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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Trigger Pack Hammer Spring - Extra Power - 5.56 / .223 - 7.62x51 / .308
H&K Heckler & Koch
$14.95H&K (5.56/.223) & (7.62x51/.308) Hammer Spring- Extra Power New HK German extra power hammer spring for all .308/.223 Semi & Full Auto Trigger Packs. This is a must have spare replacement part for your HK firearm parts bin. The heavy hammer...HKP-16447$14.95 -
HK VP9, P30, HK45 Optic Plate - DeltaPoint Pro, Eotech EFLX - Red Dot Pistol Mount
Evolution Gun Works
$49.95Evolution Gun Works HK VP9/P30/HK45/HK45C Leupold DeltaPoint Pro& Eotech EFLX Sight Mount Mounting Hardware is Included Features: Material: 7075 aluminum Coating: matte black hardcoat Overall length: 1.604" Overall width: .99" Mounting...HKP-20045$49.95 -
HK Mark 23, SOCOM Bench Mat
HKP HK Parts
$13.95HKP HK Mark 23, SOCOM Bench Mat This isn't your ordinary gun cleaning mat! Show your pride for your HK Mark 23 firearm while using our high quality neoprene rubber backed and cloth topped gun cleaning mat to protect your gun bench, desk, kitchen table,...HKP-17278$13.95 -
HK VP9 Magwell - Tactical Low Profile - Steel
HKP HK Parts
$59.95 - $74.95HKP HK VP9 Magwell - Tactical Low Profile - Steel Low profile, every day carry magwell for the HK VP9/VP40 pistol. The low profile mag-well is designed for the average every day VP owner. Whom would like the enhancements and competitive advantage a...HKP-18545-M$59.95 - $74.95 -
HK Handguard Sling Pin - Ambi - Small
H&K Heckler & Koch
$61.95HK German Ambidextrous Small Sling Pin For Forearm This ambidextrous pin will allow the user to attach a sling hook to the sling pin. This will also allow the user to use the sling on either the left or right side.HKP-00077$61.95 -
HK Receiver Flat Bending Jig Set - Billet Steel
HKP HK Parts
$599.95Flat Bending Jig Set For All HK Style Flats - Billeted - All Steel All steel billeted universal flat bending jig for all HK receiver flats including PTR .308 flats and the PTR/LSC flats. Each bending jig comes complete with all the pieces you need for...HKP-19595$599.95 -
HK VP9 Tactical Barrel - 9mm - 4.45" - Threaded 1/2x28
RCM
$225.00RCM HK VP9 9mm Tactical Barrel - Threaded 1/2x28 Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded barrel available for the HK VP9 9mm pistol, perfect as...HKP-16849$225.00 -
HK91, G3, PTR Armorer's Manual
HKP HK Parts
$19.95HK 91, G3, & PTR Armorer's Manual This manual is the best manual available for the HK .308 G3, 91, or PTR family of firearms. See the photos for the table of contents.HKP-02635$19.95 -
HK VP9 Long Slide - Optics Ready - Complete
H&K Heckler & Koch
$489.95H&K HK VP9 Long Slide Optics Ready Complete Slide Kit New HK German VP9LOR slide kit to upgrade any existing VP9 model to the VP9L OR. This kit is a drop on replacement that come with everything you need to swap your existing slide to the this...HKP-19836$489.95 -
HK416, MR556, G36, SL8 Piston Ring - Replacement Set of 3 - USA
HKP HK Parts
$8.95HK MR556, HK416 & G36, SL8 Gas Piston Ring Replacement Combo Set - 3 Rings This is a high wear common repair & replacement item. The gas rings are prone to periodic breakage & wear, tear and require them to be replaced periodically...HKP-17933$8.95 -
Out Of Stock
HK G36 Buttstock Axle Pin
H&K Heckler & Koch
$38.95G36 Stock Axle Pin For SL8 To G36 Stock Conversion New HK German manufacture. This is the axle pin that holds the G36 or G36C folding stock to the rear section of the receiver. Also used to mount the US-made rear stock block for those who are doing the...HKP-00741$38.95 -
HK416, HK417, MR556, MR762 Handguard Rail Cover - Quad
H&K Heckler & Koch
$19.95H&K HK MR556/MR762/416/417 Quad Handguard Rail Cover Brand new Heckler & Koch Picatinny rail covers made of high-impact HK polymer. Each rail is equipped with a quick-release tab and marked with the HK logo. Compatible With: HK...HKP-01743$19.95