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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Out Of Stock
HK SL8, G36 Top Rail Screw
HKP HK Parts
$5.95HK SL8 & G36 Top Rail Screw This rail screw is the standard length rail screw used for all SL8 and G36 top rails. With the exception of the dual and single option models. A must have part and an easy part to loose or strip. Grab yours to have...HKP-20330$5.95 -
HK Picatinny Rail For HK Receivers - 15 Slot
HKP HK Parts
$59.95HKP Picatinny Rail For HK Receivers - 15 Slot Mil-Spec all steel CNC'ed picatinny rail in the white, relief cut to fit flush and low profile on HK receivers. The most solid and consistent mounting platform made for mounting scopes and optics to HK builds...HKP-18241$59.95 -
Out Of Stock
HK MP5, MP5K, HK94 Magazine Release Set
HKP HK Parts / Heckler & Koch
$94.95HKP and Heckler and Koch Complete Magazine Release Set for your 9mm HK MP5, HK MP5K, and HK94 - German or American Complete magazine paddle mag release kit that includes everything you need for the standard and paddle mag release on your HK 9mm...HKP-17569$94.95 -
On Sale
HK VP9L, VP9 Match Lever - International Holster - Comp Carry
Comp-Tac
Now: $33.16Was: $81.95Comp-Tac HK VP9L/VP9 Match International Comp Carry Holster - Lever At last a custom made Comp-Tac international OWB holster for your HK pistol that allows you to have the rail mount compensator, comp weight, or match weight installed. Manufactured by...HKP-20112-MNow: $33.16Was: $81.95 -
Out Of Stock
Thread Protector - .45 ACP - 16x1 LH - US
HKP HK Parts
$14.95HKP .45 ACP Thread Protector - Threaded 16x1 LH This .45 caliber thread protector fits all full-size and compact barrels with 16x1 LH threads. Made in the USA from stainless steel with a nitride finish, it's essential for protecting your threaded barrels...HKP-19669$14.95 -
HK91, G3 Telescopic Stock
MKE
$349.95MKE Telescopic Stock for HK G3 and HK91 The MKE telescopic G3 stock is an easy-to-install replacement stock system for HK G3-style firearms. The simple lock/release system is easy to operate, allowing shooters to quickly adjust stock length. Steel rails...HKP-21182$349.95 -
Out Of Stock
M-LOK Vertical Foregrip - MVG
Magpul
$22.95M-LOK MVG® VERTICAL GRIP M-LOK SLOT SYSTEM The Magpul MVG M-LOK Vertical Grip is a high-quality M-LOK foregrip that attaches securely to M-LOK compatible handguards. It is made of durable polymer and provides a comfortable and secure grip for...HKP-17321$22.95 -
HK91, G3, PTR Magazine - 20 Round - Aluminum - USED - FMP
FMP HK CONTRACT
$11.95FMP Portuguese HK91, G3, PTR 20 Round Aluminum Magazine - Used 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-22713$11.95 -
HK MP5K, SP5K Stock or Brace Adapter - Picatinny Rail
HKP HK Parts
$129.95HKP HK MP5K/SP5K/SP89 Picatinny Rail Brace/Stock Adapter Our rail stock adapter allows you to attach any 1913 Style Stock, Brace to your MP5K.The 1913 style stocks & braces lock in place and provide a better Cheek Weld than many traditional stock...HKP-21385-M$129.95 -
TF1913 Pistol Stabilizing Brace - Side-Folding - Picatinny
SB Tactical
$159.99SB Tactical TF1913 Side Folding Pistol Stabilizing Brace - Picatinny Features: Complete assembly, ready-to-install Advanced steel hinge design locks in both folded and extended positions Pull-through design offering quick deployment Rigid polymer...HKP-19776$159.99 -
Out Of Stock
HK MP5, MP5K Optic Mount - Low Profile - Aimpoint T1, H1, T2
B&T Brugger & Thomet
$100.00B&T MP5, MP5K Low Mount For T1/H1 & T2 Aimpoint Ideal for use with the Aimpoint line of T-1/T2 & H-1/H2 type of optics. This mount is the lowest low profile mount available for use with the T1/T2 style of mounting system. This same mounting...HKP-16862$100.00 -
Out Of Stock
HKP 3-Lug Adapter Wrench
HKP HK Parts
$28.95HKP 3 Lug Adapter Wrench HK 3-Lug adapter tool that slides over the male end of the 3-lug adapters commonly used on threaded barrel applications for the addition of suppressors, flash hiders, compensators, silencers, etc. You can then tighten them down...HKP-18240$28.95