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
UTG Picatinny Folding Vertical Grip With Finger Grooves-5 Position
UTG
Now: $9.95Was: $19.95UTG Picatinny Folding Vertical Grip With Finger Grooves-5 Position This UTG Model 4 Vertical Foregrip fits Picatinny. It is a 5-position foldable foregrip with ergonomic finger grooves for a comfortable grip. The practical side slide allows for...HKP-15373Now: $9.95Was: $19.95 -
H&K 10 Round HK USP/Mark 23 .45 ACP, P30 .40 S&W Magazine Spring
H&K Heckler & Koch
$8.9510 Round HK USP/Mark 23 .45 ACP, P30 .40 S&W Magazine Spring A must-have spare part, as magazine springs are prone to wear and tear. Compatible With: HK USP .45 10 round HK USP .45 Tactical 10 round HK Mark 23 10 round HK 9mm & 40 cal P30...HKP-01675$8.95 -
H&K HK 416 10.5" Rear Diopter Sight Assembly
H&K Heckler & Koch
$239.95HK German 416 10.5 Rear Diopter Sight Assembly This is the proper rear sight for use on all HK 416 10.5 uppers and firearms. This is also a great sight alternative for those who need a lower sight setup for the AR, XCR, etc. To be used in conjunction...HKP-01109$239.95 -
H&K MP5 & MP5K 9mm Magazine Loader
H&K Heckler & Koch
$109.95German Magazine Loader For MP5 & MP5K - 9mm Magazines New HK German manufacture. Get years of use out of this steel loader while saving your thumbs. Compatible With: Curved 40, 30, 20, 15 & 10 round 9mm magazinesHKP-17013$109.95 -
HKP HK Mark 23 .45 ACP Micro Comp - Threaded 16x1 RH
HKP HK Parts
$29.95HKP HK Mark 23 .45 ACP Micro Comp - Threaded 16x1 RH The HK Parts Micro Comp & Thread Protector is a lightweight, fully functional accessory that serves as both a compensator and thread protector. It attaches easily to any factory spec 16x1 RH Mark...HKP-21319$29.95 -
HKP HK VP9, HK VP40 Enhanced Magazine Release
HKP HK Parts
$49.95Enhanced Magazine Release - Alloy - HK VP Series The oversized magazine release increases the overall surface area and makes it possible to release the magazine without changing the position of your grip. Made in the USA from 6061 billeted aluminum...HKP-21099-M$49.95 -
RCM HK USP .45 ACP Tactical Barrel - Threaded .578x28 RH
RCM
$250.00RCM HK USP .45 ACP Tactical Barrel - Threaded .578x28 RH HK USP .45 & USP .45 Tactical threaded barrel compatible with various flash hiders and sound suppressors. Unlike the factory USP .45 Tactical barrel, which uses a less common metric 16x1 left...HKP-17447$250.00 -
H&K 91/G3 (7.62x51/.308) Complete F/A Lower (SEF) - Black
H&K Heckler & Koch
$369.95German G3 Surplus Lower Complete - Black Grip HK G3 SEF Steel Lower Complete. Each lower includes full auto trigger pack complete, selector lever, green grip, metal SEF grip frame, grip screw with screw washer. All of these parts are installed and ready...HKP-17653$369.95 -
H&K HK G36 to AR-15 Mag Conversion Mag Well - Black
H&K Heckler & Koch
$249.95HK G36 To AR15, M4 Magazine Conversion Simply swap the magazine well from the G36 to this offering and you can then run AR15/M4 style magazine in your G36 or SL8/G36 conversion. Allows use of all AR15-M4 magazines in the G36 with this magwell adapter...HKP-17605$249.95 -
H&K HK G36C Rear Stock With Cheek Rest - Black
H&K Heckler & Koch
