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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Out Of Stock
HK German Vertical Foregrip - Black
H&K Heckler & Koch
$96.95HK German Vertical Foregrip - Black (With slide in for LM/LLM Switch) Compatible With: MP5, MP5K MP5SD MP7A2 G36, G36K, G36C HK 416 HK417HKP-20518$96.95 -
$14.95 -
Out Of Stock
HK MP5K/SP5K/SP89 Vented Horizontal Forearm with Handstop - Black
USA
$44.95MP5K, SP5K, SP89 - Vented Horizontal Forearm with Handstop Each forearm will fit the MP5K or SP89 style of firearms. As an added bonus this item counts as a US made part toward 922r compliance. Each forearm has the latest enhancements and upgrades...HKP-19471$44.95 -
HK UMP 9mm Barrel - Threaded - 3-Lug
Michaels Machines
$549.95HK UMP 9mm Barrel - Threaded - 3-Lug Specifications: 3Lug Threaded Compatible With: UMP 9mmHKP-02278$549.95 -
HK94 Clone Original Vented Barrel Shroud w/ Grip
E&L MFG
$139.95HK94 Clone Original Vented Barrel Shroud w/ Grip This is the OEM HK part. The vertical grip is detachable and will not fit heavier barrels such as Vector or MKE barrels. Please Note: This will NOT fit 3 lug barrels.HKP-00020$139.95 -
HKP 25 Round HK UMP 40 25 Round Magazine - FDE
HKP HK Parts
$49.95HKP 25 Round HK UMP 40 25 Round Magazine - FDE Made from advanced polymer material with steel feed lips just like the German UMP 40 magazine at a fraction of the cost. Compatible With: HK UMP .40 LWRC SMG .40 (This magazine is the factory OEM...HKP-20519$49.95 -
Out Of Stock
HKP G36K Barrel Front End Kit
HKP HK Parts
$889.95G36K Barrel Front End Barrel Kit - 223/556 New production HK G36K style barrel conversion and front end kit. Each kit will include the necessary parts to build a G36/SL8 variant into the G36K barrel length variant as pictured. All you need is this kit to...HKP-18225$889.95 -
Sale
HKP Glock 17 Gen 4 Rail Mount Compensator
HKP HK Parts
Now: $124.95Was: $179.95HKP - Glock 17 Gen 4 Rail Mount Compensator The perfect addition to your Glock 17 Gen 4 firearm with our low profile, aggressive rail mount compensator that flows with the lines of the firearm for a seamless addition. The Glock 17 Comp Weight™ can...HKP-21219Now: $124.95Was: $179.95 -
Sale
HKP Glock 17 Gen 5 Stand Off Device - Black
HKP HK Parts
Now: $64.95Was: $109.95Stand Off Device - Glock 17 Gen 5 The HK Parts stand off is designed to keep the slide in battery to allow discharge when the firearm is pressed against or comes into contact with an object. It is an excellent self-defense addition. The standoff device...HKP-19263Now: $64.95Was: $109.95 -
HKP HK 23E/13E (7.62x51/.308) & (5.56/.223) Firing Pin - Titanium
HKP HK Parts
$49.95HK23E, MM23E, 13E Firing Pin - Titanium Grade 6 weapons grade titanium manufacture. Made in the USA. A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK weapon system. Get the lightest, strongest firing...HKP-17770$49.95 -
$249.95 -
HKP HK MP5 (.40 S&W) Locking Roller +6
HKP HK Parts
$11.95HK US MP540 Locking Roller, +6 The proper roller size is essential for proper headspacing of bolt gap.HKP-17565$11.95 -
Sale
HKP HK MP5 Navy Binary Trigger Group - Engraved - RAL 8K - BLEMISHED
FA Franklin Armory / HKP
Now: $849.95Was: $1,499.95Franklin Armory BFSIII HK-C1 – Trigger Group - RAL 8K HK MP5 Navy PLEASE NOTE: SOLD AS-IS DUE TO THE PICTOGRAM PAINT BEING BLEMISHED - SEE PHOTOS. 3 Position Navy style Engraved Pictograph – HK Binary Trigger Group Our latest and...HKP-21291-BNow: $849.95Was: $1,499.95 -
HKP HK MR556/416 Rear Sight Drum 14.5&" & 16" Barrel
HKP HK Parts
$29.95HKP HK MR556/416 Rear Sight Drum 14.5&" & 16" Barrel Made in the USA.HKP-17775$29.95 -
HKP HK MR556/CR556/MR762 H-Key 20 Rail Segment
HKP HK Parts
$49.95HKP HK MR556/CR556/MR762 H-Key 20 Rail Segment 20 slot rail segment for the new "HKey" style forearms. This rail section is designed to fit and attach to any of the new HKey style forearms now being shipped on the MR556, CR556, MR762 and similar models...HKP-17848$49.95 -
HKP HK P30 Stand Off Device - Black
