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 UMP, HK USC Lower Axle
H&K Heckler & Koch
$9.95HK UMP & USC Lower Axle Pin - US 3 lower axle pins are used for each trigger group or lower all the same size with the exception of the mag release axle on the USC.HKP-19383$9.95 -
H&K HK USP/45/45C Trigger Bar Detent Spring
H&K Heckler & Koch
$9.95H&K HK USP/45/45C Trigger Bar Detent Spring This is a common replacement part as it can become worn or lost. Compatible With The Newer Style HK45 & HK45C Models: HK45, HK45 Tactical HK45C, HK45C Tactical Compatible With The HK USP...HKP-01254$9.95 -
H&K HK VP9, HK VP40 Back Strap - Small - Black
H&K Heckler & Koch
$29.95H&K HK VP9, HK VP40 Back Strap - Small - Black New HK German manufacture. Compatible With: HK VP9 HK VP40HKP-16814$29.95 -
H&K HK VP9, HK VP40 Grip Panel Left Side - Medium - Black
H&K Heckler & Koch
$9.95H&K HK VP9, HK VP40 Grip Panel Left Side - Medium - Black New HK German manufactured. Left side medium size perfect for spare or for custom stippling projects. Drop-in part for your HK VP pistol. Compatible With: HK VP9 HK VP40HKP-16806$9.95 -
H&K MP5 A3 Stock - Surplus - Good Condition
H&K Heckler & Koch
$578.95Military German manufactured A3 Retractable Stock - Used Each Used German HK stock will vary from Fair-Good Shape (early 80's manufacture) A one time offering of some well used German military stocks that need some TLC and a refinish to get them looking...HKP-16659$578.95 -
H&K MP5, 93/53/33, G3 (9mm & 7.62/.308 & 5.52/.223) SEF Navy Style Polymer Housing - Clipped & Pinned
H&K Heckler & Koch
$179.95H&K MP5, 93/53/33, G3 (9mm & 7.62/.308 & 5.52/.223) SEF Navy Style Polymer Housing - Clipped & Pinned This navy style housing fits all shelved receivers. Specifications: Made In Germany Clipped & Pinned Navy Style Housing SEF...HKP-00164$179.95 -
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 -
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 -
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 HK45 .45 ACP Knurled Micro Comp - Threaded .578x28 RH
HKP HK Parts
$29.95HKP HK45 .45 ACP Knurled Micro Comp - Threaded .578x28 RH This new .45 ACP Tactical Slotted Micro Comp fits all HK-spec .45 ACP full-size and compact barrels threaded .578x28 RH. Designed to be lightweight and fully functional as both a compensator and...HKP-21175$29.95 -
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 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 -
HKP/H&K Mark 23 .45 ACP Knurled Micro Comp - Threaded 16x1 RH
HKP HK Parts
$29.95HKP/H&K Mark 23 .45 ACP Knurled Micro Comp - Threaded 16x1 RH The HK Parts Micro Comp & Thread Protector is a lightweight, fully functional accessory that serves as both a compensator and thread protector. Easily attaching to any factory spec...HKP-21328$29.95 -
Sale
HKP/H&K UMP/USC (.40 S&W/.45 ACP/9mm) Enhanced Top Receiver Rail - BLEMISHED
HKP HK Parts
Now: $29.95Was: $49.95HKP/H&K UMP/USC (.40 S&W/.45 ACP/9mm) Enhanced Top Receiver Rail - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The extended length allows...HKP-14541-BNow: $29.95Was: $49.95 -
Meprolight HK USP Tru-Dot Night Sights - Orange, Green
Meprolight
$99.99Meprolight HK USP Tru-Dot Night Sights - Orange, Green Features: Unequaled Light Performance Brightest Night Sights Available Today Used by Military & Law Enforcement All Tru-Dot sights are covered by a 12-year usable illumination warranty to the...HKP-01907$99.99 -
SB Tactical - B&T - HK MP5K Swiss Folding Brace - Skeletonized
SB Tactical, B&T Brugger & Thomet
$239.95SB Tactical - B&T - HK MP5K Swiss Folding Brace - Skeletonized Factory Swiss B&T MP5K, SP5K folding pistol brace with the SB tactical/ B&T components assembled. A rare offering using the B&T Swiss manufactured folding polymer end cap with...HKP-21054$239.95 -
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
TPM H&K 416 & MP5 .22 Muzzle Brake – Threaded 1/2x28
Tactical Precision MFG
Now: $54.95Was: $72.99TPM H&K 416 & MP5 .22 Muzzle Brake – Threaded 1/2x28 The TPM Muzzle Brake is a high-performance, radially ported accessory designed for lightweight mountain rifles like the Ruger American. Crafted from titanium, this muzzle brake combines...HKP-20908Now: $54.95Was: $72.99 -
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 -
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 -
H&K 93/53/33 (5.56/.223) Backplate - Parkerized
H&K Heckler & Koch
$64.95Steel Back Plate For HK93, 33, 53 & MP5, 94- Parkerized Finish HK German backplate with the recoil assembly cup guide installed. Each unit comes complete & freshly parkerized. Derived from a German HK91 backplate and using factory tooling,...HKP-16252$64.95 -
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 45/45C/USP/USPC/P2000 Slide Release Spring
H&K Heckler & Koch
$9.95HK Slide Release Spring This is a high-wear item, as it cannot be reused once damaged or removed. It must be replaced with a new spring. Compatible With: HK USP 9mm, .40 & .45 HK USP Compact 9mm, .40 & .45 HK USP Tactical, Elite & Expert...HKP-01260$9.95 -
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 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 -
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 -
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 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 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 -
HKP HK MR556/416 Standard Length 9" Quad Rail Black
HKP HK Parts
$228.95HK 416, MR556 Quad Rail- Standard LengthHK416 & MR556 quad rail complete that includes HK 416/MR556 Handguard Screw. This handguard can also be installed on the CR556 models as well. Made 100% in the USA. HK 416 HK MR556 HK CR556Weight: 12.3 ozHKP-17963$228.95 -
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 -
Sale
Magpul Rail Cover Dark Earth
Magpul
Now: $5.00Was: $8.95Magpul Rail Cover Dark Earth Protect your investment with these attractive low-profile "Ladder" rail protectors. Features: Ladder Panels offers low-profile 1913 Picatinny rail coverage Easy clip-on/off installation Provides a very low-profile...HKP-13568Now: $5.00Was: $8.95 -
RCM HK P2000 9mm Tactical Barrel - Threaded 1/2x28 RH
RCM
$249.95RCM HK P2000 9mm Tactical Barrel - Threaded 1/2x28 RH Each P2000 tactical barrel is crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. It is the finest threaded replacement barrel for the HK P2000 9mm...HKP-16700$249.95 -
Out Of Stock
RCM HK P30SK & HK P2000SK 9mm Tactical Barrel - Threaded 1/2x28 RH
RCM
$249.95RCM HK P30SK & HK P2000SK 9mm Tactical Barrel - Threaded 1/2x28 RH Each HK P2000SK and P30SK tactical barrel is meticulously crafted from ordnance grade steel, heat treated, and finished with a durable nitride coating. This is the finest...HKP-19306$249.95