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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Choate HK 91/G3 (7.62x51/.308) Complete Tactical Folding Stock
Choate
$179.95HK91, G3, & PTR Folding Stock With Adjustable Length Of Pull - Tactical Stock This stock is adjustable by two inches when using the innovative spacer system. It comes fully assembled and ready to drop on your favorite HK. The adjustable length system...HKP-01951$179.95 -
Choate MP5K/SP89/SP5K 9mm Tactical Folding Stock
Choate
$229.95HK SP5K Folding Tactical Stock Compatible With: MP5K D54K SP5K SP89 Zenith Z-5P/Z-5K & in-spec clonesHKP-00781$229.95 -
Sale
F5 MFG 50 Round MP5 9mm Drum Magazine
F5 MFG
Now: $164.95Was: $199.00F5 MFG 50 Round MP5 9mm Drum Magazine HK MP5 & MP5K 9mm - 50 Round Drum New 3rd generation redesigned version. Now offered at an even lower price! You asked for it and the long-awaited and highly anticipated MP5 50 Round Drum Magazine designed for...HKP-16537Now: $164.95Was: $199.00 -
H&K 91/G3 (7.62x51/.308) Slimline Forearm - OD Green - Used
H&K Heckler & Koch
$14.95H&K 91/G3 (7.62x51/.308) Slimline Forearm - OD Green - Used This is a used German Military surplus OD green Slimline Forearm with a heat shield. Each forearm is in good condition and can be restored with a bit of TLC. The conditions range from good...HKP-16265$14.95 -
H&K RAL 8000 Vertical Foregrip
H&K Heckler & Koch
$64.95H&K RAL 8000 Vertical Foregrip: Each Vertical Grip features the factory HK markings & HK's unique locking system. Rotating the knob at the base of the grip to engage/disengage the Picatinny locking piece allows the user to install/remove...HKP-17689$64.95 -
HKP HK P30L Rail Mount Compensator for Threaded Barrel
HKP HK Parts
$169.95HKP HK P30L Rail Mount Compensator for Threaded Barrel Specifications: Caliber: HK P30L 9mm (recommended by the manufacturer to use 127+ Grain Ammunition), and HK P30L .40 cal (180+ Grain Ammunition recommended) Crafted from aircraft-grade billet...HKP-19237$169.95 -
Sale
Magpul PMAG 20 Round AR-15 5.56/.223 Magazine
Magpul
Now: $9.99Was: $12.95Mapul PMAG 5.56/.223- 20 Round - M3 This magazine is the latest and greatest M3 model NON-windowed 20 round PMAG (Polymer Magazine) is a lightweight 5.56 NATO, M-16 compatible magazine. It features a pop-off storage/dust cover that alleviates pressure...HKP-16475Now: $9.99Was: $12.95 -
MM HK 33/91/93/G3 (5.56/.223) & (7.62x51/.308) Clubfoot With Heavy Rubber Buttpad
Michaels Machines
$229.95US-Made Clubfoot (21E/23E Style) Central Buttstock Section With US Heavy Rubber Buttpad Fits all HK 91/G3/21/23 and HK93/33/53 backplates and buffers. Just add your buffer and backplate and you are good to go. Great replacement or upgrade for your HK...HKP-01144$229.95 -
SB Tactical SBA4 Pistol Stabilizing Brace
SB Tactical
$99.99SB Tactical SBA4 Pistol Stabilizing Brace Designed for all platforms capable of accepting a mil-spec carbine receiver extension. The SBA4 is 5-position adjustable and features an integral, ambidextrous QD sling socket. Compatible With: HK MR556...HKP-19927$99.99 -
AIM Sports 4x Prismatic Scope w/ Riser
AIM
$109.954X32 TRI ILLUMINATED SCOPE W/FIBER OPTIC SIGHT ARROW PLX RETICLE 4 X 32 Prismatic Scope With Illuminated Reticle. The optic is 100% shock resistant, recoil and fog proof, as well as entirely nitrogen filled. Features tri-illumination (red, blue &...HKP-19534$109.95 -
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 10 Round HK VP9/VP40/USP Series/P Series Magazine Spring
H&K Heckler & Koch
$7.95New German HK Magazine Spring For 10 Round Magazines A must-have part as magazine springs are high wear and a common replacement item. Compatible With: HK USP 9mm HK USP 40 S&W HK USP Compact 9mm HK USP Compact 40 S&W HK USP Compact 357 SIG HK...HKP-01428$7.95 -
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 HK P Series Cocking Piece LEM
H&K Heckler & Koch
$69.95HK P Series Cocking Piece LEM Compatible With: HK P30 HK P30L HK P30SK HK P2000 HK P2000SKHKP-01769$69.95 -
H&K HK P2000/P2000SK/45/45C Slim Slide Release Lever Set
