Parts Kits
Explore our extensive selection of HK Parts Kits tailored for various HK models like the MP5, G3, UMP, and more at HKParts. These kits offer everything you need for upgrades, repairs, or full builds, ensuring top quality and reliability. Perfect for both enthusiasts and professionals looking to maintain or enhance their HK firearms.
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H&K G3 Parts Kit - PTR Barrel & Flat
H&K Heckler & Koch
$799.95HK German G3 .308/7.62 X 51mm Surplus Parts Kit, PTR Barrel, Flat Finally, after more than 4 years of searching the globe we have HK German Surplus G3 parts kits available to offer. Each parts kit comes complete with all parts from a functional HK G3...HKP-16579$799.95 -
HKP UMP Parts Kit - .45 ACP
HKP HK Parts
$999.95HKP UMP Parts Kit - .45 ACP HK Parts brings a complete UMP Parts kit that includes everything you require to complete any stripped receivers like the new DEFGUNZ DEF9 "UMP style" receiver. Our new parts kits will have the highest quality parts for...HKP-21433$999.95 -
FMP - G3 Parts Kit - With Mags
HKP HK Parts
$290.00FMP - G3 Parts Kit - With Mags The G3 has been an iconic battle rifle utilized all over the world and revered as one of the best that H&K has offered. You now have the opportunity to build one of these iconic battle rifles. Licensed by H&K and...HKP-20865$290.00 -
Out Of Stock
H&K HK21 FMP Parts Kit, 7.62x51
H&K Heckler & Koch
$0.00H&K HK21 FMP Parts Kit, 7.62x51 Seize your opportunity to secure a piece of history! These HK21 parts kits were manfactured by the Portuguese government under license from HK using HK's tooling, dies, and prints. Each HK21 kit has been...HKP-21393$0.00 -
Taiwanese T65 Retro Parts Kit
$1,199.95Taiwan - T65 Gas Piston Rifle Parts Kit Limited one time offering first time ever offered here in the USA. This is an extremely rare offering and only a very limited number of kits are available. Each kit was used in Central & South America during...HKP-19676$1,199.95 -
Sale
FN-FNS .40 S&W Pistol Parts Kit
FN
Now: $287.95Was: $399.95FN FNS -40 Cal Pistol Parts Kit Kits comes complete less the lower receiver. Each kit was handpicked and comes in in the factory hard case as pictured. Includes: Complete slide assembly with firing pin and extractor assemblies Recoil rod...HKP-19741Now: $287.95Was: $399.95 -
HKP MP5-SD 9mm Pistol Build Kit With Flat, Top Rail & Weldment Set
HKP HK Parts
$2,499.95HKP MP5-SD 9mm Pistol Build Kit With Flat, Top Rail & Weldment Set MP5 SD 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be legal as a pistol (N/A)...HKP-18052$2,499.95 -
H&K G3 (7.62x51/.308) Parts Kit
H&K Heckler & Koch
$497.95HK German G3 .308/7.62 X 51mm Surplus Parts Kit Each parts kit comes with all parts from a functional HK G3 full auto rifle that was demilled into a parts kit except for the barrel and receiver. Each part of the parts kit will vary from fair to excellent...HKP-00827$497.95 -
FMP HK G3 (7.62x51/.308) Parts Kit (HK Contract)
FMP
$397.95HK Contract Portuguese FMP G3 .308/7.62 X 51mm Surplus Parts Kit Finally, after more than 4 years of searching the globe, we have HK FMP Surplus G3 parts kits available to offer. Each parts kit comes complete with all parts from a functional HK G3 full...HKP-17694$397.95 -
H&K HK G3/HK 91/PTR Parts Kit - PTR Barrel, Flat - Hand Picked
