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.

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Out Of Stock
    New - H&K MP5K/SP89 9mm 2 Position (0,1 Pictogram) FBI Style Trigger Housing - Clipped & Pinned - HKP-00402 HK MP5K/SP89 9mm 2 Position (0,1 Pictogram) FBI Style Trigger Housing - Clipped & Pinned

    HK MP5K/SP89 9mm 2 Position (0,1 Pictogram) FBI Style Trigger Housing - Clipped & Pinned

    H&K Heckler & Koch

    $199.95
    H&K MP5K/SP89 9mm 2 Position (0,1 Pictogram) FBI Style Trigger Housing - Clipped & Pinned This clipped and pinned trigger housing is modified to fit MP5K or SP89 housings. It accommodates all HK German ambidextrous trigger packs and selector...
    HKP-00402
    $199.95
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $199.95
    Subtotal:
  • New - HKP MP5 9mm Reverse Stretch Pistol Build Kit - Complete - HKP-17121
    Add to Cart

    HK MP5 Parts Kit - Reverse Stretch Pistol - 9mm

    HKP HK Parts

    $1,679.95
    MP5 Reverse Stretch 9mm Pistol Build Kit Complete - German & USA Made Parts MP5-RS 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be legal as a pistol,...
    HKP-17121
    $1,679.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,679.95
    Subtotal:
  • On Sale
    New - Magpul M-LOK Bipod Mount - HKP-17269
    Add to Cart

    M-LOK Bipod Mount

    Magpul

    Now: $19.95
    Was: $29.95
    Magpul M-LOK Bipod Mount The Magpul M-LOK Bipod Mount allows for the attachment of Harris®-style stud mounted bipods to M-LOK compatible hand guards and forends. The M-LOK Bipod Mount offers a low-profile, robust, and elegant mounting solution for...
    HKP-17269
    Now: $19.95
    Was: $29.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $19.95
    Was: $29.95
    Subtotal:
  • Out Of Stock
    New - Strike Industries M-LOK & Key Mod Universal Rail - 7 Slots - HKP-17594 MLOK LINK Rail Section - 7 Slots - QD

    MLOK LINK Rail Section - 7 Slots - QD

    Strike Industries

    $25.95
    Strike Industries M-LOK & Key Mod Universal Rail - 7 Slots Strike Industries LINK attachment system takes the age old question Key-Mod vs. M-LOK and came up with the ultimate solution, a dual interface design compatible with both M-LOK and Key-Mod,...
    HKP-17594
    $25.95
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $25.95
    Subtotal:
  • Out Of Stock
    New - H&K MP5 SEF F/A Trigger Group- SEF Contoured - HKP-02239 HK MP5 SEF F/A Trigger Group- SEF Contoured

    HK MP5 SEF F/A Trigger Group- SEF Contoured

    H&K Heckler & Koch

    $0.00
    H&K MP5 SEF F/A Trigger Group- SEF Contoured Ready to install on your HK push pin swing-down receivers. New German HK trigger housing and selector lever. Used hand-picked trigger pack. 
    HKP-02239
    $0.00
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
  • Out Of Stock
    New - HKP ACE Adapter for MP5K, SP89 & SP5K - HKP-18505 HKP ACE Adapter for MP5K, SP89 & SP5K

    HKP ACE Adapter for MP5K, SP89 & SP5K

    HKP HK Parts

    $54.95
    ACE Adapter for MP5K, SP89 & SP5K   Each ACE adapter is made from a solid billet of CNC machined aircraft grade aluminum. Properly buffered with factory correct "H" buffers to protect your expensive firearm. This is the finest ACE adapter...
    HKP-18505
    $54.95
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $54.95
    Subtotal:
  • HK MP5SD Apparel - Hats, Patches, and Shirts HK MP5SD Apparel - Hats, Patches, and Shirts
    Choose Options

