All Parts
At HK PARTS, we bring you a wide array of high-quality H&K accessories and components for your favorite firearms. Whether you're upgrading your H&K pistol or rifle, or even looking for parts kits, we've got you covered. Discover a range of top-rated components for popular models like VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, we have it all. Enhance your firearm's performance and functionality with our premium components.
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H&K MP5, MP5K & SP5K Cocking Support Detent
H&K Heckler & Koch
$9.95Cocking Tube Support Detent For The MP5, 94, MP5K, SP89, & SP5KHKP-01103$9.95 -
H&K P30, HK45, USPC Recoil Spring
H&K Heckler & Koch
$18.95New HK German Pistol Recoil Spring This part is ideal for repair or a replacement item as this is a high-wear item. This spring is the factory-correct flat-style compression spring. Compatible With: HK 45C, HK45C Tactical HK USPC .45, USPC Tactical HK...HKP-01673$18.95 -
H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Buttstock Locking Piece
H&K Heckler & Koch
$14.95HK G36 & UMP Buttstock Push Button This is a factory HK German replacement button for the HK G36 and HK UMP stock.HKP-02468$14.95 -
Heinie Optics Ready HK VP9 Ledge Straight Eight Set for Suppressor 2020
Heinie
$205.95Heinie Optics Ready HK VP9 Ledge Straight Eight Set for Suppressor 2020 This sight set features our rear Ledge design. The military inspired sight design combines the best features of our Classic and SlantPro with a few of its own that sets it apart from...HKP-19998$205.95 -
HK G36, SL8 Fixed Sights & Optic Rail
USA
$199.95HK SL8, G36 Sight Rail With Front & Rear Fixed Sights US made SL8 & G36 Picatinny rail with fixed iron sights. Each rail requires 3 hardware sets to mount. Compatible With: HK SL8, HK Sl8-1 G36, G36K, G36CHKP-19717$199.95 -
HKP HK P30 EDC - Magwell
HKP HK Parts
$59.95EDC Tactical Magwell - HK P30 - Magwell Our EDC magwell was redesigned for a much faster and reliable mag reloads. With a increased funnel area, the EDC magwell consistently guides you to the correct position resulting in no-look magazine insertions and...HKP-21429-M$59.95 -
HKP MP5 F & MP5 40,10 Recoil Rod Assembly
HKP HK Parts
$49.95MP5 F, MP5 40/10 Recoil Spring Rod Assembly Complete - Extra Power This is the correct MP5F or MP5 40/10 Recoil Rod assembly with the proper parts and size. Most commonly used for MP5's that are using +P or +P+ ammunition or any high impulse 9mm. Or for...HKP-17833$49.95 -
HKP MP5, MP5K Rear Sight Base - Billeted
HKP HK Parts
$17.95Billeted MP5, MP5K Rear Sight Base - Weldment New all stell HK MP5, MP5K billeted rear sight base. The most correct MP5, MP5K rear sight base available. The only billeted factory correct sight base with the factory HK German side axis grooves. If you...HKP-18087$17.95 -
HKP MP5K 9mm Trunnion
HKP HK Parts
$57.95HK MP5K Trunnion - USA US made to exact factory HK specifications for the HK MP5K type builds. Machined completely from ordnance grade steel and heat treated to factory specs. These are the best USA made trunnions on the market. Machined to HK spec...HKP-17964$57.95 -
HKP Single Point Sling - Dark Earth
HKP HK Parts
$29.95HKP Single Point Sling - Dark Earth This sling is a must-have for those who prefer operating with a single-point sling over the traditional 3-point HK sling. Features: Super thick all Dark Earth heavy-duty corduroy nylon to withstand years of heavy...HKP-09051$29.95 -
Sale
Sig Sauer SIG P320-M17/M18 17-Round 9mm Magazine - Black
Sig Sauer
Now: $35.95Was: $49.99Sig Sauer SIG P320-M17/M18 17-Round 9mm Magazine - Black Compatible With: SIG P320 M17/M18HKP-20061Now: $35.95Was: $49.99 -
Sale
Trijicon HK VP, P30, HK45C HD Night Sight Set - Yellow
Trijicon
Now: $150.99Was: $165.00Trijicon HK VP, P30, HK45C HD Night Sight Set - Yellow The HD Night Sights were specifically created to address the needs of tactical shooters. The three-dot green tritium night sight set front sight features a taller blade and an aiming point ringed in...HKP-14558Now: $150.99Was: $165.00 -
