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
HK MP5K Handguard - Tri-Rail
Command Arms Accessories
Now: $199.95Was: $284.95Command Arms HK MP5K Tri-Rail Handguard Command Arms tri-rail handguard for the MP5K. Built from lightweight aluminum, this handguard adds three Picatinny rail sections to provide a stable mounting platform for lights, lasers, vertical grips, and other...HKP-99453Now: $199.95Was: $284.95 -
On Sale
HK Single Point Sling - OD Green
HKP HK Parts
Now: $23.95Was: $29.95HKP Single Point Sling - OD Green This high-quality sling is a must-have for those who prefer operating with a single-point sling over the traditional 3-point HK sling. Features: Super thick all OD Green heavy-duty Cordura nylon to withstand years of...HKP-09057Now: $23.95Was: $29.95 -
HK416, MR556 Ejection Port Cover
H&K Heckler & Koch
$55.95H&K HK MR556/416 Ejection Port Cover HK manufactured newer polymer style cover assembly found on the latest HK 416 & MR556. This item can also be used on other AR15-style projects to enhance the project with the finest ejection port cover...HKP-15229$55.95 -
HK91, G3 Cocking Handle - All Metal - Surplus
H&K Heckler & Koch
$8.49HK German HK G3 & HK 91 Older Style All Metal Cocking Handle Used German Military Surplus. No longer made or offered by HK. A genuine Heckler and Koch part. All steel cocking handle. Rare and hard to find. Compatible With: HK 91, G3, HK51 HK PSG1,...HKP-16766$8.49 -
On Sale
PTR Muzzle Brake - Threaded 15x1 RH
PTR
Now: $22.95Was: $25.95PTR (5.56/.223) & (7.62x51/.308) Muzzle Brake - Threaded 15x1 RH Correct HK threading 15x1 right hand with HK style retaining spring to latch on the HK splined barrel. Made in the US and counts as one US 922r compliant part. Specifications: Threaded...HKP-02148Now: $22.95Was: $25.95 -
Bolt Head Locking Roller - -4, 7.96mm - Under-sized
H&K Heckler & Koch
$27.99Heckler and Koch -4 7.96mm Undersized Roller for Bolt Heads The proper roller size is essential for proper head spacing and bolt gap. New HK German not surplus or used goods. German-made -4 roller, each roller is priced per roller. Compatible...HKP-00504$27.99 -
HK MP5, MP5K, HK94K, SP89 Magazine Follower - 9mm
H&K Heckler & Koch
$22.95HK MP5, MP5K 9mm Magazine Follower Factory chrome follower will work with all HK MP5 9mm curved magazines. This is a new HK German OEM part. 40 Round 30 Round 15 Round 10 RoundHKP-01050$22.95 -
HK VP40, P30 Magazine - 20 Round - .40 S&W
HKP HK Parts / Heckler & Koch
$89.95HKP HK Parts and Heckler and Koch 20 Round .40 Cal Magazine for HK VP40, HK VP40 Tactical, HK P30, HK P30L, HK P30S HK Parts take an existing 13 round mag the +7 mag extension and assembles them into a working 20 round mag. Each unit comes as a...HKP-19546$89.95 -
On Sale
HK MP5 Picatinny Rail - Raised
HKP HK Parts
Now: $107.95Was: $134.95HKP HK MP5 Raised Picatinny Rail The HK Parts MP5 Raised Picatinny Rail offers the best of both worlds featuring an unimpeded view of the factory iron sights and an elevated mount for your favorite optic. Cowitness? Lower third? ...HKP-21601Now: $107.95Was: $134.95 -
HK MP5, HK33, HK53, HK93 Elbow Spring With Roller - Full Auto Trigger Pack - Used
H&K Heckler & Koch
$4.95H&K Full Auto Trigger Pack Elbow Spring With Roller - USED Used- Good shape. This item is a factory HK German replacement part.HKP-16241$4.95 -
On Sale
HK VP9L MOD 1 Compensator
HKP HK Parts
Now: $151.95Was: $189.95HK Parts MOD 1 Compensator: H&K VP9L The HK Parts MOD 1 compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle flip and recoil, getting you back on target quicker. Each MOD 1 comp includes...HKP-21434Now: $151.95Was: $189.95 -
HK45 Magazine Floorplate - .45 ACP - 10 Round
H&K Heckler & Koch
$9.9510 Round HK 45 Magazine Floorplate This is HK's Newest .45 ACP caliber pistol. Compatible With: HK45 Pistol Please Note: NOT for use on the USP .45 magazines.HKP-02476$9.95