    HK MP5SD Apparel - Hats, Patches, and Shirts

    HKP HK Parts

    $0.00
    HKP HK MP5SD Apparel and Patch Collection  Represent your platform with the HK Parts MP5SD Series apparel and accessories lineup. Built for enthusiasts who appreciate iconic firearms and clean, understated design, this collection delivers premium...
    HKP-22457-M
    $0.00
    Choose Options
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
  • HK G3, HK33, HK93 Bayonet w/Scabbard - NOS H&K Heckler & Koch HKP-22366 HK G3, HK33, HK93 Bayonet w/Scabbard - NOS H&K Heckler & Koch HKP-22366
    Add to Cart

    HK G3, HK33, HK93 Bayonet with Scabbard - NOS

    H&K Heckler & Koch

    $227.95
    HK G3, HK33, HK93 Bayonet with Scabbard - New Old Stock Genuine German HK military surplus bayonet in original wrap. These are the 12-groove version of the popular military bayonet.  Scabbard is included. Compatible With: HK G3 HK91 HK33 HK93
    HKP-22366
    $227.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $227.95
    Subtotal:
  • New - Nefarious Arms HK MR556 A3 & 416 A5 Barrel Nut - HKP-22082 HK416 A5, MR556 A3 Barrel Nut
    Add to Cart

    HK416 A5, MR556 A3 Barrel Nut

    Nefarious Arms

    $39.95
    Nefarious Arms HK MR556 A3/416 A5 Barrel Nut Whether replacing a barrel nut or sourcing the best parts for your build, the Nefarious MR556/416 barrel nut is an excellent option.  Meticulously crafted in the US to the highest quality standards...
    HKP-22082
    $39.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • Out Of Stock
    On Sale
    New - HKP .45 ACP - Titanium Thread Protector - Threaded 16x1 LH - HKP-22036 Thread Protector - .45 ACP - 16x1 LH - Titanium

    Thread Protector - .45 ACP - 16x1 LH - Titanium

    HKP HK Parts

    Now: $11.95
    Was: $23.95
    HKP .45 ACP Titanium Thread Protector - Threaded 16x1 LH US-made thread protector for firearms chambered in .45 ACP, threaded 16x1 left hand. Compatible With: HK UMP, USC HK45, HK45T HK45C, HK45CT HK USP 45, USPT 45 HK USPC 45, USPCT 45 B&T...
    HKP-22036
    Now: $11.95
    Was: $23.95
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $11.95
    Was: $23.95
    Subtotal:
  • New - Magpul AR/M4 TMAG 20 Round GEN M3 Magazine - Translucent OD Green - HKP-22035 AR, M4 Magazine - TMAG Gen 3 - 20 Round - Translucent OD Green
    Add to Cart

    AR, M4 Magazine - TMAG Gen 3 - 20 Round - Translucent OD Green

    Magpul

    $24.95
    Magpul AR/M4 TMAG® 20 Round GEN M3™ Magazine - Translucent OD Green US-made translucent 20 round magazine optimized for AR/M4 platforms, but modified to permit operation with other 5.56 and .223 STANAG-compatible rifles. Specifications: Made...
    HKP-22035
    $24.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $24.95
    Subtotal:
  • New - B&T 39mm QD Skeleton Mount for Aimpoint ACRO - HKP-21730-M Picatinny Optic Mount - 39mm - Skeleton Mount - Aimpoint ACRO
    Choose Options

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

    B&T Brugger & Thomet

    $150.00
    B&T 39mm QD Skeleton Mount for Aimpoint ACRO The B&T QD "Skeleton" mount for Aimpoint® Acro offers a 39mm elevated profile for improved sight alignment, ideal for night vision setups requiring clearance over forward-mounted IR devices. Its...
    HKP-21730-M
    $150.00
    Choose Options
    Qty in Cart: 0
    Quantity:
    Price:
    $150.00
    Subtotal:
  • Total: items /

Adding your products to cart