Parts Kits
Complete Your H&K Firearm with Parts Kits - MP5, G36, HK416, and More!
Explore our comprehensive selection of H&K parts kits for your firearm needs. Whether you're into MP5, G36, HK416, G3, UMP, HK417, MR556, or MR762, we have the perfect parts kits to complete your H&K firearm. Don't compromise on quality; choose the best for your weapon. Browse our selection now to find the ideal parts kits for your H&K firearm.
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H&K MP5 9mm A3 Parts Kit With Navy 3 Position Trigger Group
H&K Heckler & Koch
$3,699.95HK German MP5 9mm Used Parts Kit Complete 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 Push Pins - 1 Large and 2 Small 30-Round Curved...HKP-00887$3,699.95 -
H&K MP5-N Parts Kit 100% German - A3 Stock & Navy 3 Position Lower - RARE
H&K Heckler & Koch
$4,499.00MP5-N Parts kit. 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 magazine. All German HK parts kit demilled from PD trade in's. ** Restricted...HKP-15172$4,499.00 -
Out Of Stock
HKP MP5 .40 S&W Pistol Build Kit
HKP HK Parts
$2,099.95MP5 .40 Pistol Build Kit Complete German & USA Made Parts MP5 .40 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-18405$2,099.95 -
MM HK UMP (.40 S&W) Conversion Kit
Michaels Machines
$999.95HK UMP 40 Caliber Conversion Kit With this UMP Conversion kit, UMP .45 sub guns can be converted to .40 caliber. Machined bolt carriers are available for USC/UMP conversion sub guns. This is a simple drop-in conversion. The time required to change...HKP-18754$999.95 -
MM HK UMP 9mm Conversion Kit
Michaels Machines
$889.95HK UMP & USC 9mm Conversion Kit US Made - 9mm UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those who have already done the USC-UMP conversion. The conversion parts are drop-in with...HKP-02286$889.95 -
On Sale
FMK-3 - Submachine Gun - Spare Parts Kit
Now: $189.95Was: $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: -Magazine-Barrel *All NFA Rules Apply*HKP-18479Now: $189.95Was: $299.95 -
Out Of Stock
German HK53 A2 Navy Parts Kit Complete - Used
H&K Heckler & Koch
$0.00HK German HK53 A2 Factory Parts Kit Complete Less De-milled Receiver. Each Parts Kit Includes:HK German Desirable 1/7 Twist Factory Cold Hammer Forged BarrelHK Ambidextrous SEF or Navy Trigger Group (Your Choice Of Lower)Factory HK 53 Wide Forearm (not...HKP-01125$0.00 -
Out Of Stock
GSG9 HK G36C .300 BLK Parts Kit
GSG9
$2,049.00HK G36C .300 Blackout Caliber Parts Kit- USA Complete G36C Semi-Auto Parts Kit. This kit includes all parts needed for a complete build minus the receiver. The barrel and gas block are Black Nitride coated for longevity and resistance against wear and...HKP-18704$2,049.00 -
Out Of Stock
GSG9 HK G36C AR Pistol Parts Kit
GSG9
$1,749.95HK G36C AR Pistol Parts Kit Complete - US Made Complete G36C AR 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-18943$1,749.95 -
GSG9 HK G36K Rifle Kit
GSG9
$1,999.95HK G36K Rifle Parts Kit Complete with Folding Stock - USA Made Complete G36K Semi-Auto Parts Kit with Folding Stock. Includes all parts needed for a complete build minus the receiver and magazine catch.*USA Made receivers can be found at www...HKP-18650$1,999.95 -
Out Of Stock
H&K 53 A2 Complete Ambi/Burst Parts Kit
H&K Heckler & Koch