$199.95HK G36C Rear Stock With Cheek Piece Installed - German Genuine German Heckler & Koch G36 stock. The G36C stock is a full inch shorter than a standard G36 stock. This is an ideal stock for those wearing body armor, for those who are doing the SL8...HKP-00278$199.95 -
Out Of Stock
HKP Semi Auto Shelf, Hanger Block For Receiver
HKP HK Parts
$13.95HK Semi Auto Shelf Weldment, Hanger Block Weldment HK Semi Auto Shelf, Hanger Block to HK's factory specifications for c/p trigger housings. Weld on shelf that is the needed receiver block that welds to the rearward portion of the magwell to allow the...HKP-17572$13.95 -
Magpul 9mm Subgun Mag Assist - 3 Pack
Magpul
$9.95ORIGINAL MAGPUL® 9MM SUBGUN - 3 PACK When installed on the base of a submachine-gun magazine, the original Magpul provides improved speed and controllability during high stress, tactical magazine changes. Durable synthetic rubber loop with recessed...HKP-17310$9.95 -
Out Of Stock
RCM HK USPC 9mm Tactical Barrel - Threaded 1/2x28 RH
RCM
$225.00RCM HK USPC 9mm Tactical Barrel - Threaded 1/2x28 RH Each USPC 9mm tactical barrel is crafted from ordnance grade steel, heat-treated, and finished with a durable nitride coating. It is the finest threaded replacement barrel for the HK USPC 9mm...HKP-01705$225.00 -
Comp-Tac HK VP9, VP9L & Match International Holster - Right Hand
Comp-Tac
$79.95Comp-Tac HK VP9, VP9L & Match International Holster - Right Hand One holster to fit your entire VP9 button collection, including your VP9 Match. Comp-Tac has worked with HK Parts to develop a flexible holster to fit your needs- whether you have the...HKP-20200$79.95 -
H&K 10 Round HK MR762/417 7.62/.308 Magazine - RAL 8K
H&K Heckler & Koch
$59.00HK MR762, HK417 10 Round Magazine, RAL 8000 Genuine HK German 10 round MR762 magazine. Factory fresh & hard to find. Compatible With: MR 762 HK 417 HK G28HKP-18593$59.00 -
H&K 12 Round HK P2000/USPC .40 S&W Floor Plate w/ Finger Rest - Black
H&K Heckler & Koch
$24.9512 Round HK P2000/USPC .40 S&W Floor Plate w/ Finger Rest - Black This item is most commonly used as a replacement item for the HK USPC .40, P2000 12-round floor plate with finger rest but will fit the below HK pistol magazines as well...HKP-01682$24.95 -
Out Of Stock
H&K 33/91/93/G3 (5.56/.223) & (7.62x51/.308) Triple Frame Front Sight Tower
H&K Heckler & Koch
$14.95HK German Front Sight Tower Triple Frame- Used Surplus Used G3 triple frame in Good shape. Just needs a good refinishing. Comes complete with sight blade and roll pin installed. Used surplus pulled from HK German de-milled G3's Comaptible With: HK 91 HK...HKP-16734$14.95 -
H&K German (5.56/.223) & (7.62x51/.308) Hammer Spring
H&K Heckler & Koch
$9.95New HK German Rifle Hammer Spring For All.308/.223 Semi & Full Auto Trigger Packs This is a must-have spare replacement part for your HK firearm. The rifle 308/556 hammer spring is also a popular upgrade to replace the hammer spring in 9mm and clones...HKP-00194$9.95 -
Out Of Stock
H&K HK MR556/416 Extended 11" Quad Rail - Black
H&K Heckler & Koch
$419.99HK MR556/416 Extended 11" Quad Rail - Black This drop-in unit offers two full inches in extra length, not the standard 9" rail that comes with the HK 416/MR556, but an extended 11" rail that allows for a longer sight radius and more rail space...HKP-01960$419.99 -
H&K HK P30, HK VP 9mm / 40S&W Magazine Loader - Black
