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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On Sale
HK416 A1 Upper Receiver - 10.4"
H&K Heckler & Koch
Now: $2,999.95Was: $3,499.95HK416 10.4" Complete Upper Receiver Features: Factory German 10.4" length 2008 date coded P.D. trade-in, de-serialized during the de-milling process. Finish your build with a matching lower from STS Tactical. Compatible With: HK416HKP-22245Now: $2,999.95Was: $3,499.95 -
HK91, G3 Front Sight Tower - SURPLUS
H&K Heckler & Koch
$16.95H&K G3/91 Front Sight Tower - SURPLUS UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE Used genuine H&K steel front sight tower for the G3 & HK91. Provides the front sight post assembly for target acquisition and secures the...HKP-22158$16.95 -
HK CC9 Magazine Floorplate - 9mm - Flat
H&K Heckler & Koch
$5.95H&K CC9 Flat Magazine Floor Plate OEM floor plate for HK CC9 magazines. Direct replacement for standard or extended floor plates. Compatible With: HK CC9 ***Magazine floor plate only. Pictured complete magazine is for reference only.HKP-22153$5.95 -
HK CC9 Magazine Locking Plate - 12 Round
H&K Heckler & Koch
$5.95H&K CC9 Magazine Locking Plate - 12 Round Locking plate for H&K CC9 12-round magazine. Secures the floor plate and internal components to the magazine body. German-made by H&K. Compatible With: HK CC9HKP-22145$5.95 -
HK G36K Handguard with Heat Shield
H&K Heckler & Koch
$68.95H&K G36K Handguard with Heat Shield Lightweight and durable design for improved heat management and reliable performance. Compatible With: G36KHKP-22010$68.95 -
On Sale
HK53 Cocking Tube
USA
Now: $79.95Was: $149.95HK53 Cocking Tube US made cocking tube Compatible With: HK53 THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE. SALE IS FINAL.HKP-99057Now: $79.95Was: $149.95 -
HK VP9, VP40 Optic Mount, Aimpoint ACRO P-1, P-2
B&T Brugger & Thomet
$55.00B&T HK VP9 Mounting Base for Aimpoint ACRO P-1 and P-2 Upgrade your HK VP9 or VP40 with the B&T mounting base for Aimpoint ACRO optics. Made from high-quality steel, this durable mounting base ensures a secure and precise fit for your red dot...HKP-21863$55.00 -
HK33, HK53, HK93 Surplus Fixed Stock - A2 - Alpine Green
H&K Heckler & Koch
$139.95Surplus - Fixed Stock - OD Green - HK93,33,53 German military surplus but hand-picked to give you the best of the lot. Ready to install on your HK or clone rifle. Each stock features the correct all-metal backplate painted in HK black...HKP-21847$139.95 -
Out Of Stock
B&T GHM9/45 Stock Telescopic
B&T Brugger & Thomet
$510.00B&T Stock Telescopic for GHM9/45 Factory B&T 3-position telescopic stock for the GHM9 and GHM45 platforms. Compatible With: B&T GHM9/GHM45HKP-21722$510.00 -
HK MP5 Alpha Folding Stock With Direct Fit Adapter - .22 LR
MI Midwest Industries
$419.95MI/HKP HK MP5 .22 LR Alpha Folding Brace/Stock Adapter The Midwest Industries alpha folding stock paired with the HK Parts picatinny rail adapter offers unparalleled versatility. Adjust your length of pull, cheek riser, and butt pad to your exact style...HKP-21515-M$419.95 -
On Sale
HK MP5 Bolt Group - 9mm - Full Auto - Complete
H&K Heckler & Koch
Now: $2,245.95Was: $2,874.95H&K HK MP5 9mm Complete Full Auto Bolt Group This is a factory genuine HK German full auto bolt group compiled with the best German parts available for those that need the best parts on their beloved MP5. Last call on these as they are NLA and...HKP-21478Now: $2,245.95Was: $2,874.95 -
On Sale
JMAC HK G36/HK33 Muzzle Device - Threaded 15x1
JMAC Customs
Now: $77.95Was: $99.95JMAC HK G36/HK33 (5.56/.223) Muzzle Device - Threaded 15x1 The RRD-360 Muzzle Device from JMAC Customs is unlike others on the market today. This device vents gasses 360 degrees away from your muzzle requiring less effort from the shooter to...HKP-21258Now: $77.95Was: $99.95