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, 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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Magpul HK MP5, HK SP5, HK AP5 SL Hand Guard - Black
Magpul
$49.95The Magpul SL Hand Guard for the HK MP5 is a high-strength, injection-molded polymer handguard solution that provides the user with improved ergonomics and anti-slip texturing. It also includes M-LOK® compatible slots that allow mounting of modern...HKP-19309$49.95 -
Trijicon RMR Red Dot Sight Replacement Screw
USA
$1.95Replacement Screw For Trijicon RMR6-32 x 1/2" flat head socket cap screw with thread locker. Requires a 2mm allen head key.This replacement screw is to mount your Trijicon RMR optic to your #2 mounting plate.**Each screw is sold separately/individually...HKP-20035$1.95 -
AC-Unity 40 Round HK MP5 9mm Magazine - Black
AC-Unity Magazines and Parts
$24.95ADD QUANTITIES TO CART TO SEE BULK PRICING DISCOUNTS The AC-Unity 30 round MP5 magazine is a lightweight, impact resistant and reliable magazine for all 9mm HK MP5, SP5, MP5K, SP5K and clones. Constructed from German made polymer-resin/granulate that is...HKP-20156$24.95 -
H&K HK USP Series/45 Series .45 ACP 16 x 1 Thread Protector
H&K Heckler & Koch
$24.95New HK German 45 Caliber Tactical Thread Protector The cap fits all HK 45 cal full-size & compact barrels threaded 16mm X 1mm left-hand thread. A must-have item to protect your threaded barrels, exposed threads, and your HK pistol investment. The use...HKP-00297$24.95 -
X-Grip HK P30SK/P2000SK Magazine Sleeve - Black
X-Grip
$15.95VP9SK, P30SK & P2000SK - USPC/P2000 Mag Adapter X-Grip The XGRIP HK, VP9SK, P30SK & P2000SK are patent pending OEM factory accessories for the HK, V P30SK, and P2000SK that enhance the versatility, look, and feel of the gun. The XGRIP...HKP-00910$15.95 -
GSG 22 Round GSG-5 .22LR Magazine Spring
GSG German Sports Guns
$4.95Fits All GSG5 Rifles Or Pistols 22 round mag spring. A must have replacement spare part as the mags are used or stored a backup mag spring is must have. Also, perfect for those that have weak feeding Promag GSG mags as these mag springs will help...HKP-14548$4.95 -
H&K No Compromise Decal
H&K Heckler & Koch
$1.95Size: 4 in. CircleWeatherproofShow your support for the HK 416 weapon System. HK shows no compromise as the worlds finest firearms manufacture the world over!HKP-17157$1.95 -
Overwatch Precision 32 Round MP5 Variants 9mm Magazine
Overwatch Precision
$29.95The Overwatch Precision Polymer magazine for MP5, MP5K variants is a 32-round 9mm polymer mag for HK MP5, SP5K, MP5K, SP5K, and factory spec HK MP5,MP5K style clones. Its unique and custom feed lip and follower geometry allows for reliable feeding and...HKP-20102$29.95 -
H&K 91/G3 (7.62x51 / .308) Cocking Handle - Black Rubberized - Surplus
H&K Heckler & Koch
$9.95HK German HK G3 & HK 91 Rubberized Cocking Handle- BlackUsed German Military Surplus From G3 Military Rifles.Each comes complete, black in color. Date coded. Made by HK for the German military.Fits all: HK 91 HK G3 PTR-91 HK 51 HK PSG-1 HK MSG-90 HK...HKP-17083$9.95 -