H&K Heckler & Koch
$19.95H&K HK P30, HK VP 9mm / 40S&W Magazine Loader - Black Compatible With: HK VP9, VP40, VP9SK, VP40SK HK P30, P30S, P30L, P30SK 9mm HK P30, P30S, P30L, P30SK .40 Cal HK USP Compact 9mm, .40 cal & .357 Sig models HK P2000 9mm, 40 cal & ...HKP-01164$19.95 -
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Side or Bottom Rail
H&K Heckler & Koch
$67.95HK Factory German USC/UMP Side Or Bottom Rail W/ Screws Up to three sides can be used - two for the sides and one for the bottom. Best quality and price available anywhere. Made from hard coat anodized aluminum. Please Note: White lettering on rails may...HKP-00597$67.95 -
H&K Universal Gun Cleaning Wick Set - 8 Piece Set
H&K Heckler & Koch
$1.95Original German Army Issue HK91/G3/PTR Cleaning Kit Wick - Set of 8 Originally issued for the G3,91 & MG3 firearms but will work on pretty much any and all rifles & pistols. Each set comes with 8 BRAND NEW German manufactured cleaning wicks. Each...HKP-17646$1.95 -
HK SP89, SP5K, MP5K - Forearm
$49.95HK SP89, SP5K, MP5K - Forearm Compatible With: HK MP5K HK SP89 HK SP5K MP5 Reverse Stretch Style Builds Custom MP5K/ SP89 builds Specifications: Made in the USA 922r Compliant Brand: HK Parts *Can be modified to install on MP5K-N builds with 3...HKP-17397$49.95 -
HKP 17 Round HK VP9/P30 Extended Magazine Spring For +5 Extensions
HKP HK Parts
$8.95Extended Magazine Spring - HK 17 Round Magazine For Use With The +4 or+5 Extension - HK VP9, HK P30 This Extended Magazine spring fits VP9 and P30 9mm 17 round magazines with the HK Parts +4 and +5 Extension Base Plates. A must-have item when using...HKP-19297$8.95 -
HKP 9mm Flash Hider - 3-Lug
HKP HK Parts
$99.95HKP 9mm Flash Hider - 3-Lug Easily attaches to the end of any factory specification 9mm 3 lugged barrel. This flash hider does not require the of threads as it attached to the 3 lug tip. Also a great addition for any of 3 lug barrels found on in spec...HKP-20170$99.95 -
HKP HK 91 Polymer To Metal Trigger Group Conversion Kit
HKP HK Parts
$225.95HK 91/PTR 91 Polymer To Metal Trigger Group Conversion Kit. This is everything you will need to convert the lower trigger group on your HK 91 from polymer to metal housing with contoured grip. Just use your existing trigger pack to complete the...HKP-17362$225.95 -
HKP Roller +7 - New - 8.07mm
HKP HK Parts
$8.99Roller +7 - New - 8.07mm HK Parts Standard (8.07 mm) locking roller, The proper roller size is essential for proper bolt gap. US Manufacture. Price is per roller.**You need to order two for a complete set (pair) for bolt head.**HKP-19442$8.99 -
JMAC Customs Metric Face Mount Shims
JMAC Customs
$9.95JMac Customs Metric Face Mount Shims Custom shims for JMac muzzle devices. This kit includes varying thickness shims to "time" your muzzle device to your desired orientation. These shims are specifically made for JMac 14F, 15F, 24F and 26F muzzle devices...HKP-21446$9.95 -
Trijicon HK USP HD Night Sight Set - Orange
Trijicon
$155.99Trijicon HD HK106O USP Full Size Night Sight Set- Orange Front Outline The HD Night Sights were created to address the needs of tactical shooters. The three-dot green tritium night sight set front sight features a taller blade and an aiming point ringed...HKP-14533$155.99 -
H&K G3 Crush Washer For Buffer Screw