H&K Heckler & Koch
$1,199.95G3, 91 Hand Picked Parts Kit - Barrel, Flat Features: Handpicked stock set Handpicked housing, grip Handpicked magazine Handpicked end date coded bolt group New cocking tube included Full-auto bolt group Please note: Each part in the G3 parts kit will...HKP-20071$1,199.95 -
EBO HK G3 (7.62x51/.308) Parts Kit - Tungsten Filled Carrier - (Greek HK Contract)
EBO
$499.95HK Contract Greek EBO G3 .308/7.62 X 51mm Surplus Parts Kit Rare and HK Greek EBO Surplus G3 parts kits with the Tungsten filled bolt carriers. Each de-milled parts kit comes with all parts from a functional HK G3 full auto rifle except the barrel and...HKP-17695$499.95 -
HKP MP5K 9mm Complete Pistol Build Kit
HKP HK Parts
$2,099.95MP5K, MP5K-N Style Pistol Build Kit Complete The finest USA and German-made parts for a complete parts kit for an MP5K, MP5K-N pistol build. Each Kit Includes The Following HK Parts: Barrel - 5.5" button rifled, 3-lugged & threaded 1/2 X 28...HKP-02604$2,099.95 -
H&K G3 Parts Kit - PTR Barrel
H&K Heckler & Koch
$699.95HK German G3 .308/7.62 X 51mm Surplus Parts Kit Finally, after more than 4 years of searching the globe, we have HK German Surplus G3 parts kits available to offer. Each parts kit comes complete with all parts from a functional HK G3 full auto rifle that...HKP-16577$699.95 -
HKP MP5 9mm Pistol Build Kit With Flat, Top Rail & Weldment Set
HKP HK Parts
$2,099.95MP5 9mm Pistol Build Kit Complete German & USA Made Parts MP5 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be legal as a pistol (N/A) rifle, or SBR...HKP-18039$2,099.95 -
H&K HK MP7 A2 Parts Kit - New
H&K Heckler & Koch
$20,595.00HK Mp7 A2 Parts Kit - German HK For the first time ever - brand new, in the box, updated HK German MP7 A2 parts kit. Now available as a limited one-time offering here at HKP. This MP7 kit is factory original, unfired, and demilled. Very rare and...HKP-20050$20,595.00 -
H&K G36K Parts Kit w/ Rear Hinge Section
H&K Heckler & Koch
$3,995.00G36K Parts Kit Complete With Stock Hinge Section Finally a factory German HK G36K parts kit with the most desirable of parts and the ultra desirable stock hinge section for the proper T Bostic SL8 conversion. Tom Bostic is now offering conversions on...HKP-00269$3,995.00 -
H&K, B&T HK MP5 Swiss & German Parts Kit With B&T Folding Pistol Brace
$2,399.95HK German MP5 made with Swiss Marked & Proofed HK MP5 Parts Kit Includes: German demilled HK front sight tower assembly and sling loop German HK cocking tube assembly complete German HK trunnion with magwell section attached to the demilled...HKP-19477$2,399.95 -
H&K HK33 Pistol Parts Kit w/ Flat & Weldment Set
H&K Heckler & Koch
$2,199.00HK 33 pistol Build Kit Complete German & US Parts- Limited Supply! Heckler & Koch German-manufactured parts kit issued to the Malaysian Army. Demilled and prepared per BATF specifications. These are the last parts kits available we are told there...HKP-19731$2,199.00 -
H&K MP5 9mm Parts Kit 100% German - A2 Stock & SEF Lower
H&K Heckler & Koch
$2,599.95HK German MP5 9mm Used Parts Kit Complete (Minus Receiver) All MP5 Kits Include: HK 3-Lug MP5 Barrel - cold hammer forged Cocking Tube Front Sight Tower Wide Forearm - Black Bolt Group - MP5 Full Auto 2 small and 1 large Push Pin 30-Round Curved...HKP-00771$2,599.95 -
