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
Bore Boss Pull-Through Bore Cleaner - 9mm / .357 / .38
Real Avid
Now: $10.95Was: $12.95Real Avid Bore Boss Pull-Through Bore Cleaner - .357/9mm/.38 From the barrel of innovation comes the ultra-compact Bore Boss, the first-ever self-storing, easy-feeding, clean-pulling, field-ready, hassle-free, pure-genius bore cleaner. The single-piece...HKP-19400Now: $10.95Was: $12.95 -
HK P30, P2000, USP Block Spring - Heavy Firing Pin
H&K Heckler & Koch
$5.95HK P2000 & P30 Heavy Firing Pin Block Spring This is the heavy LEM spring found on the LEM conversion. Compatible With: Any post-2005 production USP & UPSC P2000 P2000SK P30 P30SK Will fit the HK45 & HK45C modelsHKP-01603$5.95 -
12-Pack 123A Batteries
Surefire
$29.95Surefire 12-Pack 123A Batteries Made in the USA and the "gold standard" in battery performance. These are the best performance, longest lasting 123 batteries available. The price is for a box of 12 new batteries. Ideal for use with lasers, lights,...HKP-02711$29.95 -
On Sale
HK416, MR556 Barrel Nut
HKP HK Parts
Now: $31.95Was: $39.95HK MR556, HK 416 Barrel Nut Or Socket For Barrel - Aluminum A must have repair and replacement part for removal or when you have any work done to your barrel as the barrel nut may become damaged in the removal and installation processes. Made in the USA...HKP-17273Now: $31.95Was: $39.95 -
On Sale
HK91, G3 Tactical Handguard
PTR
Now: $126.95Was: $149.95New 2nd Generation- HK Black Matte Finish PTR, HK91, G3 Forearm Made from aircraft-grade aluminum, rock-solid, and lightweight. This forearm allows you to add up to 3 rails on your firearm. That includes the left, right, as well as bottom sides,...HKP-00368Now: $126.95Was: $149.95 -
On Sale
HK91, G3, PTR Magazine - 20 Round - Aluminum - Like New - FMP
FMP HK CONTRACT
Now: $15.95Was: $17.95FMP Portuguese HK91, G3, PTR 20 Round Aluminum Magazine - Like New Portuguese FMP 20-round aluminum magazine for HK91, G3, and PTR pattern rifles. A solid factory-style magazine option for range use, replacement needs, or adding extra mags to your setup...HKP-22558Now: $15.95Was: $17.95 -
On Sale
HK MP5, SP5 Optic Mount - Raised - Trijicon MRO
HKP HK Parts
Now: $107.95Was: $134.95HKP HK MP5/SP5 Raised Trijicon MRO Optic Mount The HKP Raised MRO Optic Mount was designed to give the shooter full view of both the MRO and the factory sights. The MRO mounting base is elevated enough to give an unobstructed view through the factory...HKP-21891-MNow: $107.95Was: $134.95 -
On Sale
HK VP9, P30 Magazine - 22 Round - 9mm
HKP HK Parts
Now: $80.95Was: $89.95HK PARTS 9mm 22 Round Magazine Complete for HK VP9 and HK P30 Drop-in magazine ready to go! Ideal for competitive shooters that would like a 22 round robust steel and alloy magazine. Each mag comes fully assembled and ready for use. HK Parts takes...HKP-21251Now: $80.95Was: $89.95 -
On Sale
HK MP5 Folding Brace - Skeletonized - Swiss
B&T Brugger & Thomet / SB Tactical
Now: $254.95Was: $299.95B&T MP5, SP5 Folding Brace - Swiss/USA - Skeletonized Factory Swiss B&T MP5, SP5 folding pistol brace with the SB Tactical/B&T components assembled. A rare offering using the B&T Swiss manufactured folding polymer end cap with sling...HKP-21052Now: $254.95Was: $299.95 -
On Sale
HK Mark 23 Compensator - Non-Threaded
HKP HK Parts
Now: $124.95Was: $199.95HKP HK Mark 23 .45 Cal Non-Threaded Compensator The HK Parts mark 23 compensator will add a sleek and tactical look to your MK23. With the quick and easy addition of our compensator you will add plenty of benefits. This compensator reduces recoil and...HKP-20821Now: $124.95Was: $199.95 -
On Sale
HK G36, UMP Pistol Grip Storage Insert
USA
Now: $12.95Was: $16.95HK UMP, G36 Pistol Grip Storage Insert G36 & UMP pistol grip insert for all G36 & UMP lower housings. This is the piece that locks into place and fits in the bottom of the handle itself. This is a perfect storage location for paperwork, spare...HKP-20176Now: $12.95Was: $16.95 -
On Sale
HK USC, UMP .45 Flash Hider - 3 Lug
B&T Brugger & Thomet
Now: $139.95Was: $165.00B&T HK USC/UMP .45 Flash Hider - 3-Lug B&T Switzerland has supplied these to law enforcement and military units around the world. Rock solid, mil-spec quality from an H&K OEM manufacturer. This flash hider slips over the end of the 3-lug...HKP-18346Now: $139.95Was: $165.00