Universal SP5/MP5 Clipping & Pinning Service
USA
$149.95HK Clipped & Pinned Service - Universal SP5/MP5 At HK Parts we offer our own HK trigger housing clip & pin services. No one does a better job with quicker turn around then we do. We will clip and pin any "push pin" plastic housing to the SP5 Spec...HKP-20472$149.95 -
Sale
ETS Glock 22/23/27 30-Round .40 S&W Magazine - Translucent
Elite Tactical Systems
Now: $14.95Was: $21.95ETS Glock 22/23/27 30-Round .40 S&W Magazine - Translucent Features: Standard 30-round capacity Compatible with Glock and aftermarket floorplates Easy disassembly with our specially designed baseplate Ergonomically designed floorplate makes it easy...HKP-18768Now: $14.95Was: $21.95 -
Out Of Stock
Geissele HK MR556/416 14.5" Super Modular Rail System - FDE
Geissele
$549.95Geissele HK416, MR556 14.5" Modular Rail - Desert Dirt Color (DDC) 13.625" overall length Geissele HK 416, MR556 free float rail with HK 416 14.5" barrel and MR 556 16.5" barreled upper. This is a direct replacement item for your HK MR556 and 14.5"...HKP-16462$549.95 -
Out Of Stock
GSG9 HK G36 FBI 0,1 Lower Complete
GSG9
$399.95HK GSG9 G36, G36K, G36C - FBI (0,1) Lower New HK US FBI (0,1) G36 lower complete with internals. This is also a popular item for use on the SL8 to G36 conversions. Please note: Do NOT dry fire.HKP-20181$399.95 -
GSG9 HK SL8, HK G36 Magazine Release Spring
GSG9
$4.95HK G36 & SL8 Magazine Release Spring - USA Mag release spring for all G36 & Sl8 models. A must have spare part. Made in the USA. G36 G36K G36K SL8 Other custom G36 type buildsHKP-18254$4.95 -
H&K MP5,94 & 93,33 Fixed Wood Stock
H&K Heckler & Koch
$399.95H&K MP5,94 & 93,33 Fixed Wood Stock Never before has there been a commercially available wooden stock for the HK 93 & MP5 series of firearms. The wood stock is a factory surplus walnut stock incorporated with the factory 93/33 buffer assembly...HKP-16328$399.95 -
H&K G3 Standard Buffer Locking Plate
H&K Heckler & Koch
$1.49H&K G3 Standard Buffer Locking Plate This is the plate used with the large buffer screw in the standard buffer.HKP-16982$1.49 -
H&K HK /MR556416 A5 Ambidextrous Complete Selector Lever Set - RAL 8K
H&K Heckler & Koch
$179.95HK 416A5 SEMI & MR556 Ambidextrous Selector Lever Set Complete - RAL 8000 New HK German manufacture. Complete kit to upgrade the selector lever set on the MR556 to the newer HK 416A5 semi style of levers. A drop in upgrade for the MR556 & CR556...HKP-17603$179.95 -
H&K HK G36/SL8/MP7 Gas Block Pin
H&K Heckler & Koch
$8.95H&K HK G36/SL8/MP7 Gas Block Pin The G36/SL8/MP7 gas block pin is the largest out of HK's line up (UMP/USC, 415/MR556, 417/MR762).HKP-16727$8.95 -
H&K HK Mark 23 Extractor Spring
H&K Heckler & Koch
$8.95Extractor Spring For HK Mark 23 Or SOCOM Pistol New HK German factory nickel-plated extractor spring. A great spare to have on hand and one of the highest wear and replacement parts on the Mark 23. Compatible with all models and years of the Mark 23...HKP-01430$8.95 -
H&K HK MR556/416 Magazine Release Button
H&K Heckler & Koch
$16.95HK MR556 & HK 416 Magazine Release Button New HK German Manufacture. Compatible With: HK MR556 HK416 AR15, M4 & M16 firearmsHKP-02656$16.95 -
H&K HK MR556/HK416 FFRS Retaining Spring
H&K Heckler & Koch
$7.99H&K HK MR556/HK416 FFRS Retaining Spring The retainer spring retains the handguard locking pin on the Free Floating Rail System (FFRS). These can become damaged with the removal of the handguard screws. Once the spring is damaged, they have to be...HKP-02617$7.99 -
H&K HK MR762/417/G28 Ambidextrous Sling Adapter
H&K Heckler & Koch
$129.95MR762, HK417 & G28 Ambidextrous Sling Adapter HK German manufactured MR762, MR308 & HK 417 Sling Adapter Backplate. This backplate has ambidextrous sling attachment points for both the left and right side of the firearm.HKP-16994$129.95 -
H&K HK P2000 .357 Barrel - Black
H&K Heckler & Koch