HKP HK P30/P30S Gen 2 Rail Mount Compensator - Black
HKP HK Parts
$179.95HK P30 - Rail Mount Compensator - Gen 2 Crafted from aircraft-grade billet aluminum and finished in durable Cerakote. It has a sleek design that flows with the lines of the Koch P30 for a seamless addition. It has 5 sets of ports to significantly reduce...HKP-19926$179.95 -
H&K HK USPC/P2000 9mm Magazine Flat Floor Plate
H&K Heckler & Koch
$19.95H&K HK USPC/P2000 9mm Magazine Flat Floor Plate USPC 9mm 13 round flat floor plate for the 9mm UPSC and P2000 magazine. This is a Heckler and Koch genuine part. Perfect for concealed carry or for a lower profile HK USP Compact 9mm 13 Round...HKP-01122$19.95 -
H&K Sling Loop For Front Sight Tower - Used
H&K Heckler & Koch
$4.95HK German sling loop, eyebolt or triple frame retainer pin for front sight tower - UsedThis HK OEM item is used and pulled from de-milled HK firearms. This is a must have item for all of your re-barrel jobs of for when you need to mount a sling loop to...HKP-17058$4.95 -
Lazy Wolf VP Series F3 Full Flat Face Trigger - Black
Lazy Wolf
$129.95In a collaboration with Lazy Wolf Guns, HK Parts is offering the finest aftermarket triggers for your HK VP9 & VP40 handguns. The drop in VP9 series trigger is the finest trigger ever developed after more than a year of testing and evaluation...HKP-17988$129.95 -
Out Of Stock
MP5, 94, HK53, 51 M-LOK Handguard
HKP HK Parts
$108.95HK MP5, 94, HK53, 51 Low Profile Forearm M-LOK ON SALE WHILE SUPPLIES LAST. LIMITED OFFER!The MLOK tactical hand guard easily installs on your firearm with minimal effort and locks up solid. No fitting required. Designed from the ground up by...HKP-17148$108.95 -
Walther 20 Round HK 416/Colt M4 .22LR Magazine - Gray
Walther
$24.95HK, Umarex, Walther, HK416 .22LR Magazine - 20 Round Magazine Brand New Walther German manufactured 20 round .22 cal magazine. Compatible With: HK 416 .22 Colt M4 .22 HK G36 .22 Beretta ARX 160 .22 Hammerli Tac .22 This is the factory OEM magazine for...HKP-14554$24.95 -
H&K 9mm 13.5 X 1 Thread Protector
H&K Heckler & Koch
$24.95H&K 9mm 13.5 X 1 Thread Protector This German HK-manufactured 9mm tactical threaded barrel protector fits all HK 9mm threaded barrels. 13.5 x 1 metric left-hand twist. Fits the following barrels threaded 13.5 X 1 metric 9mm barrels: VP9...HKP-00919$24.95 -
Out Of Stock
HKP MP5, MP5K Cocking Handle - Extended
HKP HK Parts
$39.95HK MP5, MP5K Contoured Cocking Handle - ExtendedEnhanced extended cocking handle for the MP5 style of firearms. Each cocking handle offers twice the grabbing area for charging the firearm and each is made 100% from solid steel billet. Each item also...HKP-17149$39.95 -
Holex Feeler Gauge Set - 20 Piece - German
HKP HK Parts
$14.95The perfect companion tool for all HK roller lock firearm owners. Each tool includes 20 feeler gauges from .05mm-1.0mm in .05 increments. To help users and shooters maintain the factory recommended bolt gap. This is the exact same tool set used in the...HKP-17212$14.95 -
Lazy Wolf HK Reduced Power Hammer Spring - 10 lb.
