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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Sale
H&K HK G36 Poster
H&K Heckler & Koch
Now: $4.95Was: $14.95H&K HK G36 Poster Limited edition print no longer in production. Shows all models of the famous G36 battle rifle. Available while supplies last! Specifications: Height - 24" Width - 18"HKP-16688Now: $4.95Was: $14.95 -
H&K HK MR556/416 Vented Slimline Gas Block
H&K Heckler & Koch
$135.00HK German MR556, 416 Gas Block Complete - Low Profile This part is the factory slim-line, low-profile gas block for the MR556/HK416. There are no bayo lug or sling attachment points. This is the factory-correct gas block found on the...HKP-02660$135.00 -
H&K HK P2000/P30/USP Heavy Firing Pin Block Spring
H&K Heckler & Koch
$9.95HK P2000 & P30 Heavy Firing Pin Block Spring This is the heavy LEM spring found on the LEM conversion. Compatible With: Any post-2005 production USP & UPSC P2000 P2000SK P30 P30SK Will fit the HK45 & HK45C modelsHKP-01603$9.95 -
H&K HK VP9/VP9SK, VP40 Right Side Slide Release - Black
H&K Heckler & Koch
$18.95Right Side VP9, VP40 Slide Release Lever Compatible With: HK VP9 HK VP9SK HK VP40HKP-16794$18.95 -
H&K HK VP9/VP9SK, VP40 Sear Release Catch - Black
H&K Heckler & Koch
$7.95Sear Release Catch HK VP9, VP40 Compatible With: HK VP9 HK VP9SK HK VP40HKP-16798$7.95 -
H&K MP5 & MP5K Railed Scope Mount - MLI - RAL 8000
H&K Heckler & Koch
$279.99HK German Low Profile Mount For HK MP5, MP5K- MLI - RAL 8000 HK MP5, MP5K low profile picatinney scope mount. Manufactured in house at HK Germany as part of the "Mid-Life Improvement" upgrade for the MP5 family of firearms. The first Picatinny style low...HKP-17661$279.99 -
H&K Navy Extended Selector Lever - 3 Position
H&K Heckler & Koch
$199.95HK Ambidextrous Left Side EXTENDED (ESSL) 3 Position Navy Selector Lever New German HK Extended lever for all 3 position navy ambidextrous trigger packs or trigger groups. It will not fit SEF-style trigger packs.HKP-00125$199.95 -
H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Buttstock Locking Piece
H&K Heckler & Koch
$14.95HK G36 & UMP Buttstock Push Button This is a factory HK German replacement button for the HK G36 and HK UMP stock.HKP-02468$14.95 -
HK G36/SL8 (5.56/.223) Bolt Group Fork
USA
$10.95G36 & Sl8 Bolt Group Fork For Cocking Handle - USHKP-18774$10.95 -
HK German Leather Sling
H&K Heckler & Koch
$99.95German HK Leather 2 point sling - New Comes with HK sling hook. Complete and new condition. Made with leather straps and steel hardware and HK sling hook. Compatible With: HK91 G3 PTR91 & CETMEHK93 33 53HK94 MP5HK clones or other custom...HKP-20485$99.95 -
HK UMP .45 ACP Barrel - Threaded .578x28
HDPS
$349.95HK UMP .45 ACP Barrel - Threaded .578x28 HDPS UMP barrels are perfect for the USC to UMP conversions and for a replacement UMP .45 ACP barrel. They are considered by many to be the finest US-made barrel available. This barrel is the same length as a...HKP-20872$349.95 -
HKP .40 S&W Micro Comp - Threaded 14.5x1 LH
HKP HK Parts
$29.95HKP .40 S&W Micro Comp - Threaded 14.5x1 LH The HK Parts Micro Comp & Thread Protector is a lightweight, dual-function device serving as both a compensator and thread protector. It attaches easily to any factory-spec 14.5x1 LH .40 S&W barrel,...HKP-19954$29.95 -
HKP HK VP9 Stand Off Device - Black
HKP HK Parts
$109.95HKP HK VP9 Stand Off Device - Black The HK Parts VP9 standoff is designed to keep the slide in battery to allow discharge when the firearm is pressed against or comes into contact with an object. It is an excellent self-defense addition. The standoff...HKP-19143$109.95 -
HKP HK VP9/VP9SK, VP40 Enhanced Slide Cap - Blue
HKP HK Parts
$29.95Enhanced Slide Plate Cover - Blue - VP9, VP9 Tactical, VP9SK & VP40 Enhanced HK VP9, VP40 Alloy Slide Plate. This enhanced model cover has no firing pin viewing window and is machined to cover as MUCH surface area as possible to seal the firearm from...HKP-18721$29.95 -
