Parts
At HK Parts, we offer a wide range of high-quality Heckler and Koch accessories and components for your favorite firearms. Whether you are upgrading a Heckler and Koch pistol or rifle, or building with parts kits, we have you covered. Explore top-rated components for VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, find the parts you need to enhance performance, reliability, and function.
Popular upgrades include match triggers, threaded barrels, compensators, optic plates, and extended magazines. Rifle owners often add enhanced stocks, forearms, and ambidextrous controls.
MP5 and MP5K kits are top sellers, giving shooters authentic components for iconic builds. G36 and HK416 kits are also highly sought after by collectors and professionals alike.
HKP offers the world’s largest H&K-focused catalog, with better availability, faster fulfillment, and expert support compared to general retailers.
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Out Of Stock
HK MP5K, SP89 Recoil Guide Rod - Stripped
H&K Heckler & Koch
$14.95New HK German MP5K, SP89 Recoil Guide Rod Bar Incomplete Recoil spring rod stripped. Compatible with all MP5K & SP89 recoil springs.HKP-01693$14.95 -
Out Of Stock
HK Ambidextrous Sling - Green
H&K Heckler & Koch
$149.95HK Ambidextrous Sling - Green This sling is the factory HK Green 1.25" Ambi Sling with dual HK sling hooks for use on either the left or right side of the weapon. Best used with the ambi sling pins...HKP-00183$149.95 -
HK MP5, HK91, G3, HK33, HK53, HK93 A3 Buttstock Locking Lever with Spring
H&K Heckler & Koch
$199.95HK MP5, HK91, G3, HK33/53/93 A3 Retractable Stock Locking Lever With Locking Spring Compatible With: MP5HKP-02560$199.95 -
HK416, MR556 Handguard - HKey - Euro Spec
H&K Heckler & Koch
$576.95HK416, MR556 HKey Euro-Spec Slimline Handguard Euro-spec slimline handguard for HK416 and MR556 platforms. Compatible With: HK416, HK416 A1/A5 MR556, MR556 A1/A4 MR223 A3 In-spec clones and custom...HKP-22837$576.95 -
HK VP9 OR Front and Rear Sight Set - Green Fiber Optic - Standard Height
XS Sights
$47.95XS Sights Front and Green Rear Fiber Optic Sight Set for HK VP9 Optics Ready - Standard Height XS Sights front and rear fiber optic sight set for HK VP9 optics-ready pistols in standard height...HKP-22673$47.95 -
Out Of Stock
HK21 FMP Ultimate Build Kit- Matching Numbers - Complete RCM Barrel
FMP HK CONTRACT
$3,748.95HK21 Complete Build Kit- Matching Numbers HK Parts brings you another exhaustive parts kit. Our numbers-matching Ultimate HK21 parts kit includes everything you need to resurrect an iconic classic...HKP-22539$3,748.95 -
HK MP5, MP5K, MKE AP5, AP5-P Case Deflector - 9mm Receivers
MKE
$24.95MKE AP5, AP5-P, HK MP5, MP5K Case Deflector for 9mm Receivers This steel case deflector is manufactured by MKE for AP5 firearms and fits MP5-pattern 9mm receivers. It installs on the ejection-port...HKP-99349$24.95 -
On Sale
HK MP5K, AP5-P End Cap - Incomplete
MKE
Now: $25.16Was: $27.95MKE MP5K, AP5-P - Incomplete MKE manufactured replacement end cap. This end cap does not include the buffer, hardware, or sling swivel. Compatible With: HK MP5KHKP-22472Now: $25.16Was: $27.95 -
HK MR762 A4 Upper Receiver Kit - 16"
H&K Heckler & Koch
$2,629.95HK UPPER RECEIVER KIT MR762 A4 - 16" The MR762 A4 upper kit contains a complete upper receiver and barrel assembly. The closed system design significantly reduces malfunctions typically associated...HKP-22424$2,629.95 -
On Sale
HK G3, HK417, HK33, HK53, HK93 Flash Hider - 5/8x24 - Plan B Taper Mount
JMAC Customs
Now: $105.26Was: $116.955/8x24 - Plan B Taper Mount Flash Hider for HK G3, HK417, HK33, HK53, HK93 The 360HD is the latest evolution in JMac Custom's Recoil Reduction Device (RRD) family of muzzle brakes, designed to meet...HKP-22412Now: $105.26Was: $116.95 -
On Sale
HK416, MR556 CQC Pistol Grip - Walnut
JMK
$50.33 - $78.95JMK HK416, MR556 CQC pistol grip - Walnut The CQC pistol grip by JMK is crafted from CNC-machined black walnut. After machining, the grip is dyed to a uniform color and finished with a catalyzed...HKP-22401-M$50.33 - $78.95 -
HK P30 Compensator Replacement Rail Set - MOD 1
HKP HK Parts
$28.95HKP HK Parts HK P30 Rail and Plate Insert - Replacement MOD 1 Insert Kit Replacement Picatinny rail and smooth plate inserts with hardware for the MOD 1 compensator. Compatible With:HKP-22370$28.95