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 Trigger Pack Sear/Catch - Surplus
H&K Heckler & Koch
$12.95Sear/Catch Complete For HK 90 Series Trigger Packs - German HK - Used German HK Sear/Catch complete with installed detent, spring and roll pin. Used surplus in VG-EXC shape and in perfect working order and complete. This item is an absolute bargain at...HKP-18304$12.95 -
HK German Factory P7 Series Recoil Spring
H&K Heckler & Koch
$19.95Factory German HK P7 Recoil Spring This is a hard-to-find replacement part for the P7 series. This is a new HK German replacement or spare recoil spring. Compatible With: HK P7 PSP HK P7 M8 HK P7 M10 HK P7 M13HKP-01077$19.95 -
HKP HK MP5 & HK MP5K Dual 9mm Magazine Clamp Bundle - KCI
HKP HK Parts, KCI
$119.95Dual Magazine Clamp Bundle - 9mm - KCI MP5 The MP5, MP5K magazine grip or dual magazine clamp. Fits all 9mm MP5 or MP5K curved magazines. Holds two magazines together for ease of use and easy access to 2 magazines. Half the weight of the factory...HKP-20479$119.95 -
RCM HK MP5 Complete HK Style 9mm Bolt Group
RCM
$409.95Complete Bolt Group - RCM - HK Style MP5 9mm Ideal to replace out of spec, worn or broken bolt groups or for that custom build. This is the finest US BCG available. Each bolt group comes complete, assembled ready to go. Includes: Bolt head complete 100...HKP-19317$409.95 -
B&T MP5 & HK94 UMP Style Folding Stock
B&T Brugger & Thomet
$279.95B&T MP5 & HK94 UMP Style Folding Stock New Swiss/German HK Made B&T Folding Stock for the MP5/ SP5 full size. These are hard to find and the real deal. 100% Swiss & German HK made. This is a military-grade stock. B&T Switzerland has...HKP-16928$279.95 -
H&K HK P30/USPC/45C/P2000 Firing Pin Spring
H&K Heckler & Koch
$8.95HK P30/USPC/45C/P2000 Firing Pin Spring A must have spare replacement part to keep on hand and to swap out during pistol servicing. Compatible With: HK USP Compact 9mm HK USP Compact 40 & .357 HK USP Compact 45 HK P2000 Series HK P2000SK Series HK...HKP-01502$8.95 -
Out Of Stock
HKP 30 Round HK UMP 10mm Magazine - Black
HKP HK Parts
$139.95UMP, SMG - 30 Round Magazine - USA - 10mm Each 30 round magazine will fit the HK UMP 10mm caliber carbines, SMG's as well as the USC-UMP .40 to 10mm caliber conversions. Each magazine features, steel feed lips, enhanced polymer construction and all...HKP-19474$139.95 -
H&K 40 Round HK 93/33/53 5.56x45mm/.223/300 Magazine - Black
H&K Heckler & Koch
$119.95HK93, HK33, HK53 - 40 Round Magazine - Genuine German HK - Professionally Refinished HK Factory German 40 round surplus magazine that has been professionally disassembled, inspected, bead blasted, cerakoted and cured to look as close to new as possible...HKP-19797$119.95 -
On Sale
HKP HK VP9 Gen 2 V1 Threaded Barrel Rail Mount Compensator - Black
HKP HK Parts
Now: $99.95Was: $169.95HKP HK VP9 Gen 2 V1 Threaded Barrel Rail Mount Compensator - Black Made specifically for the VP9 Tactical or VP9 with Threaded barrel - Version 1 - Gen 2 This HK Parts VP9 Threaded Barrel Rail Mount Compensator is the perfect accessory for your...HKP-19115Now: $99.95Was: $169.95 -
H&K Vertical Foregrip - RAL 8K
H&K Heckler & Koch
$64.95H&K Vertical Foregrip - RAL 8K Each Vertical Grip features the factory HK markings & HK's unique locking system. Rotating the knob at the base of the grip to engage/disengage the Picatinny locking piece allows the user to install/remove the...HKP-17689$64.95 -
MKE HK G3 Retractable Buttstock
MKE
$359.99MKE HK G3 Retractable Buttstock The Century Arms MKE Retractable G3 Buttstock is an easy-to-install replacement stock system for HK G3-style firearms. The simple lock/release system is easy to operate, allowing shooters to adjust the stock length...HKP-21182$359.99 -
HKP HK VP9/VP9L Optics Plate #7 Holosun 509T Optic Mount
HKP HK Parts
$49.95HK VP9, VP9L Optics Ready #7 - Holosun 509T - Optic Mount - Steel The finest all steel mounting solution for your HK VP9, VP9L OR model.New solid billet machined steel optics plate. Each plate is CNC machined from a solid billet of ordnance grade steel,...HKP-19972$49.95 -
SB Tactical HK MP5 .22LR Folding Brace w/Billet Adapter
HK Parts / SB Tactical
