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
    New - HKP Rail Mount Compensator Replacement Screw Set - HKP-19674 HK Screw Set for HKP Rail Mount Compensator
    Add to Cart

    HK Screw Set for HKP Rail Mount Compensator

    HKP HK Parts

    Now: $3.95
    Was: $4.95
    Replacement Screws for Rail Mount Compensator Replacement screw set for the HK Parts Rail Mount Compensators. This includes (2) screws. Compatible With: All HK Parts Rail Mount Compensators
    HKP-19674
    Now: $3.95
    Was: $4.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $3.95
    Was: $4.95
    Subtotal:
  • On Sale
    New - H&K German Recoil Guide Rod Rivet - HKP-01026
    Add to Cart

    HK German Recoil Guide Rod Rivet

    H&K Heckler & Koch

    Now: $8.95
    Was: $9.95
    H&K German Recoil Guide Rod Rivet This rivet holds the stop pin and recoil spring captive and in place to the recoil rod itself. The price is per rivet. New old stock HK German rivet. Compatible With: G3, 91, 33, 93, & 53 MP5, 94 MP5K SP89 HK21...
    HKP-01026
    Now: $8.95
    Was: $9.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $8.95
    Was: $9.95
    Subtotal:
  • New - H&K HK VP9/VP9SK, VP40 Dismounting Safety Elbow Spring - HKP-16791
    Add to Cart

    HK VP9, VP9SK, VP40 Disassembly Safety Spring

    H&K Heckler & Koch

    $2.95
    Elbow Spring For Dismounting Safety HK VP9, HK VP40 Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP9SK HK VP40
    HKP-16791
    $2.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $2.95
    Subtotal:
  • On Sale
    New - H&K HK VP/P30/USPC/P2000 9mm Magazine Locking Plate - HKP-01585 HK VP9, P30, USP Compact, P2000 9mm Magazine Locking Plate
    Add to Cart

    HK VP9, P30, USP Compact, P2000 9mm Magazine Locking Plate

    H&K Heckler & Koch

    Now: $4.95
    Was: $5.95
    9mm Magazine Locking Plate New HK German factory part. This is the locking plate for the bottom of the magazine spring. Compatible With: VP9 15 Round VP40 13 Round VP9SK 15 Round VP9SK 13 Round P30 15 Round P30 .40 13 Round USP Compact 9mm 13 Round USP...
    HKP-01585
    Now: $4.95
    Was: $5.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $4.95
    Was: $5.95
    Subtotal:
  • On Sale
    New - HKP Roller +9 - New - 8.09mm - HKP-19438 HK Roller +9 - New - 8.09mm
    Add to Cart

    HK Roller +9 - New - 8.09mm

    HKP HK Parts

    Now: $7.95
    Was: $8.99
    Roller +9 - New - 8.09mm HK Parts Standard (8.09 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...
    HKP-19438
    Now: $7.95
    Was: $8.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $7.95
    Was: $8.99
    Subtotal:
  • On Sale
    New - HKP Spare Buffer For Folding Stocks & End Caps - HKP-17886 HK MP5K, SP5K Spare Buffer for Folding Stocks and End Caps
    Add to Cart

    HK MP5K, SP5K Spare Buffer for Folding Stocks and End Caps

    HKP HK Parts

    Now: $8.95
    Was: $9.95
    HKP Spare Buffer For Folding Stocks & End Caps New US manufactured flat style "H"buffer to replace the factory HK buffer on MP5K folding stocks and end caps. As well as a spare or replacement buffer for the MP5 & MP5K folding B&T stocks. Made...
    HKP-17886
    Now: $8.95
    Was: $9.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $8.95
    Was: $9.95
    Subtotal:
  • On Sale
    New - H&K 17 Round HK VP9 Magazine Spring - HKP-19323 HK VP9 Magazine Spring - 17 Round
    Add to Cart

    HK VP9 Magazine Spring - 17 Round

    H&K Heckler & Koch

    Now: $7.95
    Was: $8.95
    Magazine Spring for 17 Round Magazine - HK VP9, VP9L, VP9 OR This magazine spring fits the VP9 17 round magazines.  A must-have replacement item as magazine springs should be replaced on a regular basis as this is a consumable part and is prone to...
    HKP-19323
    Now: $7.95
    Was: $8.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $7.95
    Was: $8.95
    Subtotal:
  • On Sale
    Used - HKP HK USP, P2000, HK45C Enhanced Magazine Release - FDE - HKP-21491 HK USP, P2000, HK45C Enhanced Magazine Release
    Choose Options

    HK USP, P2000, HK45C Enhanced Magazine Release

    HKP HK Parts

    Now: $22.46
    Was: $44.95
    HKP Enhanced Magazine Release -HK USP, P2000, HK45C  HK Parts Enhanced and Over-sized Magazine Release. The over-sized magazine release increases the overall surface area and makes it possible to release the magazine without changing the position of...
    HKP-21491-M
    Now: $22.46
    Was: $44.95
    Choose Options
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $22.46
    Was: $44.95
    Subtotal:
  • On Sale
    New - H&K HK MR556/416 Ejection Port Cover - FDE - HKP-18062 HK416, MR556 Ejection Port Cover - FDE
    Add to Cart

    HK416, MR556 Ejection Port Cover - FDE

    H&K Heckler & Koch

    Now: $53.95
    Was: $59.95
    HK German HK 416, MR556 Ejection Port Cover In FDE HK manufactured newer polymer style cover assembly found on the latest HK 416 & MR556's. This item can also be used on other AR15 style projects to enhance the build with the finest ejection port...
    HKP-18062
    Now: $53.95
    Was: $59.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $53.95
    Was: $59.95
    Subtotal:
  • Out Of Stock
    New - H&K UMP/USC (.40 S&W/.45 ACP/9mm) Barrel Roll Pin - HKP-00603

    HK UMP, USC Barrel Roll Pin

    H&K Heckler & Koch

    $11.94
    Heckler and Koch German made USC and UMP Universal Barrel Roll Pin HK recommends replacing the barrel pin when the barrel is removed with a new barrel pin. This is a great spare part to have on hand. The factory-correct barrel pin for all HK UMP and USC...
    HKP-00603
    $11.94
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $11.94
    Subtotal:
  • On Sale
    New - MP5 40/10 Extractor Spring - HKP-00409 HK MP5 Extractor Spring - .40 S&W, 10mm, .357 SIG
    Add to Cart

    HK MP5 Extractor Spring - .40 S&W, 10mm, .357 SIG

    USA

    Now: $8.95
    Was: $9.95
    US Made Extractor Spring for HK MP5 .40 S&W, 10mm, and .357 The extractor spring is the most common wear item on an MP5 and a must-have spare and replacement part. HK Germany no longer makes the MP5 40,10 extractor spring, and they are no longer...
    HKP-00409
    Now: $8.95
    Was: $9.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $8.95
    Was: $9.95
    Subtotal:
  • New - HKP MP5 A3 Retractable Stock Buffer - HKP-18160
    Add to Cart

    HK MP5 A3 Retractable Stock Buffer

    HKP HK Parts

    $6.95
    MP5 A3 Retractable Stock "H" Buffer For All HK A3 Retractable Stocks The A3 stock buffer is a high wear and common replacement items that does need to be replaced when they become torn, cracked, brittle, discolored & worn. These units are made from...
    HKP-18160
    $6.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $6.95
    Subtotal:
  • Total: items /

Adding your products to cart