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 MP5K Parts Kit - 9mm - Pistol Build
HKP HK Parts
$1,889.95MP5K, 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 1/2x28 with...HKP-02604$1,889.95 -
Out Of Stock
HK MP5 to MP5SD Front End Conversion Kit
DTAC Dakota Tactical
$1,299.95Dakota Tactical HK MP5SD Front End Kit If you have wanted to convert that MP5 or SP5 to an SD but didn't know where to start, look no further. Our kit provides all necessary components (aside from suppressor) to do so. With a DTAC Cage and SD guard...HKP-21318$1,299.95 -
HK33 Pistol Parts Kit - Receiver Flat and Weldment Set - RCM Barrel
H&K Heckler & Koch
$1,834.95HK 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$1,834.95 -
HK G36K Parts Kit - Buttstock 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. NOT compatible with semi-auto receivers like the S5 Tactical SA receiver without modifying the bolt. For authentic,...HKP-00269$3,395.95 -
HK MP5 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...HKP-19477$1,929.95 -
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...HKP-22399$2,499.95 -
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...HKP-00588$1,829.95 -
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...HKP-21533$1,889.95 -
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...HKP-17301$329.95 -
Out Of Stock
HK21 FMP Complete Build Kit - Non Matching Numbers - 14.5" Barrel
FMP HK CONTRACT
$3,289.95HK21 Complete Build Kit- Non Matching Numbers - 14.5" Barrel HK Parts bring you yet another exhaustive parts kit. Our HK21 kit includes everything you need to resurrect an iconic classic and hit the range for some belt-fed action. Paired with...HKP-21848$3,289.95 -
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...HKP-20524$2,389.95 -
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,...HKP-17121$1,679.95