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, MP5K Flash Hider - 3-Lug - 9mm
HKP HK Parts
$99.95HKP HK MP5 9mm Flash Hider - 3-Lug Easily attaches to the end of any factory specification 9mm 3 lugged barrel. This flash hider does not require the of threads as it attached to the 3 lug tip. Also a great addition for any of 3 lug barrels found on in...HKP-17228$99.95 -
HK UMP, G36 Selector Lever
HKP HK Parts
$8.95HK UMP & G36 Left Side Safety Selector Lever With Axle - Replacement selector for HK PARTS TRIGGER GROUP HK Parts selector lever for the left side of our own 2 position FBI U.S housing for the UMP pictogram lowers. Compatible With: U.S FBI 2...HKP-20180$8.95 -
Out Of Stock
HK P2000 Tactical Barrel - 9mm - 4.28" - Threaded 1/2x28 RH
RCM
$225.00RCM HK P2000 9mm Tactical Barrel - Threaded 1/2x28 RH Each P2000 tactical barrel is crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. It is the finest threaded replacement barrel for the HK P2000 9mm...HKP-16700$225.00 -
HK VP9, VP40, P30, USPC, P2000 Mag Pouch - Single
Comp-Tac
$38.95Comp-Tac HK VP9/VP40/P30/USPC/P2000 Single Mag Pouch The Comp-Tac single magazine pouch is an outside the waistband holder to carry a spare magazine for competition, concealed carry or general use. The Comp-Tac single magazine pouch provides a rigid...HKP-17498$38.95 -
Out Of Stock
HK MP5, MP5K, HK94K, SP89, SP5K - Tac Latch
Other
$69.95New Tac Latch (latest Generation) Paddle Style Magazine Release For The HK94, SP89 & SP5K Family Of Firearms HK's were designed to have a quick one-handed release capability for the magazine (paddle mag release). However, the semi-auto...HKP-02792$69.95 -
HK416, MR556 Dual Magazine Clamp
HKP HK Parts
$49.95HKP HK MR556/416 Dual Magazine Clamp Securely hold two HK Maritime 416 magazines together for fast mag swaps. Precision-machined from billet aluminum and cerakoted in the popular RAL8000 or classic black, our dual mag clamp is a must for those...HKP-21553-M$49.95 -
On Sale
Sig P365 +3 Magazine Extension
Tactical Precision MFG
Now: $18.71Was: $44.95TPM Sig P365 +3 Magazine Extension This extension is made from machined 6061 Aluminum. This magazine extension will increase capacity, increase reload speed and mag drops, and overall functionality of your pistol. Available in various colors to customize...HKP-21278-MNow: $18.71Was: $44.95 -
HK VP9 MOD 1 Compensator
HKP HK Parts
$179.95HK Parts MOD 1 Compensator: HK VP9 The HK Parts MOD 1 compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle flip and recoil, getting you back on target quicker. Each MOD 1 comp includes both...HKP-21223$179.95 -
HK91, G3, PTR 91 Spare Parts Kit
HKP HK Parts / Heckler & Koch
$149.95HKP HK G3, HK 91, PTR 91 Spare Parts Kit Spare parts kits for the most commonly worn parts needed to keep your HK G3 going. This offering also includes a pouch to safely store all your replacement parts and needed tools to have on hand when required...HKP-20684$149.95 -
HK USP 9mm, .40 S&W Recoil Rod Assembly
H&K Heckler & Koch
$64.95H&K HK USP 9mm/.40 S&W Recoil Rod Assembly New HK German USP full size USP 9/40 recoil assembly complete. A great spare part to have on hand as the recoil spring is a high-wear item. Compatible With: HK USP 9mm HK USP .40HKP-01458$64.95 -
HK MP5 Magazine Spring - .40 S&W / 10mm - 30 Round
HKP HK Parts
$4.95HKP MP5 40/10 30 Round Magazine SpringHKP-16509$4.95 -
Out Of Stock
HK MP5/K Magazine Loader
B&T Brugger & Thomet
$24.00B&T HK MP5/K & SP5/K Magazine Loader The world’s fastest magazine loader. The B&T magazine loader loads your MP5 magazines directly from the ammo box tray into the magazine in a fraction of the time required when loading manually. ...HKP-21687$24.00