$0.00HK German Factory Newer Production HK53A2 SEF or (0-1-2) Burst Trigger Group, Factory Parts Kit Complete Minus The De-milled Receiver. Each Parts Kit Includes The Following Factory Used HK53 Parts: HK German Desirable 1/7 Twist Factory Cold Hammer...HKP-01261$0.00 -
Out Of Stock
H&K 53 A3 Parts Kit - (0-1-25) Trigger Housing
H&K Heckler & Koch
$0.00HK German HK53A3 Factory Parts Kit Complete Minus The De-milled Receiver. Each Parts Kit Includes: HK German Desirable 1/7 Twist Factory Cold Hammer Forged Barrel HK German A3 retractable stock HK 0-1-25 trigger group Wide Factory Correct Forearm Bird...HKP-14342$0.00 -
Out Of Stock
H&K HK G36K Parts Kit for HDPS Stock Block Conversion
H&K Heckler & Koch
$0.00G36K Parts Kit Complete Less Stock Hinge Section Factory German HK G36K parts kit with the most desirable of the necessary parts for an HDPS stock block conversion (see below). Tom Bostic offers the conversion work on these kits (Tom Bostic: 240-274-0335...HKP-16514$0.00 -
H&K HK MP5 9mm Single Shot Reverse Stretch Build Kit
H&K Heckler & Koch
$1,849.95California Spec Single Shot Reverse Stretch Kit - German & USA Made Parts: This kit was built with the CA market in mind. This kit has a specially designed locking piece that once installs it renders the kit a single shot style roller lock. This kit...HKP-19698$1,849.95 -
Out Of Stock
H&K HK MP5 Parts Kit A3 4-Position Ambidextrous Lower
H&K Heckler & Koch
$0.00HK German MP5 9mm Used Parts Kit Complete(Minus Receiver Of Course).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 Push Pins - 1 Large and 2 Small 30...HKP-01301$0.00 -
H&K HK33 A3 German Parts Kit - Used
H&K Heckler & Koch
$4,499.00HK33 A3 Parts Kits - Used Surplus Parts kit does not include a receiver Demilled & prepared per BATF specifications. HK 33 parts kit with a rare A3 collapsible stock. 0, 1, 25 factory correct trigger group, wide handguard, HK date-coded barrel, and...HKP-20723$4,499.00 -
Out Of Stock
H&K HK33A2 Parts Kit-Used
H&K Heckler & Koch
$0.00HK33 A2 Parts Kits - Used Surplus Parts kit does not include a receiver Demilled & prepared per BATF specifications.These are the last ones available we are told there will be no more available at this price.HK93 style receiver flats are also...HKP-00783$0.00 -
H&K HK53 A3 German Parts Kit - Used
H&K Heckler & Koch
$7,499.95HK German HK53 A3 Factory Parts Kit Complete Minus The De-milled Receiver. Each Parts Kit Includes: HK German Desirable 1/7 Twist Factory Cold Hammer Forged Barrel HK Ambidextrous 2 Round Burst Trigger group Factory HK 53 Wide Forearm 4 Prong Factory...HKP-20729$7,499.95 -
Out Of Stock
H&K MP5 .40 S&W Parts Kit
HKP HK Parts
$2,699.95HK MP5 .40 Pistol German Parts Kit - Used. Genuine German HK MP5 40 parts kit in the pistol configuration Barrel - 3 lugged & threaded, cold hammer-forged Trigger Group - Ambidextrous Navy 0,1, F Trigger Group or SEF Navy your choice A1 US-made end...HKP-16719$2,699.95 -
Out Of Stock
H&K MP5 9MM Parts Kit 100% German - A2 Stock & 4 Position Lower
H&K Heckler & Koch
$0.00HK German MP5 9mm Used Parts Kit Complete - Less Receiver. All MP5 Kits: HK 3-Lug MP5 Barrel - cold hammer forged Cocking Tube Front Sight Tower Wide Fore arm - Black Bolt Group - MP5 Full Auto Push Pins - 1 Large and 2 Small 30 Round Curved Magazine -...HKP-00776$0.00 -
H&K MP5F Parts Kit 3 Position Navy A3 - RARE
H&K Heckler & Koch