Lazy Wolf
$9.95An exciting new offering as a joint collaboration from the widely renowned pistol smith Lazy Wolf Guns & HK Parts! This custom spring was designed exclusively by master trigger smith Rick Holm at LWG where his custom spring line is used in all of his...HKP-18132$9.95 -
H&K HK MP5K SEF Navy Style Push Pin Trigger Housing - Used
H&K Heckler & Koch
$74.95HK German SEF MP5K "Navy Style" Push Pin SEF Trigger Housing - USEDHK German factory date coded SEF grip frame that has been cut to MP5K factory German specs. This style of housing is for push pin firearms that do not require a clipped and pinned...HKP-19997$74.95 -
H&K Roller For Bolt Head 8.00mm - Standard
H&K Heckler & Koch
$12.95H&K Roller For Bolt Head 8.00mm - Standard The 8mm roller is the proper roller size for the standard "zero" function. The correct 8mm roller is essential for proper head spacing and bolt gap. New HK German, not surplus or used goods, that are worn...HKP-00506$12.95 -
Out Of Stock
HKP HK VP/P30/45 RMR Pistol Mount - Black
HKP HK Parts
$49.95Trijicon RMR Pistol Mount RMR mounting plate to allow the use of the following:Trijicon RMR & SRO modelsHolosun HE407C / HE407C X2 / HE507C / HE507C X2 / HS407C / HS407C X2 / HS507C / HS507C X2, 508T, Swampfox Kingslayer / Liberty /...HKP-18503$49.95 -
SB Tactical HK MP5, HK SP5 Retractable Pistol Stabilizing Brace - Black
SB Tactical
$329.95The HK MP5, SP5 pistol stabilizing brace is 3-position fully adjustable pistol brace and is comprised of a billeted 6061 alloy hard-coat anodized aluminum adapter, steel receiver forks, and an integral QD sling socket. This pistol brace provides you...HKP-19161$329.95 -
HKP Chamber Face Brush For All Barrels
HKP HK Parts
$25.99HKP Chamber Face Brush For All Barrels This brush was made to clean the hard-to-reach and hard-to-clean barrel face. This is a must-have addition for cleaning your HK firearm. This item will fit all standard 8-32 US thread cleaning rods. Compatible...HKP-00140$25.99 -
HKP MP5 & HK94 Firing Pin Spring - Enhanced
HKP HK Parts
$4.95HK MP5, MP5K Enhanced firing pin fits all of the MP5 9mm & 40/10 Variants including MP5,94 & MP5K, SP89 clones. The "Enhanced" firing pin spring was analyzed & engineered from scratch with the latest in performance spring technology and an...HKP-02321$4.95 -
H&K HK USP/USPC Magazine Spring
H&K Heckler & Koch
$8.95H&K HK USP/USPC Magazine Spring HK recommends that for optimum performance, one should change out the magazine springs during regular maintenance intervals or when keeping the pistol magazines loaded for long periods. Compatible with: HK USP 9mm...HKP-01425$8.95 -
KCI 20 Round HK MP5, HK MP5K 9mm Magazine - Black
KCI
$39.9920 Round Magazine - KCI USA - Gen 2 - H&K MP5, MP5KMade in South Korea and imported by KCI USA. Curved for more reliable feeding, these 20-rounds MP5 magazines have been endurance tested by KCI and carry a Limited Lifetime Warranty. A perfect low...HKP-19418$39.99 -
Out Of Stock
HKP MP5 SD 9mm Cocking Tube
HKP HK Parts
$129.95MP5 SD Cocking Tube - US MadeHK German MP5 SD spec cocking tube for use on MP5 SD style builds or custom SD builds. These are the finest MP5 SD cocking tube ever offered, Each unit is made from the original factory HK prints & tooling to the perfect...HKP-15700$129.95 -
H&K, Walther 10 Round HK MP5 .22LR Magazine - Black
$39.95HK MP5 22 - 10 Round magazine Brand New Walther/HK German manufactured for the HK MP5-A5 & MP5-SD .22 rifle & Pistols. Each magazine offers a 10 round magazine capacity & fits all HK, Walther, Umarex MP5 A5 & MP5 SD .22 rifles. A...HKP-19923$39.95 -
HKP HK VP9 Gen 2 V1 Rail Mount Compensator - Black