HKP MP5 9mm Pistol Build Kit With Flat, Top Rail & Weldment Set - SEF Binary Trigger
$2,449.95MP5 9mm Pistol Build Kit Complete German & USA Made Parts- SEF Binary Trigger Group MP5 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be legal as a...HKP-20523$2,449.95 -
H&K MP5 9mm Parts Kit 100% German - A2 Stock & FBI Lower
H&K Heckler & Koch
$2,299.95HK German MP5 9mm Used Parts Kit Complete MP5 Parts Kit - 9mm (Minus Receiver) All MP5 Kits: 100% German Parts HK 3-Lug MP5 Barrel - cold hammer forged Cocking Tube Front Sight Tower Wide Forearm - Black Bolt Group - MP5 Full Auto Two small and one...HKP-01911$2,299.95 -
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 9mm Reverse Stretch Pistol Build Kit - Complete
HKP HK Parts
$1,874.95MP5 Reverse Stretch 9mm Pistol Build Kit Complete - German & USA Made Parts MP5-RS 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be legal as a pistol,...HKP-17121$1,874.95 -
Out Of Stock
GSG9 HK G36C Rifle Kit
GSG9
$1,849.95GSG9 HK G36C Rifle Kit Complete GSG9 Rifle Kit for G36C Semi-Auto. Includes folding stock and all parts needed for a complete build (minus the receiver and magazine catch)! USA Made receivers can be found at www.tommybuilttactical.com Features: Included...HKP-18649$1,849.95 -
GSG9 HK G36K Complete Parts Kit
GSG9
$1,999.95GSG9 HK G36K Complete Parts Kit Complete G36K Semi-Auto Parts Kit. Includes all parts needed for a complete build minus the receiver and magazine catch.*USA Made receivers can be found at www.tommybuilttactical.com* 922R Compliant Parts: Barrel Bolt...HKP-18648$1,999.95 -
H&K MP5 9mm Parts Kit 100% German - A3 Stock & SEF Lower
H&K Heckler & Koch
$3,499.95MP5 Parts Kit - 9mm HK German MP5 9mm Used Parts Kit Complete (Minus Receiver). All MP5 Kits Include: HK 3-Lug MP5 Barrel - cold hammer forged Cocking Tube Front Sight Tower Wide Forearm - Black Bolt Group - MP5 Full Auto 2 small and 1 large Push...HKP-00770$3,499.95 -
H&K MP5 9mm Pistol Build Kit With Flat & Weldment Set
H&K Heckler & Koch
$2,299.95H&K MP5 9mm Pistol Build Kit With Flat & Weldment Set Each MP5 9mm parts kit started life as an iconic German manufactured MP5 that was issued to the border guard and military police for service. During that service, they were carried a ton but...HKP-16606$2,299.95 -
H&K MP5-N Parts Kit 100% German - A3 Stock & Navy 3 Position Lower - RARE
H&K Heckler & Koch
$4,499.00H&K MP5-N Parts Kit 100% German - A3 Stock & Navy 3 Position Lower - RARE All German HK MP5 Navy parts kit with 3 lug and threaded barrel, Action 3 bolt group, A3 retractable stock, 3 position navy lower, one 30 round curved...HKP-15172$4,499.00 -
H&K UMP (.45 ACP) Parts Kit - Extended Demilled Rear Receiver Section - Used
H&K Heckler & Koch
$4,499.95HK German UMP .45 Parts Kit- Used PD Trade-In UMP .45 German parts kit complete with all the factory HK parts minus the receiver. PD trade-ins are in good shape. Each UMP .45 Parts Kit Includes: UMP .45 barrel UMP front sight assembly UMP cocking hand...HKP-00589$4,499.95 -
HKP HK MP5K Binary Pistol Build Complete Limited Edition Kit
HKP HK Parts
$3,799.95Limited Edition Parts Kit - MP5K With Binary Trigger Group Our limited edition parts kit will include the highly desirable Binary 3 position Navy trigger group with a universal style housing that will accommodate for a SP5K style semi auto shelf and a...HKP-20025$3,799.95 -
