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
PTR 32 Complete Bolt Head - 7.62x39 - US Made
$199.95PTR 32 (7.62x39) Complete Bolt Head - US Made This item is a complete bolt head using a combination of new HK German and new US-made Parts. Bolt Head counts as one US-made compliance part for the 922r compliance. Compatible With: All HK PTR-32 7.62 X...HKP-02280$199.95 -
On Sale
HK91 Handguard - Carbine Length - M-LOK
AIM
Now: $57.95Was: $64.95HK 91, PTR RIFLE LENGTH HANDGUARD - M-LOK This sleek streamlined design is an ultra low profile handguard with generous mounting space to accept all M-LOK accessories. Superior ergonomics and simple, drop-in installation makes this the best HK pattern...HKP-18177Now: $57.95Was: $64.95 -
HK MP5K, SP89 Trigger Housing - FBI Style - 2 Position Pictogram 0,1 Pictogram - Clipped and Pinned - 9mm
H&K Heckler & Koch
$245.95H&K MP5K/SP89 9mm 2 Position (0,1 Pictogram) FBI Style Trigger Housing - Clipped & Pinned This clipped and pinned trigger housing is modified to fit MP5K or SP89 housings. It accommodates all HK German ambidextrous trigger packs and selector...HKP-00402$245.95 -
HK MP5, HK94, SP5K Rear Sight Drum and Base
H&K Heckler & Koch
$109.95Heckler and Koch Rear Sight Drum and Base for HK MP5, HK94, and HK SP5K This is an HK German part that's a great upgrade for the SP5, SP5K, and SP89 or MP5K models. We highly suggest adding the following items to complete the rear sight set that's not...HKP-00073$109.95 -
Out Of Stock
HK MP5 A2 Fixed Buttstock - USED
H&K Heckler & Koch
$149.95H&K Heckler & Koch Used A2 Rear Buttstock for HK MP5 Factory German MP5 A2 buttstock in excellent condition, ready to drop in. These stocks feature authentic date codes for those seeking a classic touch. Don’t miss out. Only a limited...HKP-00680$149.95 -
Out Of Stock
HK XX Marked 9mm Strutted Hammer
H&K Heckler & Koch
$159.95HK XX Marked 9mm Strutted Hammer Compatible With: MP5, 94, SP5 MP5K, SP89, SP5K MP5 40, MP5 10 Clones or other custom buildsHKP-00148$159.95 -
On Sale
HK416, MR556, HK417, MR762 Tactical Grip - Dark Earth
Ergo
Now: $44.95Was: $52.95Ergo Grip PSG1 Style Grip For MR556 & MR762- DARK EARTH Just in and a great upgrade if you want the PSG1 style grip frame for your HK MR556, MR762 & HK416, HK417, G28 firearm. The ergonomically enhanced ERGO Tactical Deluxe Grips fits all AR15,...HKP-17192Now: $44.95Was: $52.95 -
On Sale
HK21 Bolt Head 21-H Hybrid - FMP
RCM
Now: $387.95Was: $494.95HK21 21-H Hybrid Bolt Head for FMP HK21s The newly designed HK21 style Hybrid bolt head integrates the latest "E" style design into your classic HK21. It features the upgraded pivoting extractor style found in HK21E and HK23E files. This hybrid bolt head...HKP-22714Now: $387.95Was: $494.95 -
On Sale
HK MP5, HK91, G3, PTR Magazine - 5 Round - Black - BLEMISHED
HKP HK Parts
Now: $44.97Was: $79.95HK91, G3, MSG90 Magazine - 5 Round - Black - BLEMISHED PITTING COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. 5 Round German Steel 308 Magazine With US Made...HKP-16250-BL-BNow: $44.97Was: $79.95 -
Out Of Stock
Compact Vertical Foregrip with Hand stop - M-LOK
JMK
$88.95Compact Vertical Foregrip with Hand stop - M-LOK The JMK Vertical Foregrips are ideally suited for applications with restricted space. Equipped with a rapid, straightforward M-LOK attachment system, it can be mounted on any configuration with an M-LOK...HKP-22406-M$88.95 -
HK MP5, AP5 Recoil Rod
MKE
$64.95MKE HK MP5, AP5 Steel Recoil Rod Turkish-made steel recoil rod for MP5-style firearms. OEM-quality part that replaces worn or bent recoil rods and is designed to help restore smooth cycling and proper bolt movement on 9mm MP5 and AP5 roller-delayed...HKP-99343$64.95 -
On Sale
HK MP5 Metal Trigger Housing Conversion Kit - AC Unity Grip
HKP HK Parts
Now: $151.95Was: $189.95HK MP5 Metal Trigger Housing Conversion Kit - AC Unity Grip This kit includes everything you need to convert a polymer MP5 trigger group a robust metal housing. Simply use your existing semi-auto SEF trigger pack to complete the conversion. This...HKP-22321Now: $151.95Was: $189.95