95
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  • Out Of Stock
    New - H&K HK11 Recoil Spring - HKP-21858

    HK11 Recoil Spring

    H&K Heckler & Koch

    $18.95
    H&K HK11 Recoil Spring This German-made HK11 recoil spring is longer than the standard G3 springs but has the same pattern. As a project spring, this part can be cut down for use on G3 and HK33-type...
    HKP-21858
    $18.95
    Qty in Cart: 0
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    $18.95
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  • New - B&T Blast Deflector with Glass Breaker - Rotex IIA Interface - HKP-21776 B&T Blast Deflector - Rotex IIA Interface - Glass Breaker

    B&T Blast Deflector - Rotex IIA Interface - Glass Breaker

    B&T Brugger & Thomet

    $280.00
    B&T Blast Deflector with Glass Breaker - Rotex IIA Interface B&T blast deflector with glass breaker features a Rotex IIA Interface, designed to work with non-Pro APC223 and APC308 muzzle devices...
    HKP-21776
    $280.00
    Qty in Cart: 0
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    $280.00
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  • Out Of Stock
    New - B&T 39mm Picatinny QD Skeleton Mount for Aimpoint T-Series - HKP-21771 Picatinny Optic Mount - 39mm - Skeleton - Aimpoint T-Series

    Picatinny Optic Mount - 39mm - Skeleton - Aimpoint T-Series

    B&T Brugger & Thomet

    $150.00
    B&T 39mm Picatinny QD Skeleton Mount for Aimpoint T-Series The B&T QD skeleton mount for Aimpoint T-Series offers a 39mm
    HKP-21771
    $150.00
    Qty in Cart: 0
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    $150.00
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  • HK G3K, HK33 Flash Hider - 4 Prong Enclosed
HK G3K, HK33 Flash Hider - 4 Prong Enclosed

    HK G3K, HK33 Flash Hider - 4 Prong Enclosed

    RCM

    $187.95
    RCM HK G3K & HK33 Flash Hider - 4 Prong - Enclosed End The RCM G3K flash hider can be welded to a 12.69" barrel to achieve a non-SBR OAL of 16 plus inches or add to any other configuration. Made in...
    HKP-21598
    $187.95
    Qty in Cart: 0
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    $187.95
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  • Out Of Stock
    New - B&T HK 417/G36K Flash Hider - HKP-21520 HK416, G3, G36 Flash Hider - 15x1 RH - Rotex Interface - B&T

    HK416, G3, G36 Flash Hider - 15x1 RH - Rotex Interface - B&T

    B&T Brugger & Thomet

    $144.99
    B&T Flash Hider with Interface for Rotex III/V/VA Swiss-made flash hider compatible with NATO A2 suppressor mounting HUB's. Specifications: Made in Switzerland
    HKP-21520
    $144.99
    Qty in Cart: 0
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    $144.99
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  • New - KNS Precision HK Push Button Take Down Pin - Large - HKP-21388 HK MP5, HK33, HK91 Take Down Pin - Push Button - Large

    HK MP5, HK33, HK91 Take Down Pin - Push Button - Large

    KNS Precision

    $24.99
    KNS Precision HK Push Button Take Down Pin - Large .275" This 7mm (.275") diameter take-down pin has a spring-loaded push button. When the button is depressed, the stainless steel keeper detents...
    HKP-21388
    $24.99
    Qty in Cart: 0
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    $24.99
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  • New - H&K MR556 Slimline Barrel, 16.5" - HKP-21322 HK MR556 Barrel 5.56 / .223 - 16.5" - Slimline

    HK MR556 Barrel 5.56 / .223 - 16.5" - Slimline

    H&K Heckler & Koch

    $489.95
    H&K MR556 Slimline Barrel, 16.5" Genuine HK MR556 Slimline 16.5" Barrel.  Non-chrome-lined for match accuracy. Compatible With: HK MR556
    HKP-21322
    $489.95
    Qty in Cart: 0
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    $489.95
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  • New - JMAC Universal Picatinny 6" Skeletonized Tube with 1913 Folding Mech - HKP-21244

    Picatinny 6" Skeletonized Tube with 1913 Folding Mech

    JMAC Customs

    $227.90
    JMAC 6" Skeletonized Tube with 1913 Folding Mech This M4 tube adapter replaces the standard buffer tube to ensure the stock folds as flat as possible! Fits most M4 style stocks/braces  Features:
    HKP-21244
    $227.90
    Qty in Cart: 0
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    $227.90
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  • On Sale
    New - TPM 3 Port .30 Cal Muzzle Brake with Crush Washer - HKP-20900 .30 Cal Muzzle Brake - 3 Port - Crush Washer

    .30 Cal Muzzle Brake - 3 Port - Crush Washer

    Tactical Precision MFG

    Now: $35.96
    Was: $72.99
    TPM Tactical Precision MFG 3 Port .30 Cal Muzzle Brake with Crush Washer This 3 port muzzle brake is made for any 5/8x24 application and comes with a crush washer. Specifications: Dimensi
    HKP-20900
    Now: $35.96
    Was: $72.99
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    Now: $35.96
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