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
  • On Sale
    Used - H&K 90 Series Pinned Hammer - HKP-18305 HK 90 Series Pinned Hammer
    Add to Cart

    HK 90 Series Pinned Hammer

    H&K Heckler & Koch

    Now: $26.95
    Was: $29.95
    Hammer, Full Auto HK 90 Series Trigger Packs - German HK - Used German HK Hammer- used, surplus in VG-EXC shape and in perfect working order. With the proper hole on the hammer to pin the strut in place. This hammer is the hammer that is most commonly...
    Now: $26.95
    Was: $29.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $26.95
    Was: $29.95
    Subtotal:
  • On Sale
    New - HK USP/USPC/45 Match Hammer Spring - HKP-01410
    Add to Cart

    HK USP/USPC/45 Match Hammer Spring

    H&K Heckler & Koch

    Now: $5.36
    Was: $5.95
    HK USP, USPC, & HK45 Match Hammer Spring The match hammer spring is also known as the USPC standard hammer spring. This is also the correct spring needed for the light, TGS, and LEM conversion for the USPC & other custom pistol configurations...
    Now: $5.36
    Was: $5.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $5.36
    Was: $5.95
    Subtotal:
  • Out Of Stock
    On Sale
    New - HKP Roller +8 - New - 8.08mm - HKP-19437 HK Roller +8 - New - 8.08mm

    HK Roller +8 - New - 8.08mm

    HKP HK Parts

    Now: $7.19
    Was: $8.99
    Roller +8 - New - 8.08mm HK Parts Standard (8.08 mm) locking roller, The proper roller size is essential for proper bolt gap. US Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to...
    Now: $7.19
    Was: $8.99
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $7.19
    Was: $8.99
    Subtotal:
  • On Sale
    New - HKP Rear Sight Oval Washer - HKP-00870
    Add to Cart

    HK Rear Sight Oval Washer

    HKP HK Parts

    Now: $2.36
    Was: $2.95
    HKP Rear Sight Oval Washer HK German oval washer for the rear sight diopter style assemblies. This is the needed washer used in conjunction with the locking washer. Fits and works with all diopter-style rear sights.
    Now: $2.36
    Was: $2.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $2.36
    Was: $2.95
    Subtotal:
  • On Sale
    New - H&K MP5 & MP5K Firing Pin Spring - HKP-00063
    Add to Cart

    HK MP5, MP5K Spring - Firing Pin

    H&K Heckler & Koch

    Now: $29.66
    Was: $32.95
    H&K MP5 & MP5K Firing Pin Spring The latest firing pin spring features a stronger and more durable braided design, surpassing the standard non-braided spring in performance and longevity.  Compatible With: HKMP5 HK MP5K HK SP5 HK SP5K ...
    Now: $29.66
    Was: $32.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $29.66
    Was: $32.95
    Subtotal:
  • Out Of Stock
    On Sale
    New - HKP MP5, MP5K, 94 & SP89 Firing Pin-Steel - HKP-02115

    HK MP5, HK94, MP5K, SP89 Firing Pin - Steel

    HKP HK Parts

    Now: $13.98
    Was: $17.47
    MP5, MP5K, 94, & SP89 Firing Pin - Steel Each part is made using the factory HK material and specifications from original HK German blueprints. Compatible With: MP5, HK94 MP5K, SP89, SP5K MP5 40, 10mm, .357 Sig Zenith, POF, Omega, DT,...
    Now: $13.98
    Was: $17.47
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $13.98
    Was: $17.47
    Subtotal:
  • On Sale
    New - PTR HK 91/G3 (7.62x51/.308) Rear Push Pin Reinforcement Weldment - HKP-18224 HK91, G3 Rear Push Pin Reinforcement Weldment
    Add to Cart

    HK91, G3 Rear Push Pin Reinforcement Weldment

    PTR

    Now: $17.95
    Was: $19.95
    HK91, G3, PTR, CETME Push Pin Reinforcement Weldment HK91/G3/PTR91 or CETME steel receiver flat weldment that is added to the rear of the receiver where the 2 large stock push pins install to reinforce this section of the receiver against damage or use...
    Now: $17.95
    Was: $19.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $17.95
    Was: $19.95
    Subtotal:
  • On Sale
    New - H&K HK VP9/VP9SK/P30/45 Clamping Pin Backstrap - HKP-01810
    Add to Cart

    HK45, VP9, VP9SK, P30 Backstrap Clamping Pin

    H&K Heckler & Koch

    Now: $5.36
    Was: $5.95
    Dowel Pin Or Clamping Pin  This HK roll pin is used to hold the backstrap in place. Compatible With: HK45 HK45 Compact HK P30 HK P30L HK P30SK HK VP9 HK VP9SK
    Now: $5.36
    Was: $5.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $5.36
    Was: $5.95
    Subtotal:
  • On Sale
    New - H&K Magazine Catch Spring - HKP-01917
    Add to Cart

    HK90 Series Magazine Catch Spring

    H&K Heckler & Koch

    Now: $4.46
    Was: $4.95
    Heckler and Koch Magazine Catch Spring for the HK90 Rifle Series New HK German manufacture, not used, worn out surplus springs. Perfect spare and a must-have mag catch spring for all 90 series rifles that use a detachable magazine. Compatible...
    Now: $4.46
    Was: $4.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $4.46
    Was: $4.95
    Subtotal:
  • On Sale
    New - H&K HK MR556/416 Enhanced Buffer Spring - HKP-00039 HK416, MR556 - Spring - Enhanced Buffer
    Add to Cart

    HK416, MR556 - Spring - Enhanced Buffer

    H&K Heckler & Koch

    Now: $17.95
    Was: $19.95
    Enhanced HK German MR556 & 416 Buffer Spring The HK MR556/416 buffer spring will also work with other AR-15 and M-16 rifles. It is a high-wear item and a must-have replacement part. Compatible With: HK MR556 HK416 HK416 A5 HK M27 AR15, M4 & M16
    Now: $17.95
    Was: $19.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $17.95
    Was: $19.95
    Subtotal:
  • On Sale
    New - HKP Cocking Tube End Cap - Aluminum - HKP-02806-M HK End Cap - Cocking Tube - Aluminum
    Choose Options

    HK End Cap - Cocking Tube - Aluminum

    HKP HK Parts

    Now: $11.96
    Was: $14.95
    H&K Cocking Tube End Cap - Aluminum - US Made Made from weight-saving aircraft-grade aluminum alloy.  Compatible With: All 90 series HK firearms and clones that use a triple frame/sight tower
    Now: $11.96
    Was: $14.95
    Choose Options
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $11.96
    Was: $14.95
    Subtotal:
  • On Sale
    New - H&K Full Auto Paddle Magazine Release Bushing - HKP-00847
    Add to Cart

    HK Full Auto Paddle Magazine Release Bushing

    H&K Heckler & Koch

    Now: $6.25
    Was: $6.95
    H&K Full Auto Paddle Magazine Release Bushing - New New HK German paddle magazine release bushing for all 90 series H&K weapon systems. Used for installing a paddle mag release. Please Note: This is NOT for use on semi-auto HK builds. This...
    Now: $6.25
    Was: $6.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $6.25
    Was: $6.95
    Subtotal:
  • Total: items /

Adding your products to cart