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 HK VP9SK Left Side Grip Panel - Large - Gray
H&K Heckler & Koch
$19.95H&K HK VP9SK Left Side Grip Panel - Large - Gray New HK German manufactured. Right side large Size perfect for spare or for custom stippling projects. Drop-in part for your HK VPSK pistol. Compatible With: HK VP9SKHKP-18955$19.95 -
H&K HK VP9SK Left Side Grip Panel - Medium - Gray
H&K Heckler & Koch
$19.95H&K HK VP9SK Left Side Grip Panel - Medium - Gray New HK German manufactured. Left side medium size perfect for spare or for custom stippling projects. Drop-in part for your HK VPSK pistol. Compatible With: HK VP9SKHKP-18586$19.95 -
H&K Loaded Chamber Indicator Compression Spring
H&K Heckler & Koch
$7.95H&K Loaded Chamber Indicator Compression SpringHKP-02220$7.95 -
H&K MP5 40/10 +2 Roller
H&K Heckler & Koch
$19.99MP5 40,10 +2 Roller New HK German MP5 40/10 +2 roller. Hard to find and needed for headspace adjustments if needed. Great spare to have on hand and no longer in production. Each roller is priced per piece.HKP-00334$19.99 -
H&K MP5 40/10 -4 Roller
H&K Heckler & Koch
$19.95New HK German MP5 40/10 -4 roller Hard to find and needed for headspace adjustments if needed. Great spare to have on hand and no longer in production. Each roller is priced per piece.HKP-00337$19.95 -
H&K MP5 A3 Rear Stock Fork Section With Buttpad
H&K Heckler & Koch
$429.95H&K MP5 A3 Rear Stock Fork Section With Buttpad A common repair item as the buttpad can crack or break off with time or hard use. A hard-to-find item, available here at HK Parts. For use with new style A3 German stocks, NOT the older style stocks...HKP-01044$429.95 -
Out Of Stock
H&K MP5 Stock Locking Lever With Spring
H&K Heckler & Koch
$0.00HK MP5, A3, HK91, & G3 Retractable Stock Locking Lever With Locking Spring Compatible With: MP5 (NOT compatible with MP5 .22 LR)HKP-02560$0.00 -
Out Of Stock
H&K MP5K/SP89 9mm SEF Contoured Trigger Group - Clipped & Pinned
H&K Heckler & Koch
$0.00New HK German SP89, MP5K Semi Auto - Clipped & Pinned SEF Trigger Group Each unit includes the professionally converted SEF clipped and pinned housing and semi-auto-only trigger pack. All trigger groups include a new 3rd-generation 9mm ejector lever...HKP-01691$0.00 -
Out Of Stock
H&K Shifter Rod - Burst Trigger Packs
H&K Heckler & Koch
$59.95German HK Trigger Pack Shifter Rod For Burst Trigger PacksHKP-02054$59.95 -
H&K UMP (.40 S&W) 30 Round Magazine Housing
H&K Heckler & Koch
$69.95New HK UMP .40 30 Round Magazine Housing New HK German UMP .40 30 round factory magazine body. A great spare part in the event that your mag body is damaged or cracked.HKP-16369$69.95 -
H&K VP9/VP9SK, HK VP40 Axle For Drop Safety
H&K Heckler & Koch
$34.95H&K VP9/VP9SK, HK VP40 Axle For Drop SafetyHKP-16837$34.95 -
H&K VP9SK, VP40SK Back Strap - Large - OD Green
H&K Heckler & Koch
$9.95H&K VP9SK, VP40SK Back Strap - Large - OD Green New HK German manufacture. Compatible With: HK VP9SK HK VP40SKHKP-18970$9.95 -
Hi-Viz HK USP Fiber Optic Rear Sight - Red
Hi-Viz
$49.95Hi-Viz HK USP Fiber Optic Rear Sight - Red Fiber optic sights are becoming more and more popular as they never dim or become aged. Priced right and a great option for those that needs more from their sights. Compatible With: USP Compact 45, 40, 9mm USP...HKP-16941$49.95 -
Sale
HK 23E Print
XrayGuns
Now: $29.95Was: $59.9510" X 20" High Resolution Black And White X-Ray Print Of The HK 23E. These prints were developed by a radiologist who's passion for Heckler and Koch firearms inspired him to utilize his $750,000 CAT scanning machine to X-Ray his favorite firearms. ...HKP-16956Now: $29.95Was: $59.95 -
Out Of Stock
HK 416/MP5 Sling Swivel
HKP HK Parts
$34.95HK 416/MP5 Sling Swivel Sling swivel for the Walther 416 and MP5 .22 rifles. This will attach to the quad rail on the 416 to give you an attachment point for a 2 point sling. May also be used with the an MP5 that has a tri rail set up.HKP-16318$34.95 -
HK German SEF SEMI .308 Clipped & Pinned Trigger Group
H&K Heckler & Koch
$549.95HK German SEF SEMI .308 Clipped & Pinned Trigger Group The new HK German-made semi-auto trigger group comes in .308 caliber already clipped & pinned. Compatible With: HK 91 HK G3 C308 PTR-91 HK .308 rifles. SEF Navy Style Trigger Group...HKP-00210$549.95 -
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 -
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 HK45C Railok™ Threaded Barrel Compensator
HKP HK Parts
$189.95HK Parts Railok™ Mounting System Threaded Barrel Compensator: H&K HK45C The HK Parts Railok™ mounting system compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle...HKP-21264$189.95 -
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