HKP HK Parts
$169.95Features & Specs: Length - 4 1/4 inches Height - 2 1/2 inches Weight - 5 oz. Torque: 3nM / 26 inch-lbs Not to be used with a threaded barrel ***DOES NOT WORK WITH THE VP9 MATCH*** DISCLAIMER: Please make sure that the rail is set and locked into...HKP-19000$169.95 -
HKP HK VP9, HK VP40 Gen 2 Enhanced Magazine Release
HKP HK Parts
$49.95Enhanced Magazine Release - Alloy - HK VP Series - Gen 2 - New & Improved New HK Parts Enhanced and Over-sized Magazine Release. The over-sized magazine release increases the overall surface area and makes it possible to release the magazine...HKP-21098-M$49.95 -
H&K UMP (.40 S&W/.45 ACP/9mm) Folding Stock
H&K Heckler & Koch
$138.95HK German UMP Folding Buttstock Brand new German HK folding stock. This is a required part for the USC-UMP Conversion using the (stock block B). All UMP folding stocks come with an HK date code. Compatible with: HK UMP .45 HK UMP .40 HK UMP 9mm HK...HKP-00252$138.95 -
MI MP5 M-LOK Forearm
MI Midwest Industries
$124.95MI MP5 M-LOK Forearm Compatible professional grade one piece design Simple installation, include all tools Mil-spec top rail. Features 15 full and 5 half M-LOK slots. Features two anti-rotation QD sling swivel sockets. Constructed of 6061 aluminum, hard...HKP-18472$124.95 -
H&K GSG-5 Push Pin Upgrade Kit
H&K Heckler & Koch
$29.95H&K GSG-5 Push Pin Upgrade Kit This item is a set of genuine HK German factory push pins that will upgrade all your GSG-5 rifles or pistols to quick take-down push pins. This is one of the most common and desirable upgrades available for your GSG5...HKP-01064$29.95 -
Out Of Stock
H&K HK USP Full Size 9mm/.40 Extended Floor Plate - Black
H&K Heckler & Koch
$0.00Each new HK German extended floor plate provides additional room for your pinky on the full-size USP 9mm or .40 pistol. A super popular upgrade and a must have item for those that have average to larger hands. A quick easy swap for your standard...HKP-02478$0.00 -
H&K Sling Hook
H&K Heckler & Koch
$4.95Great For HK sling projects and for spares. Used in great shape and the real deal. This is the sling hook that all others look up to. Hard to find. 1" sling hook for slings webbing, etc. Used in good condition and pulled from factory HK slings. Made in...HKP-16315$4.95 -
H&K 18 Round HK USP 9mm Jet Funnel Magazine - Black
H&K Heckler & Koch
$89.99New Latest Generation & Style Black Steel Lined Polymer Over Steel HK German - USP 9mm 18 Round Magazine New style all black steel reinforced Jet Funnel 18 round USP 9mm magazine. Each magazine will fit all HK USP 9mm full size pistols as well as the...HKP-14549$89.99 -
H&K 17 Round HK VP9SK/P30SK 9mm Magazine - Black
H&K Heckler & Koch
$49.95New Factory HK 17 Round Magazine for the VP9SK & P30SK. HK's magazine is made to their specifications and tolerances using high quality materials that provide perfect fit, durability and reliability.HKP-20601$49.95 -
H&K HK P9/P9S Recoil Buffer
HKP HK Parts
$19.95HK P9S Recoil Buffer Fits All 9mm & 45 P9 & P9S Models This is a must-have replacement item as the buffer will degrade and fall apart with use and age. Replacing the P9 buffer is the most common wear and replacement part on the P9 series of...HKP-01449$19.95 -
On Sale
HKP HK VP9L Rail Mount Compensator
HKP HK Parts
Now: $149.95Was: $169.95Specifications: Length: 4 1/4 inches Height: 2 1/2 inches Weight: 5 oz. Torque: 3nM / 26 inch-lbs Crafted from aircraft-grade billet aluminum and finished in durable Cerakote. Not to be used with HK VP9 threaded barrel DISCLAIMER: Please make sure that...HKP-21074-MNow: $149.95Was: $169.95