$329.95HK P2000 .357 Barrel - Black This is a great spare or replacement barrel to have on hand. This is a popular barrel to convert the P2000 .40 to .357.HKP-01419$329.95 -
$7.95 -
Out Of Stock
H&K HK USP .45 ACP Full Size Standard Length Barrel - Black
H&K Heckler & Koch
$379.95HK USP .45 ACP Full Size Standard Length Barrel - Black This part can be a replacement barrel for the USP Tactical if you do not want to have the threaded barrel installed. Easy drop-in installation. It can also be used to convert the USP Tactical .45 to...HKP-01520$379.95 -
H&K MP5F, MP5 40,10 Factory Recoil Spring
H&K Heckler & Koch
$14.95HK German MP5 F 9mm & MP5 40/10 Recoil Spring - New Updated Version New latest HK German manufacture MP5 40/10 replacement recoil spring. Hard to find and a high wear and replacement item. Each spring replaces the MP5F recoil spring for the MP5 9mm...HKP-01061$14.95 -
Sale
H&K P30 T-Shirt - Medium - Black
H&K Heckler & Koch
Now: $12.95Was: $18.95Factory HK P30 T-Shirt - Black Genuine Heckler & Koch apparel. Black short sleeve t-shirt with red HK logo on front left chest. Back features smoking "No Compromise" P30 handgun design. 100% preshrunk cotton.HKP-16512Now: $12.95Was: $18.95 -
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Firing Pin Spring
H&K Heckler & Koch
$9.95New HK German USC & UMP Firing Pin Spring This is a common wear and breakage item. This item also frequently becomes lost by end users when field stripping the UMP and USC Bolts. Compatible with all HK UMP & USC riflesHKP-00262$9.95 -
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Magazine Release Spring
H&K Heckler & Koch
$9.95HK UMP & USC Magazine Release Spring HK German factory mag release spring for all USC and UMP mag releases. Compatible With: USC lowers UMP lowersHKP-01899$9.95 -
H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Sear
H&K Heckler & Koch
$19.95HK Complete Sear G36, UMP, USC & SL8 Genuine German Heckler & Koch part. Compatible With: HK UMP HK USC HK G36 HK SL8HKP-01850$19.95 -
H&K USC (.45 ACP) Carbine Mag Release
H&K Heckler & Koch
$19.95H&K USC (.45 ACP) Carbine Mag Release This is a great replacement as they are prone to breakage & wear. Please Note: For those that have a USC with a bullet button and are moving to a free state and want to revert back to the...HKP-02196$19.95 -
H&K Vertical Foregrip
H&K Heckler & Koch
$96.95H&K Vertical Foregrip (With Slide in for LM/LLM Switch) Compatible With: MP5, MP5K MP5SD MP7A2 G36, G36K, G36C HK 416 HK417HKP-18465$96.95 -
HKP HK 93/53/33 & G3/91 (5.56/.223) & (7.62x51/.308) Muzzle Brake - Threaded 15x1 RH
HKP HK Parts
$24.95HKP HK 93/53/33 & G3/91 (5.56/.223) & (7.62x51/.308) Muzzle Brake - Threaded 15x1 RH - CA/NY Compliant This muzzle device is a partially milled version (not completely milled) of the factory HK birdcage style flash hider found on the...HKP-12746$24.95 -
HKP HK MP5K Vertical Grip - OD Green
HKP HK Parts
$34.95MP5K Vertical Grip O.D Green - USA New OD green MP5K K-Grip handguard for MP5K and the ever popular MP5K-Reverse stretch models. Now you can further customize your MP5K/ SP5K with this new color grip and, best of all, it counts as 1 U.S compliant part...HKP-20592$34.95 -
Sale
HKP SIG P320C Compensator
HKP HK Parts
Now: $139.95Was: $189.95HKP SIG P320C Compensator Our P320 P320C compensator reduces recoil and muzzle flip. Each unit is 100% US-made and finished in durable black cerakote. Our P320C compensator features a Picatinny rail to mount lights/lasers. Available exclusively at...HKP-21092Now: $139.95Was: $189.95 -
KCI 30 Round HK MP5 Subsonic Labeled Magazine
HKP HK Parts
$44.95KCI 30 Round HK MP5 Subsonic Labeled Magazine Each 9mm Magazine Features: Latest generation and factory fresh, individually sealed magazine 30-round capacity 9mm caliber marked (9mm x 19) Curved for more reliable feeding with steel chrome follower All...HKP-21131$44.95 -
Magpul M-LOK 7 Slot Rail Section
Magpul
$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-19569$21.95