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 USP Holster - Infidel Max IWB - RH
Comp-Tac
Now: $54.95Was: $64.99Comp-Tac HK USP Infidel Max IWB RH Holster The Infidel Max Holster is an all-Kydex inside the Waistband holster with cant adjustment holes to allow the user to change from a reverse cant, speed cant and FBI forward cant. Features: All Kydex body for a...HKP-18248Now: $54.95Was: $64.99 -
On Sale
HK91, G3 Stock - AR15 Style - Complete Assembly
PTR
Now: $246.95Was: $274.95PTR HK 91/G3 (7.62x51/.308) AR15 Style Magpul Stock - Complete Assembly AR15/M16 retractable stock combo set up for use on an HK91, G3 & PTR91 style of rifles. This is a perfect compliment for those that want to use The popular Magpul MIL-SPEC Moe...HKP-15614Now: $246.95Was: $274.95 -
On Sale
AR-15 Stabilizing Brace - 5 Position Adjustable - SBA3
SB Tactical
Now: $113.95Was: $134.95SBA3 - 5 Position Adjustable Stabilizing Brace - AR15 Designed for all platforms capable of accepting a mil-spec carbine receiver extension, the SBA3 is a 5-position adjustable, dramatically enhances versatility, and features a minimalist design with...HKP-18646Now: $113.95Was: $134.95 -
On Sale
HK MP5 Flash Hider - .22LR
HKP HK Parts
Now: $39.95Was: $49.95HKP HK MP5 .22LR Flash Hider Transform your HK MP5 .22 pistol by adding a direct thread-on flash hider that perfectly replicates the iconic look of the MP5 9mm 3-lug flash hider. Internal O-ring to ensure a secure engament that wont allow the flash...HKP-21648Now: $39.95Was: $49.95 -
On Sale
HK VP9, VP40 Competition Magwell Extension
HKP HK Parts
Now: $69.95Was: $129.95HKP HK VP9, VP40 Competition Magwell Extension Our 2-piece, steel insert competition VP9/VP40 extended flared magwell is CNC made from heat treated 4140 billet nitrided steel. The upper portion of the magwell is machined from aircraft-grade aluminum and...HKP-21079-MNow: $69.95Was: $129.95 -
HK VP9SK, P30SK Magazine - 10 Round- 9mm
H&K Heckler & Koch
$49.95H&K 10 Round HK VP9SK/P30SK 9mm Magazine New German HK manufacture 10 round 9mm P30SK/VP9SK magazine with standard flush fit floorplate. This magazine is the same for the VP9SK & P30SK. Compatible With: VP9SK P30SKHKP-17376$49.95 -
HK416A5 Stripped Upper Receiver
H&K Heckler & Koch
$489.99HK 416A5 - Stripped Upper Receiver This is the factory correct receiver for a true 416 build as it features the M16 relief cut in the bottom, rear portion of the receiver (shown in last pricture). Compatible With: HK 416 HK MR223 HK MR556 Need a...HKP-18786$489.99 -
HK UMP, USC Recoil Rod Assembly, Complete
H&K Heckler & Koch
$79.95HK USC/UMP 45/40/9mm Recoil Spring/Rod Assembly New HK German. This is great to have as a spare as this is a repair and replacement item. Compatible With: HK UMP 45 HK USC 45 HK UMP 40 HK UMP 9mmHKP-00610$79.95 -
HK UMP, USC Cocking Lever Spring
H&K Heckler & Koch
$8.95HK UMP & USC Cocking Lever Spring A great spare part to have on hand.HKP-01886$8.95 -
On Sale
HK G3 Operator Depot Level Repair Manual
HKP HK Parts
Now: $18.95Was: $23.95HKP HK G3 Operator Depot Level Repair Manual This is an older repair manual and the difference is the sections on field and depot repair. This manual has 124 pages, 35 pages of explanations, instructions, and pictures of the depot-level repair and...HKP-15223Now: $18.95Was: $23.95 -
HK MP5K Trigger Group - Burst 0,1,3,F
H&K Heckler & Koch
$3,299.95Heckler and Koch HK MP5K 4 Position (0,1,3,F) Burst Trigger Group New HK German factory fresh 9mm MP5K 4 position burst trigger group. Each unit comes just as it comes from the factory in Germany and is complete with trigger pack, left and right selector...HKP-00403$3,299.95 -
HK MP5, HK33, HK93 Trigger Housing - Ambi 2 Position 0,1 Pictogram - FBI Style - 9mm, 5.56 / .223
H&K Heckler & Koch
$229.95 - $349.95H&K MP5 & 93/33 (9mm & 5.56/.223) 2 Position (0,1 Pictogram) FBI Style Trigger Housing This ambidextrous housing is designed for compatibility with any ambidextrous style trigger packs. It features a 2 position pictogram (0,1) and is crafted...HKP-00163-M$229.95 - $349.95