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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
HK VP9SK, P30SK Magazine, Complete - 22 Round
HKP HK Parts / Heckler & Koch
$89.9522 Round Magazine with Black +10 Extension - 9mm - HK VP9SK & P30SK Ideal for competitive shooters that would like a 22 round robust steel and alloy magazine. Each mag comes fully assembled and ready for use. HK Parts takes an existing 10 round...HKP-20067$89.95 -
HK P7 Series Detent Spring - Piston Plunger
H&K Heckler & Koch
$7.95HK P7 Series Piston Plunger, Detent Spring Compatible With: PSP P7M8 P7M10 P7M13HKP-01327$7.95 -
On Sale
HK G36, G36K Folding Stock
GSG9
Now: $102.95Was: $115.00GSG9 Full Length Stock for HK G36 HK G36 10.5" Stock complete for G36 firearms. The G36, G36K stock is the longest stock option for the G36 family of firearms. For those that would like a shorter stock, choose the G36C length stock. Each stock comes...HKP-18219Now: $102.95Was: $115.00 -
On Sale
HK P30L, P30LS Compensator V2 - Quick Detach
HKP HK Parts
Now: $119.95Was: $149.95HKP Quick Detach Compensator V2 for HK P30L and HK P30LS 9mm and .40 S&W Easy on, easy off - Quick Detach technology. The HK Parts P30L Comp Weight™ is the world's first quick detach Comp Weight™, compensator. That slides effortlessly...HKP-18083Now: $119.95Was: $149.95 -
HK USP Magazine Floorplate - .45 ACP - 10 Round - Extended
H&K Heckler & Koch
$12.95H&K 10 Round HK USP .45 ACP Extended Floor Plate This is a great part to stock up on as the 10-round tabs are known for breakage, or if you have large hands, the extended floorplate is a must-have upgrade. Compatible With: HK USP .45 Magazine...HKP-01281$12.95 -
Trigger Pack Hammer Spring - 5.56 / .223, 7.62x51 / .308 - Used
H&K Heckler & Koch
$4.95HK German Rifle Hammer Spring For All .308 & .223 Semi & Full Auto Trigger Packs The rifle 308/5.56 hammer spring is a popular upgrade in 9mm builds experiencing light primer hits. This is the factory correct 25 lb. weight for positive detonation...HKP-18066$4.95 -
HK MP5, HK94, SP89, SP5K Cocking Handle
H&K Heckler & Koch
$44.95HK MP5, 94 & MP5K, SP89, SP5K Cocking Handle - German New factory HK German latest manufactured and updated style. This part is the current model that HK is equipping all new HK MP5/MP5K variants with. Made to last and the nicest of all the...HKP-00095$44.95 -
Out Of StockOn Sale
HK MP5, HK90 Series Hammer Axle
MKE
Now: $1.98Was: $2.99MKE HK MP5 Hammer Axle MKE Hammer axle for the 90 series style of trigger packs. Each axle pin or pivot pin measures .237 inches (6.0mm). A great spare and must have spare part for anyone that owns an HK 90 series of firearm or trigger packs. Compatible...HKP-22227Now: $1.98Was: $2.99 -
HK MP5 A2 Buttstock - .22 LR
HKP HK Parts / Heckler & Koch
$179.95HKP and Heckler and Koch .22 LR A2 Stock for HK MP5 Upgrade your HK MP5 .22 rifle with the precision-engineered A2 fixed stock from Heckler and Koch and HK Parts. Designed specifically for the .22 LR, this stock provides a solid, stable shooting...HKP-21937-M$179.95 -
On Sale
HK45 Straight Trigger
Grayguns
Now: $79.95Was: $94.95Grayguns HK45 Straight Trigger The Grayguns HK45 straight trigger is a first-of-its-kind in the market. The trigger reduces over-travel while featuring a 90 degree optimal trigger break. Crafted in the US from heat-treated tool steel to...HKP-21496Now: $79.95Was: $94.95 -
On Sale
Century Arms AP5 3-Point Sling - Complete
MKE
Now: $30.95Was: $34.99MKE AP5 3 Point Sling - Complete This is a Factory OEM Sling included with the AP5. Can be utilized on any HK 90 series of firearms. Compatible With: Century Arms AP5 HK MP5 & SP5 HK MP5K & SP5K HK94HKP-21187Now: $30.95Was: $34.99 -
On Sale
HK P2000SK Compensator
HKP HK Parts
Now: $151.95Was: $189.95HKP HK P2000SK Compensator The HK Parts P2000SK Compensator will add a sleek and tactical look to your P2000. With the quick and easy addition of our compensator you will add plenty of benefits. This compensator reduces recoil and therefore allows you...HKP-20885Now: $151.95Was: $189.95