HKP MP5SD 9mm Front End Kit
HKP HK Parts
$1,199.95HK MP5SD Front End Build Kit The HK Parts MP5SD front end kit includes everything required (except suppressor) to build an MP5SD front end including the best US and German components available. Each kit counts as 4 922r USA-made parts toward the...HKP-02399$1,199.95 -
Magpul M-LOK 7 Slot Rail Section
Magpul
$21.95Magpul M-LOK 7 Slot Rail Section Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Aluminum Rail Sections allow the attachment of various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc. Machined...HKP-19569$21.95 -
Out Of Stock
RCM HK USP .40 S&W Tactical Barrel - Threaded 9/16x24
RCM
$259.95RCM HK USP .40 S&W Tactical Barrel - Threaded 9/16x24 Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the best replacement barrel for the HK USP full-size .40 S&W...HKP-17744$259.95 -
Sale
Sig Sauer SIG P322 25-Round .22LR Magazine - Black
Sig Sauer
Now: $29.95Was: $39.9925 Round Magazine - 22LR - SIG P322 This magazine features a loading assist feature making it easier to load the magazine. Simply pull down slightly on the loading tabs to remove tension from the magazine follower, leaving enough room for one round...HKP-20563Now: $29.95Was: $39.99 -
Talon Grip HK45C Rubber - Black
Talon Grip
$19.99TALON Grip - HK45C - Rubber Black TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you maintain control. Installation is quick and easy. The pistol grips will...HKP-20258$19.99 -
BFSIII HK91, G3, PTR91 HK-C1 Franklin Binary SEF Navy Style Trigger Group
FA Franklin Armory
$849.95Franklin Armory BFSIII HK-C1 - Trigger Group - SEF Navy Style - HK91, G3, PTR91 3 Position HK Binary Trigger Group Binary triggers count as 4 922r compliant components. The components that count towards 922r compliance include the trigger pack box,...HKP-19646$849.95 -
Choate PTR PDW & HK 51 (7.62x39) & (7.62x51/.308) Tactical Folding Stock - Adjustable
Choate
$239.95Choate PTR PDW & HK 51 Tactical Folding Stock - Adjustable The adjustable length system lets smaller-stature shooters or officers wearing body armor have a weapon that fits their needs. This stock also has spacers to allow the stock to be lengthened...HKP-14537$239.95 -
Comp-Tac HK VP9L Button Comp Carry Holster - Right Hand
Comp-Tac
$79.95Rail Mount Compensator & Comp Weight - International Holster - Right Hand - HK VP9L, VP9L, VP9 Match Optics Ready - BUTTON At last a custom made Comp-Tac international OWB holster for your HK pistol that allows you to have the rail mount compensator,...HKP-20114$79.95 -
Out Of Stock
DTAC MP5K/SP89/SP5K 9mm Modular Handguard - M-LOK
DTAC Dakota Tactical
$159.95DTAC MP5K/SP89/SP5K 9mm Modular Handguard - M-LOK Features: Made in the USA (922r compliant part) M-LOK accessory compatible 6 ergonomically placed slots for maximum versatility Exclusive extended forward accessory mounting 1-piece main body machined...HKP-17808$159.95 -
Out Of Stock
GSG9 HK G36 (5.56/.223) Incomplete Bolt Head
GSG9
$0.00G36 Incomplete Bolt Head - USA G36 bolt head allows the use of double stack magazines in your SL8 conversion to high-capacity G36, Magpul, or AR15 magazines.HKP-00802$0.00 -
GSG9 HK G36 FBI 0,1 Lower Complete
GSG9
$399.95HK GSG9 G36, G36K, G36C - FBI (0,1) Lower New HK US FBI (0,1) G36 lower complete with internals. This is also a popular item for use on the SL8 to G36 conversions. Please note: Do NOT dry fire.HKP-20181$399.95 -
H&K (5.56/.223) & (7.62x51/.308) Contact Piece For Paddle Mag Release
H&K Heckler & Koch
$29.95HK .223/556 & 308 Contact Piece For Paddle Magazine Release German HK manufacture. The contact piece is used in the magazine release assembly for the paddle mag release.HKP-00465$29.95 -
H&K -4 Roller For Bolt Head 7.96mm - Under-sized
H&K Heckler & Koch