$3,999.95HK German MP5F A3 9mm Parts Kit Complete - USED 100% GERMAN HK MP5F correct parts the real deal and the most sought after parts kit available (Minus Receiver Of Course). All MP5 Kits: 100% German Parts HK 3-Lug MP5F Barrel - cold hammer forged 3 position...HKP-19559$3,999.95 -
H&K UMP (.40 S&W) Conversion Kit - Used
H&K Heckler & Koch
$1,087.95HK UMP .40 Caliber Conversion Kit This UMP conversion kit provides the necessary components to convert .45 sub-guns to .40 caliber. Machined bolt carriers are available for USC/UMP conversion sub-guns. This is a simple, drop-in conversion requiring a...HKP-00729$1,087.95 -
H&K UMP (.40 S&W) Parts Kit - German - Used
H&K Heckler & Koch
$2,499.95HK 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. Please note: Restricted mag state residents will need to...HKP-00588$2,499.95 -
Out Of Stock
H&K UMP (9mm) Parts Kit
H&K Heckler & Koch
$0.00HK UMP 9mm Parts Kit - Like New Condition Front Sight 9mm Bolt Group Complete 9mm Ejector Lever Folding Stock 0,1,F Lower Trigger Group 1 x 30 round 9mm Factory Magazine 8 Inch - 9mm Barrel Barrel Retaining Pin Cocking Tube Support Rear Push Pin **...HKP-02425$0.00 -
HKP HK UMP (9mm) Conversion Kit - 3 Lug - Threaded Barrel 1/2 x 28
HKP HK Parts
$999.95HK UMP 9mm Conversersion Kit - USA - 9mm UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those who have already done the USC-UMP conversion. The total conversion requires approximately...HKP-02285$999.95 -
Out Of Stock
HKP HK UMP (9mm) Conversion Kit -Threaded 1/2 x 28
HKP HK Parts
$679.95HK UMP 9mm Conversion Kit - Threaded Barrel 1/2 x 28 9mm UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those that have already done the USC-UMP conversion. The conversion parts are drop...HKP-02287$679.95 -
Out Of Stock
HKP MP5 .40 S&W RS Reverse Stretch Parts Kit
HK Parts, Heckler & Koch
$2,099.95MP5 .40 Reverse Stretch Pistol Build Kit Complete German & USA Made Parts MP5 .40 Reverse Stretch parts kit complete with all the parts needed for an MP5.40 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be...HKP-19819$2,099.95 -
Out Of Stock
HKP MP5 10mm Pistol Build Kit
HKP HK Parts
$2,199.95MP5 10mm Build Kit With Flat, Top Rail & Weldment Set HK Parts MP5 Build Kit is the best priced value available anywhere. There is a limited supply and they will be gone before you know it. The MP5 10mm parts kit comes complete with all the parts...HKP-18409$2,199.95 -
MP5K PDW German Parts Kit - 4 Position Trigger Group
$8,999.95MP5K PDW German Parts Kit: 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 4 position 0, 1 , 3 , F burst trigger group , 3-lug threaded barrel (1/2 x 32...HKP-20759$8,999.95 -
Out Of Stock
Tommy Built HK G36C .300 BLK Conversion Kit
Tommy Built
$874.95HK G36C 556/223 To .300 Blackout Caliber Conversion - USA The Tom Bostic .300 BLK conversion barrel set up is designed to drop in any G36C or Sl8 to G36C conversion and reuse your G36C op-rod/spring set, gas piston & barrel nut. Each set up comes...HKP-18268$874.95 -
On Sale
H&K HK11 LMG 7.62×51mm NATO Parts Kit
H&K Heckler & Koch
Now: $2,495.95Was: $2,895.95HK11 LMG Parts Kit – 7.62×51mm NATO HK 11 Parts Kit 7.62x51mm demilled to BATFE specs with 2 spare G3 aluminum magazines. The HK11 was built during the 70’s and 80’s. These are interchangeable with other HK Variants and can be...HKP-20912Now: $2,495.95Was: $2,895.95