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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Franklin Armory MP5 40/10 Binary Trigger Group - Ambi 3 Position Universal Housing
H&K, Franklin Armory
$1,399.95Franklin Armory BFSIII HK-C1 - Trigger Group For MP5 .40/10mm- Universal Housing Our universal binary trigger group will come set up as a MP5 40/10, but with our Navy 3 position universal housing you will be able to install in a MP5/SP5, HK 93,...HKP-20085$1,399.95 -
H&K 10 Round HK USP/P2000 .40 S&W Magazine Locking Plate
H&K Heckler & Koch
$9.95Magazine Locking Plate For 10 Round Limited Magazines Compatible With: USP Compact 40 USP Compact .357 SIG USP Compact .40 P2000 .40 S&W P30, P30L .40 HK VP40HKP-01598$9.95 -
H&K 21E (7.62x51/.308) Feed Mechanism - Complete
H&K Heckler & Koch
$9,995.95HK21E Feed Mechanism Complete - German HK New genuine HK date-coded and marked 21E complete feed mechanism. These are the last of the genuine feed mechs available and due to the HK21E officially discontinuing the 21E, no additional factory units will...HKP-00584$9,995.95 -
H&K 30 Round HK UMP .40 Magazine - LEO Marked
H&K Heckler & Koch
$99.9530 Round Magazine - LEO Marked - New - UMP .40 S/W This magazine will fit all HK UMP .40 Caliber UMP's as well as the USC-UMP .40 caliber conversions. New factory fresh production HK magazine. The perfect option for those that like to collect LEO marked...HKP-20664$99.95 -
Out Of Stock
H&K 30 Round MP5 9mm Magazine-Straight
H&K Heckler & Koch
$0.00German H&K MP5 9mm 30 Round Straight Magazine Each original German HK manufactured magazine ranges from VG to like new condition. This is the first production MP5 style of magazine. Each is date coded with factory HK markings. No longer made or...HKP-16263$0.00 -
Out Of Stock
H&K 4 Position Ambidextrous 0,1,2,F Burst Trigger Pack
H&K Heckler & Koch
$0.00New HK German 4 position burst trigger pack complete available in your choice of 9mm, 40/10, .223 & .308. We can set up each trigger pack in any caliber you wish (please specify when checking out in the notes section). If no caliber is specified...HKP-00149$0.00 -
Out Of Stock
H&K 91/G3 (7.62x51/.308) Trigger Group (0,1,3,F) - 4 Position - Safe/Semi Only
H&K Heckler & Koch
$0.00HK G3 & HK 91 4 Position (0,1,3, F) Burst Trigger Group Complete - New Factory German Have the look and feel of the original 4-position trigger group. Only this unit offers safe semi-internals and a clipped and pinned housing ready to...HKP-01663$0.00 -
H&K G36 IDZ Stock - Concave
H&K Heckler & Koch
$559.95H&K G36 IDZ Stock Concave When it comes to adjustable, folding G36 stocks, the IDZ tops the list. German made by HK with a concave buttpad for reliability and comfort. Features: 3 position forward & back 3 cheek piece elevation...HKP-21501$559.95 -
Out Of Stock
H&K HK G36 Convex Folding Adjustable IDZ Stock - Black
H&K Heckler & Koch
$399.95H&K HK G36 Convex Folding Adjustable IDZ Stock - Black Features: 3 position forward and back 3 cheek piece elevation positions. Folding capability while retaining the ability to fire with the stock folded. Super robust, compact designHKP-17703$399.95 -
Out Of Stock
H&K HK German Factory Handguns Aluminum Padded Case
H&K Heckler & Koch
$0.00H&K HK German Factory Handguns Aluminum Padded Case New HK German Euro factory case for the HK Expert or HK Elite or any HK USP variant. Rare hard to find and factory brand new. Will also fit all USP and other HK pistol offerings. Pre-cut foam with 2...HKP-17656$0.00 -
H&K HK Mark 23 Extractor
H&K Heckler & Koch
$79.95HK German Mark 23 SOCVOM Extractor New HK German manufacture. This item is no longer being made and is a great spare part to have on hand. Compatible With: Mark 23 SOCOM pistolsHKP-01408$79.95 -