$29.99H&K -4 Roller For Bolt Head 7.96mm - Under-sized The proper roller size is essential for proper head spacing and bolt gap. New HK German not surplus or used goods. German-made -4 roller, each roller is priced per roller.HKP-00504$29.99 -
H&K 90 Series Trigger
H&K Heckler & Koch
$19.95H&K 90 Series Trigger New German 90 series Compatible With: HK91, G3, PTR HK93, 33, 53 HK MP5, 94, Zenith, POF, MKE Clone or other custom buildsHKP-18706$19.95 -
H&K G36/SL8 (5.56/.223) Bolt Head Ejector Pin
H&K Heckler & Koch
$7.95Bolt Head Ejector Pin For G36 & SL8 This item is the pin that holds the ejector & ejector spring in place. It is a common wear and replacement item and a must-have when doing bolt head maintenance.HKP-01876$7.95 -
H&K HK G36C/G36K Gas Piston
H&K Heckler & Koch
$89.95HK German G36C & G36K Gas Piston - Complete New HK German factory G36C and G36K gas piston complete with sealing rings installed. A great spare or replacement part. This is also a popular part for those upgrading to an SL8 to G36K or C barrel length...HKP-00352$89.95 -
H&K HK MR556/416 Bolt Catch Plunger
H&K Heckler & Koch
$9.95HK MR556 & HK 416 Bolt Catch PlungerHKP-02655$9.95 -
H&K HK MR762/417/G28 Ambidextrous Sling Adapter
H&K Heckler & Koch
$129.95MR762, HK417 & G28 Ambidextrous Sling Adapter HK German manufactured MR762, MR308 & HK 417 Sling Adapter Backplate. This backplate has ambidextrous sling attachment points for both the left and right side of the firearm.HKP-16994$129.95 -
H&K HK P30/45/USP/USPC/P2000 Hammer Spring
H&K Heckler & Koch
$9.95Hammer Spring This is the stock hammer spring for many P30 models and is used for the heavy TGS and heavy and light LEM conversions on the USP, USPC, P30 & HK45 models. Compatible With: USP Full Size LEM & V4 USP Compact LEM &...HKP-01804$9.95 -
H&K HK USP Adjustable Rear Sight - Black
H&K Heckler & Koch
$119.95H&K HK USP Adjustable Rear Sight - Black HK German adjustable rear sight for use with HK USP full size pistols Compatible With: HK USP .45 HK USP .40 HK USP 9mm HK USP Tactical .45 HK USP Tactical .40 HK USP Tactical 9mm All HK USP full size...HKP-17361$119.95 -
H&K HK USPC/45/45C Magazine Follower - Black
H&K Heckler & Koch
$9.95HK USPC, 45, & 45C Magazine Follower - Black A great spare to have on hand as the follower is a wear and replacement part. Do not forget to order spare magazine springs while you are at it. New HK German manufacture. Compatible With: HK USPC ...HKP-02249$9.95 -
H&K P30, HK45, USPC Recoil Spring
H&K Heckler & Koch
$18.95New HK German Pistol Recoil Spring This part is ideal for repair or a replacement item as this is a high-wear item. This spring is the factory-correct flat-style compression spring. Compatible With: HK 45C, HK45C Tactical HK USPC .45, USPC Tactical HK...HKP-01673$18.95 -
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Front Sight
H&K Heckler & Koch
$14.95New HK German Factory USC/UMP Front Sight This is a common wear or breakage part. This part is easy to swap out by just knocking out the roll pin, replacing it, and then re-inserting the roll pin. This is a common wear or breakage part. Compatible with...HKP-00254$14.95 -
H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Sear
H&K Heckler & Koch
$19.95HK Complete Sear G36, UMP, USC & SL8 Genuine German Heckler & Koch part. Compatible With: HK UMP HK USC HK G36 HK SL8HKP-01850$19.95 -
H&K USC/UMP (.40 S&W) Extractor
H&K Heckler & Koch
$54.95HK German UMP Or USC .40 Extractor New HK German factory OEM part. This is a high wear and replacement item as the .40 cal cartridge has a high impulse that results in an increased occurrence of this extractor wearing out and breakage. A must-have...HKP-00264$54.95 -
HK G36, SL8 Fixed Sights & Optic Rail
USA
$199.95HK SL8, G36 Sight Rail With Front & Rear Fixed Sights US made SL8 & G36 Picatinny rail with fixed iron sights. Each rail requires 3 hardware sets to mount. Compatible With: HK SL8, HK Sl8-1 G36, G36K, G36CHKP-19717$199.95