H&K Heckler & Koch
$89.95HK P2000, P2000SK, 45 & 45C Slim Slide Release Lever Set This set provides a lower profile slide release for those who conceal carry or ride the slide and prefer a lower profile slide release. Factory Standard Slide Release Lever: Left...HKP-02388$89.95 -
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 -
HK 416, MR556 & MR762 Battle Grip With Storage - Tan
$129.95H&K 416/417 & MR556/762 Battle Grip With Storage - RAL 8000 New HK German V7 factory battle grip with storage compartment in the bottom of the grip. Superior fit & feel to any other grip on the market. HK has hit a home run with their...HKP-17659$129.95 -
Kaw Valley Precision Mach 3 Modular Linear Comp Body
Kaw Valley Precision
$49.95Kaw Valley Precision Mach 3 Modular Linear Comp Body The KVP MACH Modular Linear Comp is a Patent Pending linear compensator system that is completely user configurable! If you've struggled to find a comp the correct length for the perfect "tuck,"...HKP-19984$49.95 -
MKE HK G3 Retractable Buttstock
MKE
$359.99MKE HK G3 Retractable Buttstock The Century Arms MKE Retractable G3 Buttstock is an easy-to-install replacement stock system for HK G3-style firearms. The simple lock/release system is easy to operate, allowing shooters to adjust the stock length...HKP-21182$359.99 -
Evolution Gun Works HK USP Compact Trijicon RMR-SRO, Holosun 407C-507C Mount
Evolution Gun Works
$49.95Evolution Gun Works HK USP Compact Trijicon RMR-SRO, Holosun 407C-507C Mount Includes: Mounting hardware Features: Material: 7075 aluminum Coating: matte black hardcoat Overall length: 1.780" Overall width: 1.1" Mounting hardware: (2) 6-32 flat...HKP-20043$49.95 -
H&K 30 Round HK MP5 9mm Magazine - TiN Coated
H&K Heckler & Koch
$149.95H&K 30 Round HK MP5 9mm Magazine - TiN Coated Get your hands on some TiN coated factory Heckler & Koch magazines. Each magazine starts out as a fresh 9mm, 30 round mag before being professionally dsiassembled, TiN coated, and reassembled...HKP-21643$149.95 -
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 -
HKP HK VP9/VP9L Optics Plate #7 Holosun 509T Optic Mount
HKP HK Parts
$49.95HK VP9, VP9L Optics Ready #7 - Holosun 509T - Optic Mount - Steel The finest all steel mounting solution for your HK VP9, VP9L OR model.New solid billet machined steel optics plate. Each plate is CNC machined from a solid billet of ordnance grade steel,...HKP-19972$49.95 -
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 -
PTR HK 93/53/33 & G3/91 (5.56/.223) & (7.62x51/.308) Muzzle Brake - Threaded 15x1 RH
PTR
$25.95PTR HK 93/53/33 & G3/91 (5.56/.223) & (7.62x51/.308) Muzzle Brake - Threaded 15x1 RH Correct HK threading 15x1 right hand with HK style retaining spring to latch on the HK splined barrel. Made in the US and counts as one US 922r compliant part...HKP-02148$25.95 -
RCM HK USP .45 ACP Tactical Barrel - Threaded .578x28 RH
RCM
$289.95RCM 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$289.95 -
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 91/G3 (7.62x51/.308) Cocking Handle - All Metal - Surplus
H&K Heckler & Koch
$8.49HK German HK G3 & HK 91 Older Style All Metal Cocking Handle Used German Military Surplus. No longer made or offered by HK. A genuine Heckler and Koch part. All steel cocking handle. Rare and hard to find. Compatible With: HK 91 HK G3 PTR-91 HK...HKP-16766$8.49 -
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 -
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 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 -
HKP SEF Short Axle Selector Lever For Metal Trigger Housings - Extended
HKP HK Parts
$69.95HKP SEF Short Axle Selector Lever For Metal Trigger Housings - Extended HK steel SEF Extended selector lever. Fits all metal HK grip frames. Please note that the polymer (plastic) style SEF housing uses the long axle SEF selector lever and not this...HKP-19026$69.95 -
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 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 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