H&K HK Mark 23 Rear Sight Retaining Screw
H&K Heckler & Koch
$19.95HK Mark 23 Rear Sight Retaining ScrewHKP-01628$19.95 -
H&K HK Mark 23 Slide Release Lever
H&K Heckler & Koch
$64.95HK Mark 23 Slide Release Lever Brand new HK German manufacture. Compatible with all HK Mark 23 and SOCOM Pistols.HKP-01596$64.95 -
H&K HK MR556, HK 416 9" M-LOK Handguard - Black
H&K Heckler & Koch
$399.95Handguard - 9" - Black - M-LOK - HK MR556, HK 416 New HK German manufactured forearm for the HK 416 and MR556 firearm. Comes exactly as pictured.HKP-19670$399.95 -
H&K HK MR556/416 Complete Floor Plate
H&K Heckler & Koch
$10.95HK German HK 416, MR556 Floor Plate Extension Complete All steel HK Marked 30, 20 & 10 round floor plates. Each unit comes complete with the rubber bushing installed in the maritime finish. It is a great spare to have on hand as these do break...HKP-15209$10.95 -
Out Of Stock
H&K HK MR556/416 Standard Length Quad Rail Black
H&K Heckler & Koch
$0.00HK 416, MR556 Quad Rail- Standard Length HK German HK416 & MR556 quad rail complete that includes HK 416/MR556 Handguard Screw. This handguard can also be installed on the CR556 models as well. Compatible With: HK 416 HK MR556 HK CR556HKP-02546$0.00 -
H&K HK MR556/416 Steel Maritime Magazine Follower
H&K Heckler & Koch
$14.95H&K HK MR556/416 Steel Maritime Magazine Follower Compatible With: HK 416 factory magazines such as 30, 20 and 10 roundHKP-15452$14.95 -
H&K HK MR762 Firing Pin
HKP HK Parts
$29.95H&K HK MR762 Firing Pin Specifications: Made in the USAHKP-17795$29.95 -
H&K HK MR762 M-LOK 14.7" Handguard - FDE
H&K Heckler & Koch
$429.95Handguard - M-LOK - FDE - 14.7 - HK MR762 - Black Handguard for the HK MR762. It is 14.7 inches in length and has a flat top Picatinny Rail and M-LOK attachment points.HKP-19777$429.95 -
H&K HK MR762/417 Barrel Nut
H&K Heckler & Koch
$99.95HK MR762 Barrel Nut Or Socket Barrel - German HK A must have for any removal or work done to barrel as the barrel nut may need to be replaced.HKP-16597$99.95 -
H&K HK P30 Series Left Grip Shell - Large - Black
H&K Heckler & Koch
$19.95HK P30 Series Left Grip Shell - Large - BlackHKP-01575$19.95 -
H&K HK P30/P2000 Hammer Strut
H&K Heckler & Koch
$15.95HK P2000 & P30 Hammer Strut Compatible With: HK P2000 HK P30HKP-01621$15.95 -
H&K HK P30SK Back Strap - Small - Black
H&K Heckler & Koch
$24.95H&K HK P30SK Back Strap - Small - BlackHKP-18081$24.95 -
H&K HK P7M8/P7M10/P7M13 Piston Roll Pin
H&K Heckler & Koch
$5.95Piston Roll Pin Compatible With: P7M8 P7M10 P7M13HKP-01399$5.95 -
H&K HK SL8 Complete Rear Sight
H&K Heckler & Koch
$99.95H&K HK SL8 Complete Rear Sight This item can be used on other applications as well as the SL8, G36 models.HKP-16354$99.95 -
Out Of Stock
H&K HK SP5 Contoured Style SEF Match Trigger Group
H&K Heckler & Koch
$0.00Contoured Style - SEF - Clipped & Pinned Trigger Group - HK SP5 Ready to drop on your Sp5 receiver. Great replacement trigger group. Each SP5 trigger group includes the following: Properly clipped & pinned housing for SP5 spec shelves The finest...HKP-19422$0.00 -
H&K HK UMP/USC Rear Sight Support Roll Pin
H&K Heckler & Koch
$9.95HK UMP & USC Rear Sight Support Roll Pin This is the axle pin that holds the rear sight assembly to the rear sight housing of the receiver on the USC or UMP firearm.HKP-02155$9.95 -
Out Of Stock
H&K HK USP/USPC Old Style Hammer
H&K Heckler & Koch
$0.00HK USP & USPC Variants 1-4, 9, & 10 Old Style Hammer Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W & .357 HK USP Compact .45 ACP Any USP pre-1995 with the old-style sear...HKP-02766$0.00 -
