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 USPC, P2000, P2000SK Magazine Floorplate - .40 S&W - 12 Round - Finger Rest
H&K Heckler & Koch
$23.9512 Round HK P2000/USPC .40 S&W Floor Plate w/ Finger Rest This item is most commonly used as a replacement item for the HK USPC .40, P2000 12-round floor plate with finger rest but will fit the below HK pistol magazines as well...HKP-01682$23.95 -
On Sale
HK416, MR556, AR-15 Buffer Tube Castle Nut
USA
Now: $7.95Was: $9.99AR-15 Castle Nut for Buffer Tubes - US Made Steel Castle-nut for AR buffer tubes fits both mil-spec and commercial buffer tubes alike. Compatible With: HK416, MR556 AR-15 style platformsHKP-02729Now: $7.95Was: $9.99 -
Out Of Stock
HK VP Series F2 Trigger - Flat Face - Red
Lazy Wolf
$134.95Lazy Wolf F2 Flat Face Trigger for the Heckler and Koch HK VP Series In a collaboration with Lazy Wolf Guns, HK Parts is offering aftermarket triggers for your HK VP9 and HK VP40 handguns. The drop in VP9 series is the greatest trigger ever...HKP-19290$134.95 -
HK P9S Series Recoil Spring
H&K Heckler & Koch
$39.95Factory German HK P9 & P9S Recoil Spring It is no longer supported or available from HK Germany. The P9 and P9S have been out of production for many years. Get a spare while we still have them in stock. Compatible With: HK P9 pistols in 9mm and ...HKP-02046$39.95 -
On Sale
Ambi Trigger Pack - Semi Auto - 9mm - US Made 922r Parts
HKP HK Parts
Now: $247.95Was: $309.95HKP 9mm Ambidextrous US Made Trigger Pack - 4 U.S. 922r Parts HK MP5/94 9mm Semi-Auto Trigger Pack Complete. Assembled and ready install on your firearm. The components that count towards 4 of the 922r compliant parts include the trigger pack box,...HKP-18269Now: $247.95Was: $309.95 -
Out Of Stock
B&T APC9, TP9, SPC9 Magazine with Bumper - 30 Round - 9mm - Translucent
B&T Brugger & Thomet
$49.95B&T 9mm 30 Round Magazine - Translucent w/Bumper B&T factory 30 round 9mm magazine made of high strength semi-transparent polymer. Compatible With: B&T MP9, TP9 B&T APC9 B&T SPC9 B&T GHM9 B&T KH9 ***NOT...HKP-21710$49.95 -
HK MP5K, SP5K Trigger Housing - Universal SEF - Clipped and Pinned - USED
H&K Heckler & Koch
$99.95H&K Heckler and Koch SEF Universal Housing Clipped and Pinned - USED for HK MP5K HK SP5K Finally, a solution everyone was looking for. A one size fits all approach for the MP5K and SP5K style semi-auto shelf. You can easily swap the lower trigger...HKP-21352$99.95 -
On Sale
M-LOK Rail Section - 7 Slot
Magpul
Now: $17.95Was: $21.95Magpul M-LOK 7 Slot Rail Section Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Aluminum Rail Sections allow the attachment of various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc. Machined...HKP-19569Now: $17.95Was: $21.95 -
On Sale
HK91, G3, PTR Trunnion
RCM
Now: $57.95Was: $74.95RCM Trunnion For The HK91/G3 Series - US Made This part is machined from ordnance grade 9310 enhanced steel and heat treated to exact HK specifications. This item is the best USA-made trunnion on the market. Machined to spec and are to the custom ground...HKP-01289Now: $57.95Was: $74.95 -
On Sale
HK P30 Tactical Magwell - Low Profile - Steel
HKP HK Parts
Now: $59.95Was: $74.95HKP HK P30 Tactical Low Profile Magwell - Steel Low profile, every day carry magwell for the HK P30 pistol. The low profile mag-well is designed for the average every day P30/P30L owner. That would like the enhancements and competitive advantage a...HKP-18544-MNow: $59.95Was: $74.95 -
Out Of Stock
HK USP, USPT Magazine - .45 ACP - 12 Round - Standard Floorplate
H&K Heckler & Koch
$59.0012 Round HK USP .45 ACP Standard Floorplate Magazine New HK German USP 45 12-round magazine with standard floor plate (no extended finger rest) as this mag sits flush. Compatible With: HK USP .45 Full-Size Pistols HK USP .45 TacticalHKP-02374$59.00 -
HK21 Recoil Spring
H&K Heckler & Koch
$79.95H&K HK21 (7.62x51/.308) Recoil Spring New HK Factory HK21 triple braided recoil spring. Compatible with early HK21's manufactured by HK and FMP. The 21E requires a different spring.HKP-00238$79.95