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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HK33, HK53, HK93 Trigger Group - 2 Position Housing 0,1 - Safe, Semi Only
HKP HK Parts
$549.95HKP 93, 33, 53 Trigger Group 2 Position Housing 0,1 - Safe, Semi Only Our trigger group offering is the most desirable HK 93,33,53 trigger group available. Now you can upgrade your HK firearm to have...HKP-17246$549.95 -
On Sale
Harris Bipod Adapter - Long - Picatinny
HKP HK Parts
Now: $22.28Was: $34.95Harris Bipod Adapter This mounts to any Picatinny rail and proves a stable platform to add a Harris bipod or other similar-style bipod. This will fit any Picatinny spec rail or rail system. Made in...HKP-00909Now: $22.28Was: $34.95 -
HK MP5 Locking Piece #25 - 60 Degree - High Impulse - .40 S&W, 10mm
H&K Heckler & Koch
$229.95New HK German MP5 40 or MP5 10mm High Impulse Locking Piece Marked #25 This is the 60-degree locking piece that is used for high-impulse ammo, commonly found in +P or +P+ ammo. This locking piece is...HKP-00437$229.95 -
HK MP5 to AR Stock and Adapter
HKP HK Parts
$229.95HKP MP5 to AR Adapter & Stock Complete Each AR stock, brace adapter is made from a solid billet of CNC machined aircraft grade aluminum. Properly buffered with factory correct H buffers to protect...HKP-17119$229.95 -
On Sale
HK416, MR556, HK417, MR762 Tactical Grip - Dark Earth
Ergo
Now: $33.76Was: $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...HKP-17192Now: $33.76Was: $52.95 -
On Sale
HK USPC, HK45C Compact Magazine, Complete - 18 Round
HKP HK Parts / Heckler & Koch
Now: $80.96Was: $89.95Heckler and Koch, HKP 18 Round Magazine for HK45 Compact, HK USP45 Compact Complete 18-round magazine assembled using a factory Heckler and Koch magazine body combined with an HKP magazine extension...HKP-22520Now: $80.96Was: $89.95 -
UCS Universal Carbine Stock - M1913 rail
Magpul
$209.95Magpul UCS Universal Carbine Stock The Magpul UCS (Universal Carbine Stock) is designed to be the ideal lightweight supplement to the vast array of firearms utilizing a vertical M1913 rail on the...HKP-22171-M$209.95 -
On Sale
HK P30 Magwell - Ultra Low Profile
HKP HK Parts
Now: $38.22Was: $59.95HKP HK Parts Tactical Low Profile Magwell for HK P30 The smallest, lowest profile magwell available for the HK P30, now with a fully functional funnel for quicker, smoother reloads. PHKP-22165-MNow: $38.22Was: $59.95 -
HK CC9 Magazine Locking Plate - 12 Round
H&K Heckler & Koch
$5.95H&K CC9 Magazine Locking Plate - 12 Round Locking plate for H&K CC9 12-round magazine. Secures the floor plate and internal components to the magazine body. German-made by H&K. Compatible With:HKP-22145$5.95 -
On Sale
HK MP5K Barrel - .357 Sig - Threaded 1/2x32 with 3 Lug - Gunsmith Special
USA
Now: $44.96Was: $289.95HK MP5K .357 Sig Barrel - 3 Lug - Threaded 1/2x32 - Gunsmith Special Unfinished US-Made MP5K .357 Sig barrel. Please Note: Will require work before being functional. HKP recommends the work be...HKP-99177Now: $44.96Was: $289.95 -
HK33, HK53, HK93 A2 Fixed Buttstock - Surplus - Alpine Green
H&K Heckler & Koch
$139.95Surplus - Fixed Stock - OD Green - HK93,33,53 German military surplus but hand-picked to give you the best of the lot. Ready to install on your HK or clone rifle. Each stock features the correct...HKP-21847$139.95 -
On Sale
HK G36K, G36C Rail - 13 Slot - Black - BLEMISHED
UTG
Now: $22.46Was: $64.95HK G36K/G36C 13 Slot Rail - Black - BLEMISHED CONDITION MAY VARY ONLY 13 SLOT RAIL INCLUDED. NO HARDWARE INCLUDED. COSMETICAHKP-00272-BNow: $22.46Was: $64.95