HKP HK Parts
$109.95Stand Off Device - HK P30 The HK Parts P30 standoff is designed to keep the slide in battery to allow discharge when the firearm is pressed against or comes into contact with an object. It is an excellent self-defense addition. The standoff device slides...HKP-19168$109.95 -
Out Of Stock
HKP HK P30L Comp Weight™ Compensator w/ Rail Adapter - Black
HKP HK Parts
$184.95HKP HK P30L Comp Weight™ Compensator w/ Rail Adapter - Black Compatible With: HK P30L Specifications: Length: 3 3/4 inches Width: 1 3/8 inches Weight: 3.6 oz Torque: 3nM / 26 inch-lbs Includes: Quick Detach Lever Construction: Crafted from...HKP-19039$184.95 -
HKP HK VP9/VP9SK, VP40 Elbow Spring Stop Pin
HKP HK Parts
$6.95HKP HK VP9/VP9SK, VP40 Elbow Spring Stop PinHKP-16779$6.95 -
HKP HK45 +5 Enhanced Magazine Extension Kit
HKP HK Parts
$64.95HKP HK45 +5 Magazine Extension Kit This listing is for the magazine extension ONLY. This is not a complete magazine. The referenced magazine capacity is the total capacity once the extension has been...HKP-21444$64.95 -
Out Of Stock
HKP MP5 10mm Reverse Stretch Parts Kit
HK Parts, Heckler & Koch
$2,099.95MP5 10mm Reverse Stretch Pistol Build Kit Complete German & USA Made Parts ON SALE WHILE SUPPLIES LAST! MP5 10mm Reverse Stretch parts kit complete with all the parts needed for an MP5 10mm semi-auto pistol. Each kit comes with all 6 of the needed US...HKP-19818$2,099.95 -
HKP MP5 40/10 Ambidextrous (0,1) Trigger Pack
HKP HK Parts
$324.95HKP MP5 40/10 Ambidextrous (0,1) Trigger Pack Finally a lower cost alternative to the spendy and hard to find all German HK FBI or 0,1 ambi trigger packs. Now for the first time, we have the ever popular trigger pack available in an all German & US...HKP-17231$324.95 -
HKP MP5 40/10 Fake Suppressor/Barrel Extension - 3-Lug
HKP HK Parts
$69.95HKP MP5 40/10 Fake Suppressor/Barrel Extension - 3-Lug This fake suppressor is used as a barrel extension to bring your H&K MP5 40/10 8.85" barrel to legal conforming standards of 16" so you do not have to register the weapon as an SBR. This fits...HKP-00889$69.95 -
HKP MP5 40/10 Locking Piece - Extra Low Impulse
HKP HK Parts
$49.95MP5 40 & MP5 10mm US Made - Extra Low Impulse Locking Piece Marked 100 Degree For the MP5 40 or 10mm Firearms. Made out of enhanced material and heat-treated to spec. The #100 degree locking piece is an extra low impulse 40/10 locking piece. To be...HKP-18273$49.95 -
Sale
HKP/H&K VP9/VP40/P30/HK45 Red Dot Pistol Mount - Black - BLEMISHED
HKP HK Parts
Now: $36.95Was: $49.95HKP/H&K VP9/VP40/P30/HK45 Red Dot Pistol Mount - Black - BLEMISHED MISSING FINAL FINISH AFTER HOLES WERE DRILLED AS SHOWN IN PICS. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED...HKP-18507-BL-BNow: $36.95Was: $49.95 -
KDG HK MR556 13.75" M-LOK Rail System - FDE
KDG Kinetic Development Group
$399.95Rail System - 13.75" - Brown - M-LOK - HK MR556 The New KDG HK 556 M-LOK rails are direct mount rail system, replacing the factory HK 556 rail systems. These new rails are identical in design to their big brother, the KDG HK 762 M-LOK Rail system. Like...HKP-19243$399.95 -
Lazy Wolf VP Series C1 Curved Trigger - Purple Tab
Lazy Wolf
$134.95C1 - Curved VP Series Trigger - Lazy Wolf Guns - Purple Tab In a collaboration with Lazy Wolf Guns, HK Parts is offering aftermarket triggers for your HK VP9 & VP40 handguns. The drop in VP9 series trigger is the best trigger ever developed after...HKP-19814$134.95 -
Lee Sporting HK MP5 Complete Trigger Group
Lee Sporting
$549.95Lee Sporting Complete Trigger Group - MP5 C/P Ergonomic upgrade to OEM grip. 4.3oz lighter than OEM trigger group. Housing made from MJF PA11 nylon. Bespoke ejector lever CNC cut from 4140. Compatible With: HK PTR Dakota Tactical Other clones that...HKP-20465$549.95 -
Lee Sporting, Magpul HK MP5 Complete Trigger Group Flat Trigger
Lee Sporting, Magpul
