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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On Sale
CQT FX Simunition Conversion Kit for MP5 9mm - Grey - USED
Simunition
Now: $219.95Was: $319.95CQT FX Simunition Conversion Kit for MP5 9mm - Grey - USED The CQT FX Simunition conversion kit is in excellent, like-new condition and comes with original factory packaging. This is your chance to grab one of the last remaining units, so...HKP-99066Now: $219.95Was: $319.95 -
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 Demilled 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
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 Demilled Receiver. Each Parts Kit Includes The Following Factory Used HK53 Parts: HK German Desirable 1/7 Twist Factory Cold Hammer Forged...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 Demilled Receiver This complete HK53A3 parts kit includes everything needed to build or upgrade your firearm, except for the demilled receiver. Each kit features authentic German HK components: Each...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. Contact Black Ops Defense for your stock block conversion. Includes: 3...HKP-16514$0.00 -
H&K HK MP5 9mm Single Shot Reverse Stretch Build Kit
H&K Heckler & Koch
$1,649.95California 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$1,649.95 -
H&K HK MP5 Parts Kit A3 4-Position Ambidextrous Lower
H&K Heckler & Koch
$5,499.95HK German MP5 9mm Used Parts Kit Complete (Minus Receiver Of Course) 100% GERMAN PARTS All MP5 Kits: HK 3-Lug MP5 Barrel - cold hammer forged Cocking Tube Front Sight Tower Wide Forearm - Black Bolt Group - MP5 Full Auto Push Pins - 1...HKP-01301$5,499.95 -
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 -
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 -
Out Of Stock
H&K UMP (9mm) Parts Kit
H&K Heckler & Koch
$0.00HK UMP 9mm Parts Kit - Like New Condition Click this link to complete your build with a DEFGUNZ DEF9 receiver. Includes: Front Sight 9mm Bolt Group Complete 9mm Ejector Lever Folding Stock 0,1,F Lower Trigger Group 1 x 30 round 9mm Factory...HKP-02425$0.00 -
Out Of Stock
HKP HK UMP 9mm Conversion Kit -Threaded 1/2x28
HKP HK Parts
$679.95HKP HK UMP 9mm Conversion Kit -Threaded 1/2x28 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 in with...HKP-02287$679.95 -
HKP MP5K .40 S&W Pistol Build Kit
$2,289.95HKP MP5K .40 S&W 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...HKP-21534$2,289.95 -
Out Of Stock
HKP/H&K UMP 9mm Conversion Kit - Threaded Barrel 1/2x28 - 3-Lug
HKP HK Parts
$999.95HKP/H&K UMP 9mm Conversion Kit - Threaded Barrel 1/2x28 - 3-Lug 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...HKP-02285$999.95 -
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 -
RCM HK P30 .40 to 9mm Conversion Barrel - Threaded - 13.5x1
RCM
$214.95RCM HK P30 .40 to 9mm Conversion Barrel - Threaded - 13.5x1 This 9mm conversion barrel is a drop-in replacement that allows your P30 to shoot the popular 9mm cartridge. Comes with a thread protector. Each barrel is made from ordnance-grade steel,...HKP-21786$214.95