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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  • Used - H&K G36 (5.56/.223) 30 Round Magazine - LEO Marked - USED - HKP-22212 HK G36 30 Round Magazine - LEO Marked - USED
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    HK G36 30 Round Magazine - LEO Marked - USED

    H&K Heckler & Koch

    $195.99
    H&K G36 (5.56/.223) 30 Round Magazine - LEO Marked - USED CONDITION VARIES BY UNIT - SOLD INDIVIDUALLY HK German 30-round magazine, LEO marked, designed to perfectly fit all G36, G36K, G36C variants, and converted SL8's with the G36 magwell...
    HKP-22212
    $195.99
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  • Out Of Stock
    New - H&K 416/417 Battle Grip w/ Tool - Black - HKP-22208 HK416, MR556, HK417, MR762 Pistol Grip - Tool Included - Black

    HK416, MR556, HK417, MR762 Pistol Grip - Tool Included - Black

    H&K Heckler & Koch

    $159.95
    HK Heckler and Koch's Pistol Grip with tool - Black Factory German pistol grip in black.  Compatible With: HK416 HK MR556 HK417 HK MR762 HK M27 HK G28 AR-15, M4, & M16 Platforms  
    HKP-22208
    $159.95
    Out Of Stock
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  • New - HK MP5K Magpul UCS Stock with Adapter - HKP-22198 HK MP5K Ultra Carbine Stock and Adapter
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    HK MP5K Ultra Carbine Stock and Adapter

    HKP HK Parts / Magpul

    $312.95
    HK MP5K Magpul UCS Stock with Adapter The HK Parts UCS adapter and stock for the MP5K pairs our proven stock adapter with Magpul's UCS stock for a compact, adjustable configuration. The UCS stock features a reversible hinge for left and right folding...
    HKP-22198
    $312.95
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  • New - H&K HK G3/HK 91 Muzzle Protector Cap - HKP-21892 HK91, G3 Muzzle Protector Cap
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    HK91, G3 Muzzle Protector Cap

    H&K Heckler & Koch

    $8.95
    Heckler and Koch Muzzle Protector Cap for your HK91 and HK G3  Genuine HK muzzle cap designed to keep debris, water, etc., from entering the barrel. The cap can be removed by hand or when the first round is fired with the cap installed. Standard...
    HKP-21892
    $8.95
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  • Out Of Stock
    New - B&T Aimpoint ACRO P-2 w/ B&T Skeleton Mount 39mm - HKP-21857-M Picatinny Optic Mount - 39mm - Skeleton - Aimpoint ACRO P-2

    Picatinny Optic Mount - 39mm - Skeleton - Aimpoint ACRO P-2

    B&T Brugger & Thomet

    $737.95
    B&T Aimpoint ACRO P-2 w/ B&T Skeleton Mount 39mm The Aimpoint Acro P-2, paired with the B&T Skeleton Mount (39mm), takes the ACRO reflex sight to new heights in durability and reliability. It's fully enclosed design protects against rain, mud...
    HKP-21857-M
    $737.95
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    $737.95
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  • New - HKP MP5K 10mm Pistol Build Kit - HKP-21533 HK MP5K Parts Kit - 10mm - Pistol Build
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    HK MP5K Parts Kit - 10mm - Pistol Build

    HKP HK Parts

    $1,889.95
    HKP MP5K 10mm Pistol Build Kit MP5K 10mm complete pistol build kit. Featuring the latest in highest quality components for an unparalleled build. Equipped with a 9/16x24 3-lug threaded barrel to accept a wide variety of muzzle devices and suppressors...
    HKP-21533
    $1,889.95
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    $1,889.95
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  • New - MI/HKP HK MP5 Alpha Folding Brace/Stock Adapter - HKP-21512-M HK MP5 Stock or Brace Adapter - Folding - Alpha
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    HK MP5 Stock or Brace Adapter - Folding - Alpha

    MI Midwest Industries

    $419.95
    MI/HKP HK MP5 Alpha Folding Brace/Stock Adapter The Midwest Industries Alpha folding stock paired with the HK Parts Picatinny rail adapter offers unparalleled versatility. Adjust your length of pull, cheek riser, and butt pad to your exact style of...
    HKP-21512-M
    $419.95
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  • HK MP5, SP5 Handguard - Slimline Style HK MP5, SP5 Handguard - Slimline Style
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    HK MP5, SP5 Handguard - Slimline Style

    HKP HK Parts

    $22.95
    HKP MP5, SP5 Slimline Handguard Once a rare find after HK discontinued it, the classic slimline handguard returns with a fresh, U.S-made update. Specially engineered for the MP5, SP5, and compatible clones, this new version features a reimagined pattern...
    HKP-21471
    $22.95
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  • On Sale
    New - TPM - Fluted Bolt Knob - Black - HKP-20786 Bolt Knob - Fluted
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    Bolt Knob - Fluted

    Tactical Precision MFG

    Now: $24.95
    Was: $48.99
    TPM - Fluted Bolt Knob These bolt knobs can dress up any rifle with a 5/16×24 threaded bolt handle.  Features: Dimensions:1.5" x 7/8" x 7/8" Weight: 2 oz Threading: 5/16x24
    HKP-20786
    Now: $24.95
    Was: $48.99
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  • On Sale
    New - TPM - Grenade Bolt Knob - Black - HKP-20770 Bolt Knob - Grenade
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    Bolt Knob - Grenade

    Tactical Precision MFG

    Now: $24.75
    Was: $48.99
    TPM - Grenade Bolt Knob TPM grenade bolt knobs are a great way to dress up any rifle. It has a great feel and looks fantastic. Features: Dimensions: 1.90" x 7/8" x 7/8" Weight: 2 oz. Threading: 5/16x24  Made in the USA Compatible With: Any...
    HKP-20770
    Now: $24.75
    Was: $48.99
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    Now: $24.75
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  • On Sale
    New - GHW Scorpion Tailhook Mod 1 Brace/Stock Adapter - HKP-19137
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    Scorpion Stock or Brace Adapter - Tailhook - Mod 1

    Gear Head Works

    Now: $9.95
    Was: $19.95
    GHW Scorpion Tailhook Mod 1 Brace/Stock Adapter This adapter allows the user to mount the Patented Tailhook Mod 1 brace to the factory CZ folding cheek rest. It is injection molded reinforced polymer and can be installed to your choice of 3 positions...
    HKP-19137
    Now: $9.95
    Was: $19.95
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  • New - B&T HK UMP (.40 S&W & .45 ACP) 5 Prong Flash Hider - HKP-16891 HK UMP (.40 S&W & .45 ACP) 5 Prong Flash Hider
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    HK UMP (.40 S&W & .45 ACP) 5 Prong Flash Hider

    B&T Brugger & Thomet

    $129.95
    B&T HK UMP (.40 S&W & .45 ACP) 5 Prong Flash Hider Each flash hider includes the proper quick detach system to take the flash hider on and off. Each flash hider features a 5 prong design. Specifications: Diameter Max 31 mm Length Max 73...
    HKP-16891
    $129.95
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    $129.95
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