$549.95Lee Sporting Complete Trigger Group - MP5 C/P - Flat Trigger Ergonomic upgrade to OEM grip. 4.3oz lighter than OEM trigger group. Housing made from MJF PA11 nylon. Bespoke ejector lever CNC cut from 4140. Compatible With: HK PTR Dakota Tactical...HKP-20482$549.95 -
Lee Sporting, Magpul HK MP5 Complete Trigger Group Flat Trigger Push Pin
Lee Sporting, Magpul
$549.95Lee Sporting Complete Trigger Group - MP5 Push Pin - Flat Trigger Ergonomic upgrade to OEM grip. 4.3oz lighter than OEM trigger group. Housing made from MJF PA11 Nylon. Bespoke ejector lever CNC cut from 4140. Compatible With: HK PTR Dakota...HKP-20483$549.95 -
Magpul HK MP5 SL Handguard
Magpul
$59.95Magpul HK MP5 SL Handguard MOE SL Handguard is cerakoted in the popular RAL8000 color for those wanting to switch out the factory handguard and upgrade the color of their furniture. The MOE SL Hand Guard, Carbine-Length – AR15/M4 for firearms with...HKP-21189$59.95 -
Magpul MOE Stock MIL Spec - Black
Magpul
$44.95Magpul MOE Stock MIL SPEC - Black Magpul Industries MOE Carbine Black Stock Complete - MIL Spec Compatible With: MR556 & HK 416 equipped with mil-spec buffer tubes AR-15 platforms with mil-spec buffer tubesHKP-19393$44.95 -
Sale
Match Weight HK P2000SK w/o Picatinny Rail - Aluminum - Black
Match Weight
Now: $99.95Was: $194.99Match Weight HK P2000SK w/o Picatinny Rail - Aluminum - Black Take your P2000SK (Heckler & Koch) 9mm to the next level with our Aluminum Compensator. The 2 piece Match Weight compensator attaches with ease and only takes a few minutes...HKP-19822Now: $99.95Was: $194.99 -
Sale
Match Weight HK VP9SK w/ Picatinny Rail - Black
Match Weight
Now: $129.95Was: $194.99Match Weight HK VP9SK w/ Picatinny Rail - Black Take your VP9SK to the next level with our Aluminum Compensator offered in (2) styles, with and without picatinny rail. Each Match Weight Compensator is CNC machined in our factory...HKP-19883Now: $129.95Was: $194.99 -
Meprolight HK P2000/P2000SK Tru-Dot Rear Night Sight - Green
Meprolight
$64.95Meprolight HK P2000/P2000SK Tru-Dot Rear Night Sight - Green Features: Unequaled low light performance Brightest night sights available today Used by Military & Law Enforcement All Tru-Dot sights are covered by a 12 years usable illumination...HKP-16594$64.95 -
Sale
Meprolight Glock Tru-dot Front Sight
Meprolight
Now: $33.95Was: $49.95Meprolight- Tru-dot Front Sight - Glock Models Compatible With: G17/19/20/21/22/23/34 Meprolight combat-proven self-illuminated adjustable night sights enable you to upgrade your capabilities to hit stationary or moving targets under low-light...HKP-20314Now: $33.95Was: $49.95 -
Michaels Machines HK UMP .45 Semi-Auto Bolt Group - Complete
Michaels Machines
$749.95Michaels Machines HK UMP .45 Semi-Auto Bolt Group - Complete MM’s UMP Tungsten filled UMP .45 bolt carrier complete. Heat treated, parkarized and polished for the best look and function possible, as an added bonus it now includes German HK...HKP-20627$749.95 -
MM HK 23E (5.56/.223) Saw Feed Box Adapter
Michaels Machines
$249.95Saw Box (M249) Adapter For HK23E Or MM23E Belt FedsHKP-02072$249.95 -
MM HK UMP (.40 S&W) Conversion Kit
Michaels Machines
$999.95HK UMP 40 Caliber Conversion Kit With this UMP Conversion kit, UMP .45 sub guns can be converted to .40 caliber. Machined bolt carriers are available for USC/UMP conversion sub guns. This is a simple drop-in conversion. The time required to change...HKP-18754$999.95 -
Out Of Stock
MM HK UMP (9mm) Full Auto Bolt
Michaels Machines
$699.95HK UMP 9mm - Full Auto Bolt - Stripped The full auto bolt carrier is for HK UMP rifles. The full-auto bolt carrier will not work in the HK USC conversion rifles. One of the finest aftermarket carriers you can buy. Features: Tungsten filled Heat...HKP-02288$699.95 -
Out Of Stock
MM HK UMP/USC (9mm) Semi Auto Bolt Carrier
Michaels Machines
$699.95HK UMP/USC (9mm) Semi Auto Bolt Carrier The semi-auto bolt group is needed for HK USC to HK UMP caliber conversions. The full-auto bolt carrier will not work in HK USC rifles. Specifications: Tungsten Filled Heat Treated Parkerized &...HKP-02283$699.95