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 MP5 UCS Stock and Adapter
HKP HK Parts / Magpul
$317.95HK MP5 Magpul UCS Stock with Adapter The HK Parts UCS adapter and stock for the MP5 pairs our proven stock adapter with Magpul's UCS stock for a compact, adjustable configuration. The UCS stock...HKP-22197$317.95 -
HK CC9 Disassembly Safety Lever
H&K Heckler & Koch
$9.95H&K CC9 Disassembly Safety Lever The CC9 disassembly safety lever prevents accidental discharge during disassembly by blocking the trigger mechanism.HKP-22120$9.95 -
HK UMP Recoil Rod Spring
HKP HK Parts
$9.95HKP UMP Recoil Rod Spring Upgrade or replace your UMP recoil system with this high-quality recoil rod spring from HK Parts. Whether you're maintaining a factory setup or enhancing a custom build,...HKP-22089$9.95 -
HK MR556, MR762 Buttstock Ribbon
H&K Heckler & Koch
$53.95H&K MR556A1, MR762A1 Ribbon for ButtstockHKP-22002$53.95 -
HK MR556, MR762 A4 Disconnector
H&K Heckler & Koch
$18.95H&K MR556/MR762 A4 Disconnector Factory H&K disconnector for use in MR556 A4 and MR762 A4 platforms. CompaHKP-21969$18.95 -
On Sale
HK MP5K Brace with Direct Fit Adapter - .40 S&W, 10mm
HKP HK Parts
Now: $152.97Was: $239.95HKP HK Parts Brace with Direct Fit Adapter for HK MP5K .40, 10mm Designed to adapt UMP style and SB Tactical braces directly to the 40,10 K platform. Made in the USA and available exclusively at HK...HKP-21835Now: $152.97Was: $239.95 -
Out Of Stock
HK MP5K Bolt Group - Complete - 9mm - Suppressed
H&K Heckler & Koch
$2,259.95Heckler and Koch MP5K 9mm Complete Bolt Group - Suppressed Complete factory German MP5K full-auto bolt group assembly configured with an 80-degree #28 German locking piece for suppressed use. This...HKP-21613$2,259.95 -
On Sale
HK P2000 Magazine Extension Kit - +7
HKP HK Parts
$41.43 - $51.95HKP HK P2000 +7 Magazine Extension Kit This listing is for the magazine extension ONLY. This is not a complete magazine. The referenced magazine caHKP-21527-M$41.43 - $51.95 -
On Sale
HK MP5, SP5 Trigger Group - Single Stage - SSTG
Magpul
Now: $374.96Was: $639.95SSTG Magpul trigger group The Single Stage Trigger Group is a blend between the past and future. The trigger pack begins life as a factory German trigger pack before being professionally converted...HKP-21261Now: $374.96Was: $639.95 -
Picatinny 6" Skeletonized Tube with 1913 Folding Mech
JMAC Customs
$227.90JMAC 6" Skeletonized Tube with 1913 Folding Mech This M4 tube adapter replaces the standard buffer tube to ensure the stock folds as flat as possible! Fits most M4 style stocks/braces Features:HKP-21244$227.90 -
Out Of Stock
HK VP Series Curved Trigger Safety Tab Kit - Red
Lazy Wolf
$19.95C1 - Curved VP Series Trigger Tab, Spring Set - Lazy Wolf Guns - Red Replacement trigger safety tab, spring, and roll pin kit as pictured for the HK VP9 series of LWG triggers. Ideal if you need a...HKP-20088$19.95 -
HK VP9SK Grip Panel Right Side - Large - OD Green
H&K Heckler & Koch
$19.95H&K VP9SK Right Side Grip Panel - Large - OD Green New HK German manufactured. Right side large size perfect for spare or for custom stippling projects. Drop-in part for your HK VPSK pistol. CompatiblHKP-18966$19.95