H&K Heckler & Koch
$0.95HK G3 Crush Washer For Buffer ScrewHKP-16984$0.95 -
H&K HK G3, HK 91, PTR Rear Sight Assembly
H&K Heckler & Koch
$39.95HK German G3, 91, PTR Rear Sight Assembly Complete - New HK - Hand Windage Adjustment Knob HK German factory rear sight assembly with all hardware included. We offer the finest new HK sights at the BEST price in the country. Each set comes complete with...HKP-19372$39.95 -
H&K HK USP/Mark 23 .45 ACP Magazine Follower
H&K Heckler & Koch
$9.95USP .45 & Mark 23 SOCOM Magazine Follower A great spare to have on hand as this is a wear and replacement item. Compatible With: HK USP 45 ACP 10 Round HK USP 45 ACP 12 Round HK USP .45 Tactical, Elite, Expert HK Mark 23 10 Round HK Mark 23 12...HKP-01586$9.95 -
H&K MP5 & MP5K 9mm Magazine Locking Plate
H&K Heckler & Koch
$16.95HK MP5 & MP5K Magazine Locking Plate - German New steel HK German manufactured MP5, MP5K curved magazine locking plate for the magazine. Compatible With: 40-round magazine 9mm 30-round magazine 9mm 20-round magazine 9mm 15-round magazine...HKP-01490$16.95 -
H&K MP5SD 9mm Barrel Port Brush
H&K Heckler & Koch
$194.95HK Factory MP5SD Barrel Port Brush A much-needed barrel brush to keep the barrel clean on all factory HK MP5SD'S. Fits HK factory SD barrels or in-spec clone barrels such as RCM US-made barrels. Compatible With: MP5SD models Grab a...HKP-00137$194.95 -
MFI GSG-5/GSG-522/GSG-5PK Scope Mount
MFI
$109.95MFI HK Low Profile Scope Mount The MFI low profile scope mount was designed exclusively for the GSG-5, Umarex, and HK MP5 .22 models. The MFI mount takes less than 3 minutes to mount on your rifles or pistols. Compatible With: GSG-5,...HKP-01545$109.95 -
RCM HK VP9L 9mm Tactical Barrel - Threaded 1/2x28 RH
RCM
$262.50RCM HK VP9L 9mm Tactical Barrel - Threaded 1/2x28 RH Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded replacement barrel for the HK VP9L 9mm pistol,...HKP-19203$262.50 -
B&T MP5K & MP5 - Folding Stock Section Only
B&T Brugger & Thomet
$139.95B&T MP5K & MP5 - Folding Stock Section Only Ideal for those moving from the SB Tactical SBT5 or SBT5K side folding brace to NFA/SBR status as these braces already include the B&T side-folding stock adapter backplate. Specifications: Requires...HKP-18246$139.95 -
ETS 40 Round MP5 9mm Magazine-Translucent
Elite Tactical Systems
$44.99HK MP5 9mm 40 Round Translucent Magazine Features: Works with ETSCAM-RIFLE speed loader Extremely reliable feeding - Even with hollow points Far lighter than steel magazines Fits standard MP5 mag pouches and couplers Extended 40 round...HKP-18738$44.99 -
H&K 91/G3 (7.62x51/.308) Complete F/A Trigger Pack (SEF) - Used
H&K Heckler & Koch
$299.95H&K G3/91 (7.62x51/.308) SEF Complete F/A Trigger Pack - USED A Heckler & Koch genuine part. The best price anywhere for a complete surplus German trigger pack. This offering is a full auto HK SEF .308 trigger pack complete with all internals...HKP-00522$299.95 -
H&K German Roller +2 - Used - 8.02mm
H&K Heckler & Koch
$7.95H&K German Roller +2 - Used - 8.02mm Used HK standard (8.02 mm) locking roller. The proper roller size is essential for proper bolt gap. HK German Manufacture. Price is per roller. **You need to order two for a complete set (pair) for bolt head.**HKP-19366$7.95