Small Parts

Small Parts

Explore our extensive selection of HK small parts at HKParts, perfect for repairs, upgrades, and custom builds. Our inventory includes high-quality, precision-machined replacement parts and maintenance kits designed for a wide range of HK models. Whether you need push pins, springs, or custom components, our HK-specific small parts ensure optimal performance and durability for your firearm.

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Out Of Stock
    New - H&K G36/SL8 (5.56/.223) Factory Recoil Buffer - HKP-00290

    HK G36, SL8 Recoil Buffer - Factory

    H&K Heckler & Koch

    $20.95
    HK G36 Or SL8 Factory Recoil Buffer   A critical spare part as these buffers deteriorate with usage and time.    
    HKP-00290
    $20.95
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $20.95
    Subtotal:
  • New - H&K G36/SL8 (5.56/.223) Ejector Spring - HKP-01867
    Add to Cart

    HK G36, SL8 Ejector Spring

    H&K Heckler & Koch

    $35.95
    HK G36 & SL8 Series Ejector Spring - HK German This is a great item to have on hand as this part is prone to wear and breakage.
    HKP-01867
    $35.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $35.95
    Subtotal:
  • New - HK G36/SL8 (5.56/.223) Cocking Handle Spring - HKP-18369 HK G36, SL8 Cocking Handle Spring - US
    Add to Cart

    HK G36, SL8 Cocking Handle Spring - US

    USA

    $9.95
    G36 Cocking Handle Spring- US Made   Compatible With: G36 All variants SL8 All variants
    HKP-18369
    $9.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
  • Out Of Stock
    Used - KDG HK MR762, HK 417, HK G28 Ambidextrous Magazine Release - Black - HKP-19204 Used - KDG HK MR762, HK 417, HK G28 Ambidextrous Magazine Release - Black - HKP-19204

    HK417, MR762, G28 Magazine Release - Ambidextrous

    KDG Kinetic Development Group

    $169.95
    Magazine Release - Ambi - HK MR762, 417, G28 The HK 762 Ambi (Ambidextrous) Magazine Release. This is the first ambidextrous magazine release for the HK 417 variant rifles.  The mag release is a lever instead of a button; where the release has been...
    HKP-19204
    $169.95
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $169.95
    Subtotal:
  • New - H&K HK G36, HK SL8 Magazine Paddle Release - HKP-02152 HK G36, SL8 Magazine Paddle Release
    Add to Cart

    HK G36, SL8 Magazine Paddle Release

    H&K Heckler & Koch

    $19.95
    HK G36 & SL8 Magazine Paddle Release Compatible With: HK SL8 HK G36 HK G36K HK G36C
    HKP-02152
    $19.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $19.95
    Subtotal:
  • New - H&K HK MR556/MR762/416 Dowel Pin - HKP-19528
    Add to Cart

    HK416, MR556, MR762 Dowel Pin

    $9.95
    H&K HK MR556/MR762/416 Dowel Pin Compatible With: HK MR556 HK 416 HK MR762
    HKP-19528
    $9.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
  • New - H&K HK P30/P2000 Hammer Strut - HKP-01621
    Add to Cart

    HK P30, P2000 Hammer Strut

    H&K Heckler & Koch

    $24.95
    HK P2000 & P30 Hammer Strut Compatible With: HK P2000 HK P30
    HKP-01621
    $24.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $24.95
    Subtotal:
  • New - H&K HK USP .45 ACP Buffer Spring Retainer Roll Pin - HKP-02267
    Add to Cart

    HK USP Retainer Roll Pin, Buffer Spring - .45 ACP

    H&K Heckler & Koch

    $7.95
    HK USP .45 ACP Buffer Spring Retainer Roll Pin  
    HKP-02267
    $7.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $7.95
    Subtotal:
  • Out Of Stock
    New - H&K HK USPC LEM Firing Pin Block Spring - HKP-16421

    HK USP Compact LEM Block Spring - Firing Pin

    H&K Heckler & Koch

    $8.95
    H&K HK USPC LEM Firing Pin Block Spring   Compatible With: HK USP Compact 9mm - LEM HK USP Compact 40 - LEM HK USP Compact 45 ACP - LEM
    HKP-16421
    $8.95
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $8.95
    Subtotal:
  • New - H&K G36/SL8 (5.56/.223) Cocking Handle Spring - HKP-01862
    Add to Cart

    HK G36, SL8 Cocking Handle Spring

    H&K Heckler & Koch

    $10.95
    HK German G36 Cocking Handle Spring - All Variants Compatible With: G36 - all variants SL8 - all variants
    HKP-01862
    $10.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $10.95
    Subtotal:
  • New - H&K G36/SL8 (5.56/.223) Barrel Retaining Nut - HKP-16341 HK G36, SL8 Barrel Retaining Nut
    Add to Cart

    HK G36, SL8 Barrel Retaining Nut

    H&K Heckler & Koch

    $29.95
    HK G36 & SL8 Barrel Retaining Nut - German HK Compatible With: SL8 (all models and variants) G36E G36K G36C All other G36 Variants
    HKP-16341
    $29.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $29.95
    Subtotal:
  • New - HKP HK MP5 (.40 S&W) Locking Roller -2 - HKP-17563
    Add to Cart

    HKP HK MP5 (.40 S&W) Locking Roller -2

    HKP HK Parts

    $11.95
    HK US MP540 Undersized Locking Roller, -2 The proper roller size is essential for proper headspacing of bolt gap. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need...
    HKP-17563
    $11.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $11.95
    Subtotal:
  • Total: items /

Adding your products to cart