$224.95SB Tactical Side Folding Brace with Billet Adapter for the HK MP5 .22 model: This is not your standard SB Tactical side folding brace. We pair the standard SBT brace with our own billet aluminum brace adapter to give you a more robust option over...HKP-19951$224.95 -
Out Of Stock
B&T HK MP5, SP5 Telescopic Brace
B&T Brugger & Thomet
$650.00B&T HK MP5, SP5 Telescopic Brace B&T's telescopic retractable 5-position brace assembly for Heckler & Koch models, MP5, SP5 and HK94 and clones. Installs using existing push pins, no modification required for installation...HKP-19504$650.00 -
HKP Leather MP5 Key Chain - Black/Silver
HKP HK Parts
$9.00HKP Leather MP5 Key Chain - Black/Silver Leather MP5 keychain with HK sling style clip.HKP-21452$9.00 -
H&K MP5 A3 Retractable Stock Buffer
H&K Heckler & Koch
$27.95H&K MP5 A3 Retractable Stock Buffer These common wear items need to be replaced when they become yellow, brittle, and worn. Inspect your buffer for the following: discoloration, the buffer becomes hard and brittle, tears, cracks, or breakages of any...HKP-00074$27.95 -
H&K MP5K/SP89/SP5K 9mm Recoil Spring
H&K Heckler & Koch
$11.95HK German MP5K, SP89 Recoil Rod Assembly Spring This is a great replacement and spare part.HKP-01159$11.95 -
Out Of Stock
MFI GSG-5/GSG-522/GSG-5PK Scope Mount
MFI
$109.95MFI HK Low Profile Scope Mount The MFI low profile scope mount was designed exclusively for the GSG-5, Umarex, and HK MP5 .22 models. The MFI mount takes less than 3 minutes to mount on your rifles or pistols. Compatible With: GSG-5,...HKP-01545$109.95 -
H&K (5.56/.223) & (7.62x51/.308) Hammer Spring- Extra Power
H&K Heckler & Koch
$14.95H&K (5.56/.223) & (7.62x51/.308) Hammer Spring- Extra Power New HK German extra power hammer spring for all .308/.223 Semi & Full Auto Trigger Packs. This is a must have spare replacement part for your HK firearm parts bin. The heavy hammer...HKP-16447$14.95 -
HK Piston 3-Ring Replacement Set
H&K Heckler & Koch
$19.95HKP Gas Piston Ring Replacement Combo Set- 3 Rings The gas rings are prone to periodic breakage and wear and tear and require them to be replaced periodically. These are some of the most common breakage parts we see that need to be replaced on these...HKP-00048$19.95 -
H&K HK USP/USPC, P2000, HK45, P30 Sight Tool
H&K Heckler & Koch
$199.95HK Sight Removal & Installation Sight Tool For - HK USP, USP Compact & P2000 Models A rare offering and no longer available. This is a special offering while supplies last. Brand new in the box HK sight tool. The HK Sight tool is a compact...HKP-19644$199.95 -
B&T HK MP5 .22 LR Folding Stock
B&T Brugger & Thomet
$249.95B&T Folding Stock for MP5 .22 LR Swiss made B&T folding stock for the MP5 22 LR. This is a military grade stock section as supplied by B&T to HK Germany. B&T Switzerland has supplied these to law enforcement and military units around the...HKP-20166$249.95 -
H&K G3/91 (7.62x51/.308) SEF Navy Style Trigger Housing - Clipped & Pinned - USED EXELLENT
H&K Heckler & Koch
$99.95H&K G3/91 (7.62x51/.308) SEF Navy Style Trigger Housing - Clipped & Pinned - USED EXELLENT German-made Heckler & Koch grip housing comes in black polymer clipped & pinned, ready to drop on your HK 91, HKG3, PTR-91, or other HK .308 type...HKP-01824$99.95 -
Evolution Gun Works HK USP Full Size Trijicon RMR-SRO, Holosun 407C-507C Mount
Evolution Gun Works
$49.95Evolution Gun Works HK USP Full Size Trijicon RMR-SRO, Holosun 407C-507C Mount Includes: Mounting hardware Features: Material: 7075 aluminum Coating: matte black hardcoat Overall length: 1.780" Overall width: 1.1" Mounting hardware: (2) 6-32...HKP-20042$49.95 -
H&K HK VP9/45/P Series Extractor Spring
H&K Heckler & Koch
$8.95HK VP9/45/P Series Extractor Spring A must-have repair and replacement part and a recommended part to change out when doing routine maintenance on your HK pistol. Compatible With: HK45 HK45C HK P30/P30L HK P30SK HK P2000 HK P2000SK HK VP9 HK VP9SKHKP-01501$8.95 -
H&K 10 Round HK P2000SK 9mm Magazine - Black
H&K Heckler & Koch
$54.95HK P2000 SK 9mm - 10 Round Magazine With Finger Rest Fits the HK P2000SK sub-compact (SK) model only—new Factory German HK manufacture.HKP-00308$54.95 -
HKP Roller +7 - New - 8.07mm
HKP HK Parts
