All Parts
At HK PARTS, we bring you a wide array of high-quality H&K accessories and components for your favorite firearms. Whether you're upgrading your H&K pistol or rifle, or even looking for parts kits, we've got you covered. Discover a range of top-rated components for popular models like VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, we have it all. Enhance your firearm's performance and functionality with our premium components.
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Out Of Stock
H&K SP5K Spec Only 9mm 3 Position (0,1,F Pictogram) Ambidextrous Navy Style Housing - Clipped & Pinned
H&K Heckler & Koch
$0.00H&K SP5K Spec Only 9mm 3 Position (0,1,F Pictogram) Ambidextrous Navy Style Housing - Clipped & Pinned This HK German Navy housing is specifically designed for the HK SP5K. Featuring ambidextrous functionality and pictogram markings, this housing...HKP-17924$0.00 -
Out Of Stock
H&K Thread Protector/Spare Parts Holder Grip Cap - USED
H&K Heckler & Koch
$0.00USED factory German HK storage, spare parts holderThis part would be better termed as a thread protector holder or spare parts holder. When the thread protector needs to be removed from the barrel, for cans or muzzle attachments, the thread protector...HKP-00113$0.00 -
Out Of Stock
H&K Trigger Box Full Auto
H&K Heckler & Koch
$0.00German HK used stripped HK trigger pack This item is for full auto SEF trigger pack internals or can be converted to semi. Not for use with ambidextrous trigger housings, or selectors.HKP-16247$0.00 -
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. Click this link to complete your build with a DEFGUNZ...HKP-00588$2,499.95 -
Out Of Stock
H&K UMP (.40 S&W/.45 ACP/9mm) 4 Position Burst Lower (0,1,2,Full)
H&K Heckler & Koch
$0.00New HK German 4 Position (0,1,2,Full) Burst LowerFits All HK UMP's. This item can be adapted for use on the USC-UMP Conversion if the F/A internals are removed & the USC (semi-auto) internals are installed. This item is a very popular item for the...HKP-00593$0.00 -
Out Of Stock
H&K UMP (.40 S&W/.45 ACP/9mm) Demilled Rear Receiver Section
H&K Heckler & Koch
$0.00HK UMP De-milled Receiver SectionThis is a demilled factory HK UMP rear receiver section that is perfect for the new Tom Bostic USC-UMP conversions. This section is the perfect length in order to do the USC/UMP conversion. Last one available.HKP-01659$0.00 -
Out Of Stock
H&K UMP (.40 S&W/.45 ACP/9mm) Folding Stock - Used
H&K Heckler & Koch
$0.00HK UMP Folding ButtstockUsed taken from German HK police department guns, German Heckler & Koch folding stock. This is a required part for the USC-UMP Conversion (stock block B). All UMP folding stocks come with HK date code.HKP-02222$0.00 -
Out Of Stock
H&K UMP (.40 S&W/.45 ACP/9mm) Incomplete Pistol Grip (0,1)
H&K Heckler & Koch
$0.00UMP Pistol Grip Stripped & Incomplete - 2 Position (0,1) Pictogram New HK German manufacture, rare and hard to find. If you have an HK USC you can use this housing with the USC lower internals for a complete USC to UMP lower assembly that you can use...HKP-17815$0.00 -
Out Of Stock
H&K UMP (.40 S&W/.45 ACP/9mm) Incomplete Pistol Grip (0,1,2,F)
H&K Heckler & Koch
$0.00Stripped UMP Pistol Grip - 4 Position (0,1,2,D) PictogramHKP-17817$0.00 -
Out Of Stock
H&K UMP (.40 S&W/.45 ACP/9mm) Incomplete Pistol Grip (0,1,F)
H&K Heckler & Koch
$0.00UMP Pistol Grip Stripped & Incomplete - 3 Position (0,1,F) Pictogram New German HK UMP 3 position lower.HKP-17816$0.00 -
Out Of Stock
H&K UMP (.45 ACP) Barrel - Used
H&K Heckler & Koch
$0.00HK UMP 45 ACP 8 Inch Barrel - German German HK Cold Hammer Forged Barrel- UsedUsed PD trade in authentic German HK UMP .45 barrel. Polygonal and cold hammer forged. A rare part as the barrel is not a part that can be bought from HK separately. The only...HKP-14955$0.00 -
Out Of Stock
H&K UMP (.45 ACP) Bolt Group - Used
H&K Heckler & Koch
$0.00German HK UMP .45 Factory Full Auto Bolt Group Complete Used.Used German bolt carrier complete that is tungsten filled and the factory correct HK UMP .45 cal bolt group. Comes less the recoil assembly.HKP-01231$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
H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Burst Lower Slide (0,1,2)
H&K Heckler & Koch
$14.95HK G36 & UMP Slide For 3 Position Burst Only Lowers - 0,1,2 Only Compatible With: HK UMP HK G36HKP-01887$14.95 -
Out Of Stock
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Cocking Handle Assembly - Used
H&K Heckler & Koch
