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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HK G36K Parts Kit - With Rear Hinge Section
H&K Heckler & Koch
$3,395.95G36K Parts Kit Complete With Stock Hinge Section Factory German HK G36K parts kit with the rare 3" + stock hinge section. Features: 2 position FBI pictogram trigger group 30-round German HK magazine G36 magwell G36 K or C folding stock- G36K...$3,395.95 -
Out Of Stock
B&T TP9/MP9 Survival Set Spare Parts Kit
B&T Brugger & Thomet
$329.95B&T BT TP9, BT MP9 Survival Set Spare Parts Kit This is must have spare parts kit for those high mileage parts. Includes: Firing pin (BT-30113) Locking pin (BT-30127) Buffer (BT-30134) Connector (BT-30155) Guide rod (BT-30156) Extractor plunger...$329.95 -
HK MP5SD Parts Kit - Pistol Build - 9mm - Binary Trigger - Receiver Flat & Weldment Set
HKP HK Parts
$2,389.95HKP MP5SD 9mm Pistol Build Kit With Flat, Top Rail & Weldment Set - SEF Binary Trigger MP5SD 9mm parts kit complete with all the parts required for an MP5 semi-auto pistol build. Each kit comes with all 6 of the needed US made compliance parts to be...$2,389.95 -
HK MR762 A4 Upper Receiver Kit - 13"
H&K Heckler & Koch
$2,499.95HK MR762 A4 Upper Receiver Kit - 13" The MR762 A4 kit contains a complete upper receiver and barrel assembly. The closed system design significantly reduces malfunctions typically associated with direct-impingement gas systems, as hot carbon fouling and...$2,499.95 -
HK MP5 Parts Kit - Reverse Stretch Pistol - 9mm
HKP HK Parts
$1,679.95MP5 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,...$1,679.95 -
HK21 FMP Complete Build Kit - Non Matching Numbers - MM Barrel
HKP HK Parts
$4,294.97HK21 Complete Build Kit- Non Matching Numbers HK Parts brings you another exhaustive parts kit. Our HK21 parts kit includes everything you need to resurrect an iconic classic and hit the range for belt-fed action. We also included our own hanger with a...$4,294.97 -
HK UMP Parts Kit - .40 S&W
H&K Heckler & Koch
$1,829.95HK German UMP .40 Cal Parts Kit - Used HK UMP .40 German parts kit complete with all the factory HK parts minus the receiver. Perfect for those who are doing a custom build or for spare parts. Click this link to complete your build with an S5 receiver...$1,829.95 -
HK MP5 10mm Reverse Stretch Parts Kit
HKP HK Parts / Heckler & Koch
$1,889.95MP5 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...$1,889.95 -
On Sale
FMK-3 Parts Kit- Submachine Gun
Other
Now: $139.95Was: $199.95FMK-3 - Submachine Gun - Parts Kit Comes with everything pictured. Used, fair/good condition de-milled parts kits. Kits do NOT include a magazine or barrel. *All NFA Rules Apply*Now: $139.95Was: $199.95 -
HK MP5K, SP5K Parts Kit - 9mm
$1,929.95HK 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...$1,929.95 -
HK MP5 9mm Parts Kit 100% German - A2 Stock - SEF Lower
H&K Heckler & Koch
$2,239.95HK 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...$2,239.95 -
HK MP5K Parts Kit - 10mm - Pistol Build
HKP HK Parts
$1,889.95HKP MP5K 10mm Pistol Build Kit MP5K 10mm complete pistol build kit. Featuring the latest in highest quality components for an unparalleled build. Equipped with a 9/16x24 3-lug threaded barrel to accept a wide variety of muzzle devices and suppressors...$1,889.95