GSG9 HK G36C Complete Pistol Parts Kit
GSG9
$1,999.95HK G36C Pistol Parts Kit Complete - US Made Complete G36C Semi-Auto Parts Kit. Includes all parts needed for a complete build minus the receiver and magazine catch. *USA Made receivers can be found at www.tommybuilttactical.com* 922R Compliant...HKP-18647$1,999.95 -
H&K MP5-A2 .40 S&W German Parts Kit
HKP HK Parts
$3,899.95HK MP5 40 S&W A German Parts Kit - Used Includes: Barrel - 3 lugs, threaded, and cold hammer-forged Trigger Group - Ambidextrous Navy 0,1, F Trigger Group A2 Fixed Stock Bolt Group Mp5 40 F/A Forearm - Standard wide black polymer Rear Sight...HKP-00891$3,899.95 -
Out Of Stock
H&K MP5-A3 40/10 Parts Kit - PD Trade In
H&K Heckler & Koch
$0.00HK MP5 40 S&W A3 German Parts Kit - UsedGenuine German HK MP5 40 parts kit Barrel - 3 lugs & threaded, cold hammer forged Trigger Group - Ambidextrous FBI (0,1) pictogram A3 Retractable Stock - correct 40 cal stock Bolt Group - .40 S&W...HKP-00897$0.00 -
HK 417 German Parts Kit w/ 12" Barrel
H&K Heckler & Koch
$26,000.00HK German 417 Assaulter 12" Parts Kit - Unfired The ultimate HK unicorn. Have you ever seen one let along seen a brand new German UNFIRED HK417 Assaulter parts kit with EVERY single part with the exception of the actual stripped lower? This is the...HKP-18433$26,000.00 -
HKP MP5SD 9mm Pistol Build Kit With Flat, Top Rail & Weldment Set - SEF Binary Trigger
$2,849.95HKP MP5SD 9mm Pistol Build Kit With Flat, Top Rail & Weldment Set - SEF Binary Trigger MP5 SD 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be legal...HKP-20524$2,849.95 -
MP5F Parts Kit 3 Pos Navy Pistol or A2 Kit
H&K Heckler & Koch
$3,299.95MP5F Parts Kit 3 Pos Navy Pistol or A2 Kit HK German MP5F 9mm used parts kit complete. All MP5F Kits: 100% German parts HK 3-Lug MP5 Barrel - cold hammer forged Cocking tube Front sight tower Wide forearm - black Bolt group - MP5F full auto with all...HKP-01538$3,299.95 -
Sale
FMK-3 - Submachine Gun - Spare Parts Kit
Now: $159.95Was: $299.95FMK-3 - Submachine Gun - Spare Parts Kit Comes with everything in the picture. Used, fair/good condition. Parts kit are from factory De-Milled parts kits. Kit does NOT include a Magazine-Barrel *All NFA Rules Apply*HKP-18479Now: $159.95Was: $299.95 -
Out Of Stock
GSG9 HK G36E Build Kit
GSG9
$2,499.95Rifle Kit GSG9 - HK G36E Complete G36E Semi-Auto Parts Kit. Includes all parts needed for a complete build- excluding the receiver, handguard, and magazine catch. *USA Made receivers can be found at www.tommybuilttactical.com*HKP-19267$2,499.95 -
H&K HK MP5K PDW German Parts Kit
H&K Heckler & Koch
$8,999.95H&K HK MP5K PDW German Parts Kit Finally after searching all over the country we are able to bring you the rare and ultra-desirable MP5K PDW parts kit. In good to like new condition with a factory marked HK folding stock and the ultra desirable Navy...HKP-20640$8,999.95 -
Sale
H&K HK MP5SD German Parts Kit
H&K Heckler & Koch
Now: $11,000.00Was: $11,999.00H&K HK MP5SD German Parts Kit Genuine German H&K MP5SD parts kit in good condition. Ultra rare offering with all highly desirable parts including a like new Navy 3 position trigger group with ESSL, H&K A3 collapsable stock and the original...HKP-20641Now: $11,000.00Was: $11,999.00