$0.00HK German USC/UMP Cocking Handle Assembly - UsedIncludes Cocking Handle Support Spring Cocking Lever Support Roll Pin for Cocking HandleHKP-00255$0.00 -
Out Of Stock
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Hammer Spring - Right
H&K Heckler & Koch
$14.95HK UMP & USC Right Side Hammer Spring For LowersHKP-01892$14.95 -
H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Rear Sight Support
H&K Heckler & Koch
$19.95H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Rear Sight SupportHKP-16362$19.95 -
Out Of Stock
H&K USC (.45 ACP) 10 Round Factory Magazine Body - BODY ONLY
H&K Heckler & Koch
$0.00HK USC .45 10 Round Magazine Body. This is the only magazine body that HK offers for the HK USC. Compatible With: HK USC CarbinesHKP-16370$0.00 -
H&K USC (.45 ACP) Magazine Floor Plate
H&K Heckler & Koch
$8.95H&K USC (.45 ACP) Magazine Floor PlateHKP-16380$8.95 -
Out Of Stock
H&K USC (.45 ACP) Magazine Locking Plate Insert
H&K Heckler & Koch
$8.95H&K USC (.45 ACP) Magazine Locking Plate InsertHKP-16384$8.95 -
H&K USP .45 Elite Incomplete Slide - Black
H&K Heckler & Koch
$699.95USP .45 Elite - Incomplete SlideHKP-20560$699.95 -
Out Of Stock
H&K USP 9mm Tactical Barrel - Threaded 13.5x1 LH
H&K Heckler & Koch
$0.00H&K USP 9mm Tactical Barrel - Threaded 13.5x1 LH This barrel is a drop-in replacement barrel for standard full-size USP 9mm Pistols. Cold hammer forged, polygonal rifled, and made in Germany. Specifications: Threaded 13.5x1 LH Overall Length 4...HKP-00797$0.00 -
H&K USP40 Expert Clamping Sleeve
H&K Heckler & Koch
$9.95H&K USP40 Expert Clamping SleeveHKP-02160$9.95 -
H&K VP9/SK & VP40 Insert Housing w/ Ejector
H&K Heckler & Koch
$49.95H&K VP9/SK & VP40 Insert Housing w/ Ejector Insert housing with ejector for HK VP9 & VP40. Compatible With: HK VP9 HK VP9SK HK VP40HKP-16804$49.95 -
H&K VP9SK, VP40SK Back Strap - Medium - Gray
H&K Heckler & Koch
$29.95H&K VP9SK, VP40SK Back Strap - Medium - Gray New HK German manufacture. Compatible With: HK VP9SK HK VP40SKHKP-18582$29.95 -
H&K VP9SK, VP40SK Back Strap - Small - FDE
H&K Heckler & Koch
$29.95H&K VP9SK, VP40SK Back Strap - Small - FDE New HK German manufacture. Compatible With: HK VP9SK HK VP40SKHKP-18961$29.95 -
H&K/Hogue Exemplar Manual Folder
Hogue
$179.95H&K/Hogue Exemplar Manual Folder Blade: 3.25" Clip Point Blade - Stone TumbledSolid Black G10 Frame Features: Locking mechanism: able lock (ambidextrous bar lock enhanced) Frame: solid black G10 Deep carry pocket clip (right or left handed, tip up...HKP-21366$179.95 -
H&L HK G36, HK SL8 Roll Pin for Gas Piston - Black
H&K Heckler & Koch
$9.95H&L HK G36, HK SL8 Roll Pin for Gas Piston - BlackHKP-16386$9.95 -
Out Of Stock
H&L HK SL8 Stock Spacer - Gray
H&K Heckler & Koch
$0.00HK SL8 Stock SpacerHK German SL8 stock spacer. These stackable spacers will allow the user to gain extra length of pull for the desired length on the SL8 factory stock. Spacer fits all SL8 rifles including the new all black SL8-6 rifles.HKP-18054$0.00 -
Sale
HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block C - BLEMISHED
HDPS
Now: $99.95Was: $159.95HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block C - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Each unit comes with a new push-pin design...HKP-02613-BNow: $99.95Was: $159.95 -
Out Of Stock
HK 91/G3 (7.62x51/.308) Heavy Recoil Buffer
$199.95HK Heavy Recoil Buffer For HK Style Firearms This is made 100% in the USA by one of the best HK gunsmiths. Each unit is based on the original HK German 2-stage factory heavy buffer. Compatible With: HK 91, G3, PTR SAR-3/8, FMP, Vector, SR9, PTR...HKP-01067$199.95 -
HK Fray Fixed 4.2" Clip Point Blade - FDE
H&K Heckler & Koch
$150.00HK Fray Fixed 4.2" Clip Point Blade - FDE Features: Frame: black over-molded rubber scales (includes black paracord - 1/8" diameter) Tail jimping: provides for better traction in reverse grip Includes automatic retention sheath (1.7 oz...HKP-20194$150.00 -
Out Of Stock
HK G3 .22 Conversion Magazine
$99.95HK G3 .22 Conversion Magazine HK .22 Caliber Conversion Kit Magazine for The G3/91. Ideal for those that have the caliber conversion kit and wants to stack up on spare magazines. Condition is used to like new in the gray paint finish that comes in all...HKP-20750$99.95 -
Out Of Stock
HK G36E Barrel
USA
$499.95Barrel - USA - HK G36E Brand new HK G36E barrel. Specifications: Barrel length 19"HKP-19273$499.95 -
HK G41 Dust Cover w/ Ejection Port Door
H&K Heckler & Koch
$29.95HK G41 Dust Cover W/ Ejection Port DoorHKP-02048$29.95 -
$24.95 -
$9.95 -
$39.95 -
$4.95