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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HK VP9SK EDC Magwell - Ultra Low Profile
HKP HK Parts
$55.95HKP HK VP9SK EDC Magwell - Ultra Low Profile The smallest and most streamlined EDC magwell for the HK VP9SK, now featuring a fully functional funnel designed for rapid, seamless reloads. Crafted from durable aluminum and treated with type 3 hard coat...HKP-22263-M$55.95 -
HK91, G3 Sniper Trigger Group - AC Unity Grip
H&K Heckler & Koch
$699.95H&K HK91, G3 Sniper Trigger Group with AC Unity Grip The G3, HK91 match trigger group paired with the AC Unity PSG1 style sniper grip is an outstanding choice for anyone looking to create a tactical and visually impressive build. With its robust...HKP-22252$699.95 -
On Sale
HK33, HK53, HK93 Magazine - 25 Round - RARE - Used - LEO Marked
H&K Heckler & Koch
Now: $249.95Was: $349.95H&K Heckler & Koch HK33, HK53, HK93 - 25 Round Magazine - LEO MARKED - (5.56/.223) - RARE - USED Priced for ONE Magazine - Condition Varies by Unit - Sold Individually ONLY A FEW UNITS AVAILABLE Factory-original H&K Heckler &...HKP-99299Now: $249.95Was: $349.95 -
On Sale
HK G36 Magazine - 30 Round - LEO Marked - USED - BLEMISHED
H&K Heckler & Koch
Now: $119.95Was: $195.99H&K G36 (5.56/.223) 30 Round Magazine - LEO Marked - USED - BLEMISHED BROKEN COUPLERS AND LUGS - VARYING CONDITION SHOWN - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL...HKP-22212-BNow: $119.95Was: $195.99 -
Out Of Stock
HK CC9 Optic Cover Plate - Optic Ready
H&K Heckler & Koch
$51.95H&K CC9 Optic Ready Cover Plate German-manufactured cover plate for the optic cut on the H&K CC9 pistol. Installed when an optic is not mounted. Compatible With: HK CC9HKP-22141$51.95 -
Out Of Stock
HK CC9 Firing Pin Return Spring
H&K Heckler & Koch
$5.95H&K CC9 Firing Pin Return Spring OEM firing pin return spring for the CC9 pistol that regulates firing pin movement during cycling to ensure reliable function. Compatible With: HK CC9HKP-22137$5.95 -
Out Of Stock
HK CC9 Ejector
H&K Heckler & Koch
$5.95H&K CC9 Ejector Made by H&K, this ejector for the CC9 pistol directs spent casings out of the ejection port during cycling. Compatible With: HK CC9HKP-22114$5.95 -
HK USPC .45 ACP MOD 1 Compensator
HKP HK Parts
$179.95HK Parts MOD 1 Compensator: H&K USPC .45 ACP The HK Parts MOD 1 compensator perfectly blends form and function, setting a new standard in muzzle control. Experience a significant reduction in muzzle flip and recoil, allowing you to get back on target...HKP-22072$179.95 -
On Sale
HK416 Catch - Bolt Hold Open
USA
Now: $19.95Was: $39.95HK 416 Bolt Hold Open Catch US-made bolt hold open catch for the HK 416. Compatible With: HK 416 THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE. SALE IS FINAL.HKP-99101Now: $19.95Was: $39.95 -
On Sale
HKP HK P30 Gen 1 Rail Mount Compensator - Blue - Non-Threaded - BLEMISHED
HKP HK Parts
Now: $93.95Was: $189.95HKP HK P30 Gen 1 Rail Mount Compensator - Blue - Non-Threaded - BLEMISHED DOES NOT INCLUDE ALLEN WRENCH COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The HK...HKP-99083Now: $93.95Was: $189.95 -
HK/HKP 14 Round HK VP9SK Complete Magazine
HKP HK Parts / Heckler & Koch
$69.95H&K/HKP 14 Round HK VP9SK Complete Magazine HK Parts modifies an existing 12 round magazine with a +2 extension to create a fully functional 14 round magazine. Specifications: 4-1/2" overall length Compatible With: HK VP9SKHKP-21864$69.95 -
On Sale
HK MP5 Cocking Tube - Extrusion - 8" - Gunsmith Special
USA
Now: $19.95Was: $54.95HK MP5 8" Cocking Tube Extrusion - Gunsmith Special This 8" cocking tube extrusion is ideal for custom HK-style firearm builds, repairs, or refurbishments, providing a solid foundation for restoring or fabricating cocking tubes on HK MP5, G3, and...HKP-99061Now: $19.95Was: $54.95