H&K HK VP/P30/45 Front Sight 6.5mm - Red
H&K Heckler & Koch
$59.95Red Phosphorescent Front Sight - 6.5mm Compatible With: HK VP9 & VP9SK, VP40 HK P30 HK P30L HK P30S HK P30SK HK45, HK45 Tactical HK45 Compact, HK45C TacticalHKP-18832$59.95 -
H&K Mark 23 .45 ACP Thread Cap - Threaded 16x1 RH
H&K Heckler & Koch
$44.95H&K Mark 23 .45 ACP Thread Cap - Threaded 16x1 RH Introducing the new US HK Mark 23 SOCOM Thread Protector, designed for all H&K Mark 23/SOCOM barrels threaded 16x1 RH. This essential accessory protects your valuable threaded barrel and...HKP-20609$44.95 -
Out Of Stock
H&K MP5 40/10 3 Position (0,1,2 Pictogram) Burst Trigger Housing - Push Pin
H&K Heckler & Koch
$0.00H&K MP5 40/10 3 Position (0,1,2 Pictogram) Burst Trigger Housing - Push Pin This factory push pin grip frame features 3 position (0,1,2) pictogram markings, designed for the MP5 40/10 series. It is a new HK German grip frame that provides the...HKP-16469$0.00 -
H&K MP5 40/10 SEF Clipped & Pinned Semi-Auto Trigger Group Complete
H&K Heckler & Koch
$449.95HK German MP5 40, MP5 10mm SEF Clipped & Pinned Semi-Auto Trigger Group - Complete Ready to install on your HK clone or a custom build.HKP-00447$449.95 -
Out Of Stock
H&K MP5, 93/53/33, G3/91 (9mm, 5.56/.223, 7.62/.308) 3 Position (0,1,3 Pictogram) Universal Burst Trigger Housing - Clipped & Pinned
H&K Heckler & Koch
$0.00H&K MP5, 93/53/33, G3/91 (9mm, 5.56/.223, 7.62/.308) 3 Position (0,1,3 Pictogram) Universal Burst Trigger Housing - Clipped & Pinned Introducing the new Factory German trigger housing, designed for use in safe, semi, and burst configurations...HKP-20404$0.00 -
H&K MP5/MP5K/SP5K 10 Round Magazine - RAL 8K
H&K Heckler & Koch
$97.95H&K MP5/MP5K/SP5K 10 Round Magazine - RAL 8K Heckler & Koch factory magazine. We now take this factory magazine and cerakote it with the ultra desirable RAL 8000 color for those looking to customize thier build. 10 round magazine making it ideal...HKP-21441$97.95 -
H&K UMP (.40 S&W/.45 ACP/9mm) Firing Pin Retainer Pin
H&K Heckler & Koch
$7.95HK UMP Firing Pin - Retainter Pin This is the pin that trips the trip lever on the UMP lower.HKP-01894$7.95 -
H&K UMP (.40 S&W/.45 ACP/9mm) Lower Backplate
H&K Heckler & Koch
$24.95H&K UMP (.40 S&W/.45 ACP/9mm) Lower Backplate HK German Backplate for all UMP lowers. You will need to add your existing buffer or order one to make a complete buffer assembly.HKP-16473$24.95 -
Out Of Stock
H&K UMP (.45 ACP) 25 Round Magazine - German LEO Markings - Used
H&K Heckler & Koch
$149.95German HK UMP .45 25 Round Magazine - Used Used PD trade in HK German UMP .45 cal 25 Round Factory Magazines. These magazines will fit all UMP factory firearms as well as the USC's that have been converted to accept UMP magazines. Please Note: The UMP...HKP-17917$149.95 -
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Slide For Lower
H&K Heckler & Koch
$19.95HK USC & UMP Slide For Lower - German New HK German USC slide for conversion of UMP lower.HKP-00268$19.95 -
HDPS HK UMP (.40 S&W/.45 ACP) 5 Prong Flash Suppressor
HDPS
$159.95HK UMP (.40 S&W/.45 ACP) 5 Prong Flash Suppressor This is the much anticipated HDPS 5-prong UMP flash hider- made to fit the flanged UMP barrels. Will fit factory HK UMP barrels as well as the UMP .45/.40 US-made barrels we currently offer...HKP-02368$159.95 -
HKP AR15/M4/M16 Titanium Firing Pin
HKP HK Parts
$24.95AR-15, M4, M16 Titanium Firing Pin - Grade 6 - Enhanced A solid billet CNC offering at nearly 40% lighter than steel firing pins our, titanium firing pins travel faster in the bolt, delivering a quicker lock time and enhancing accuracy. Titanium pins...HKP-17781$24.95