$8.99Roller +7 - New - 8.07mm HK Parts Standard (8.07 mm) locking roller, The proper roller size is essential for proper bolt gap. US Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to...HKP-19442$8.99 -
HKP 9mm Thread Protector - Threaded 13.5x1 LH
HKP HK Parts
$19.95HKP 9mm Thread Protector - Threaded 13.5x1 LH This standard thread protector is perfect as a replacement or backup. It fits 9mm barrels with 13.5x1 LH threading. Specifications: Threaded 13.5x1 LH Compatible With: HK...HKP-20745$19.95 -
HKP HK Mark 23, SOCOM Bench Mat
HKP HK Parts
$13.95HKP HK Mark 23, SOCOM Bench Mat This isn't your ordinary gun cleaning mat! Show your pride for your HK Mark 23 firearm while using our high quality neoprene rubber backed and cloth topped gun cleaning mat to protect your gun bench, desk, kitchen table,...HKP-17278$13.95 -
On Sale
AC-Unity 30-Round Glock 17, 19 9mm Window Magazine - Black
AC-Unity Magazines and Parts
Now: $13.95Was: $19.95AC-Unity 30-Round Glock 17, 19 9mm Window Magazine - Black The AC-Unity 30 round 9mm window magazine for Glock models 17, 18, 19, 19X, 26, 34, 45. Will work in anything designed to accept a Glock 17 9mm double-stack magazine. Originally...HKP-20157Now: $13.95Was: $19.95 -
On Sale
HKP Glock 17 - +6 Round 9mm Magazine Extension Kit
HKP HK Parts
Now: $22.95Was: $34.95HKP Glock 17 - +6 Round 9mm Magazine Extension Kit Designed to fit all of the Glock 17 models from Gen 1 through and up to the current Gen 5 models. Each unit is fully machined from a solid billet of aircraft-grade aluminum that is fully hard coat...HKP-18348-MNow: $22.95Was: $34.95 -
H&K MR556/MR762/416/417 Firing Pin Spring
H&K Heckler & Koch
$14.95H&K MR556/MR762/416/417 Firing Pin Spring This part is great to have on hand as this item is a high wear and replacement part and one of the most common breakage parts on the HK 416/MR556 rifles. Compatible With: HK MR556 HK 416 HK MR762 HK 417 HK...HKP-00928$14.95 -
HK Contract 3 Point Sling - Black
H&K Heckler & Koch
$52.95HK Contract 3 Point Sling - Black German military surplus 3 point HK sling in like new condition. These slings are completely operational and a great value for the money. This is the best valued HK 3 point sling available on the market.HKP-19186$52.95 -
HKP HK 91/G3 (7.62x51/.308) Handguard - M-LOK
HKP HK Parts
$159.95 - $169.95HK G3, HK91 & PTR Low Profile M-LOK Forearm The M-LOK tactical hand guard easily installs on your firearm with minimal effort and locks up solid. No fitting required. Designed from the ground up by roller lock & HK enthusiasts with your shooting...HKP-17265-M$159.95 - $169.95 -
HKP HK Piston Ring Replacement Set - 3 Ring Combo
HKP HK Parts
$8.95HK MR556, HK416 & G36, SL8 Gas Piston Ring Replacement Combo Set - 3 Rings This is a high wear common repair & replacement item. The gas rings are prone to periodic breakage & wear, tear and require them to be replaced periodically...HKP-17933$8.95 -
H&K 10 Round HK VP40/P30 .40 S&W Magazine - Black
H&K Heckler & Koch
$54.95HK VP40, P30, P30S & P30L .40 - 10 Round magazine New HK German manufacture. It is a CA, NY, compliant magazine because it holds 10 rounds. Hard to find in this configuration.HKP-01739$54.95 -
GSG 22 Round GSG-5/GSG-16 .22LR Magazine - Black
GSG German Sports Guns
$29.95GSG 22 Round GSG-5/GSG-16 .22LR Magazine - Black The GSG magazine is a standard factory replacement magazine. The magazine is made from high-quality polymer and features a matte finish. Compatible...HKP-00794$29.95 -
H&K 91/G3 (7.62x51/.308) Firing Pin
H&K Heckler & Koch
$19.95HK G3, HK91, PTR 762/.308 Firing Pin HK German, new factory part made from steel. Great for spares as this is a common wear item. Compatible With: HK G3 HK91 HK PTR CETME & C308HKP-00497$19.95 -
H&K HK 416/MR556/MR762 Trigger Guard Pin
H&K Heckler & Koch
$3.95HK MR556 & HK 416 Trigger Guard Retaining Pin Compatible With: HK 416 HK MR556HKP-02678$3.95 -
H&K GSG-5 Rear Sight
H&K Heckler & Koch
$18.95H&K GSG-5 Rear Sight This item will fit all GSG-5 models, including the PK and P models. This item is an all-steel HK-made part designed for combat and the toughest of environments. Each HK factory sight comes as shown and is...HKP-02401$18.95