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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HK MP5, MP5K Scope Tab - Weldment
HKP HK Parts
$9.95MP5, MP5K Sight Tab - Weldment HK MP5, MP5K 17-4 Stainless H900 rear sight tab. The most correct MP5, MP5K rear sight base available. If you want your build to look as factory correct as possible then this sight base is an absolute must. Compatible...HKP-17503$9.95 -
Out Of StockOn Sale
HK UMP Magazine - 30 Round - 9mm - FDE
HKP HK Parts
Now: $24.95Was: $49.95HK Parts 9mm magazine - FDE for HK UMP THIS SHADE OF FDE HAS BEEN DISCONTINUED. STOCK UP AT HALF PRICE BEFORE THEY ARE SOLD OUT FOR GOOD. UMP 30 round magazine for the UMP. Each magazine features enhanced steel feed lips, and a 30-round magazine...HKP-20481Now: $24.95Was: $49.95 -
G.I. Tanto 7" Knife
Cold Steel
$34.99G.I. Tanto - Cold Steel Knife The G.I. Tanto is a no-nonsense tactical knife that comes with a legion of practical uses. The GI Tanto's broad blade, integral quillon guard, and polypropylene handle scales exemplify a tactical knife stripped down...HKP-20329$34.99 -
HK VP9, P30 Magazine Spring - 17 Round
HKP HK Parts
$8.95Extended Magazine Spring - HK 17 Round Magazine For Use With The +4 or+5 Extension - HK VP9, HK P30 This Extended Magazine spring fits VP9 and P30 9mm 17 round magazines with the HK Parts +4 and +5 Extension Base Plates. A must-have item when using...HKP-19297$8.95 -
HK91, G3 Buttstock Set with Backplate - OD Green - Hand Picked
H&K Heckler & Koch
$84.95Original G3, 91, PTR German Army Used Surplus O.D. Green Stock Set - Complete Factory HK German Production. Each stock set is used but in perfect working order. Each set was hand picked and the best sets we have in stock. Includes: Slimline...HKP-18237$84.95 -
HK MP5K, SP5K Folding Stock - 10"
Zenith
$99.95Zenith HK MP5K, SP5K, SP89 Folding Stock Folds to the side for compact storage while providing a solid, stable shoulder stock when deployed. No modifications required on in-spec MP5K receivers. Specifications: Polymer and fiberglass reinforced Weight:...HKP-22419$99.95 -
Out Of Stock
HK33 Wide Handguard Black - Surplus
H&K Heckler & Koch
$99.95HK 33 Wide Handguard Black - Surplus Surplus condition, with minor scratches and wear on the polymer exterior in very good shape overall. 11.5 inches long. The aluminum heat shielding is still intact, riveted to the inside of the handguard. Compatible...HKP-20132$99.95 -
Out Of Stock
HK SP5K Mag Release Upgrade Kit - 9mm - Drop In Paddle
HKP HK Parts
$74.95HKP HK Parts Anti-Rattle Roller Tipped "Paddle" Magazine Release Install Kit for HK SP5K No modifications! No refinishing! Complete drop-in kit included. New USA made busing for a drop-in install kit for the HK SP5K. This kit will allow any end-user to...HKP-18192$74.95 -
HK MP5, HK53 Handguard - Tri-Rail
B&T Brugger & Thomet
$275.00B&T MP5, HK53 Tri-Rail Handguard The B&T handguard 3x NAR is a modular forend system designed for the HK MP5 submachine gun. It offers a versatile and customizable mounting platform for various accessories such as lights, lasers, and grips. The...HKP-16885$275.00 -
On Sale
Sig Sauer P320 M17 Compensator
HKP HK Parts
Now: $119.95Was: $189.95HKP SIG P320 M17 Compensator Our P320 M17 compensator reduces recoil and muzzle flip. Each unit is 100% US-made and finished in durable black cerakote. Our M17 compensator features a Picatinny rail to mount lights and lasers. Compatible With: SIG...HKP-21123Now: $119.95Was: $189.95 -
HKP Range Bag - Small
HKP HK Parts
$29.95Get your hands on our new premium range bags. This range bag is compact while being able to hold a lot of gear. This range bag will easily carry a couple pistols, holster, several magazines & pouches, ammo, eye & hearing protection, and other...HKP-20740$29.95 -
HK VP9SK, P30SK, P2000SK Magazine Spring - 10 Round
H&K Heckler & Koch
$6.95Magazine Spring A great wear and replacement item as this is a consumable part and prone to wear and tear. If your slide is not locking back on the last round or you are having issues with reliable feeding, the magazine spring may be fatigued and...HKP-01480$6.95