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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H&K .40 S&W Tactical Thread Protector - Threaded 14.5x1 LH
H&K Heckler & Koch
$24.95H&K .40 S&W Tactical Thread Protector - Threaded 14.5x1 LH Fits all HK barrels that are threaded 14.5x1 LH. This is the correct thread protector for all the HK .40 S&W metric threaded barrels. This will also fit non HK related barrels as well...HKP-00298$24.95 -
H&K HK USP 9mm/40 S&W Recoil Spring
H&K Heckler & Koch
$9.95HK USP 9mm/40 S&W Recoil Spring It is the factory 12-12.5 lb. recoil spring. Fits the 9mm or .40 USP pistols and can also be used as a reduced-weight spring for the HK USP .45 pistol. A great replacement item that should be...HKP-02067$9.95 -
H&K HK USP Full Size 9mm/.40 S&W Floor Plate
H&K Heckler & Koch
$8.95HK USP Full Size 9mm/.40 S&W Floor Plate Compatible With: HK USP 9mm 15-Round Magazine HK USP 40 S&W 13-Round MagazineHKP-01438$8.95 -
H&K MP5 A4/A5 & MP5SD Operators Red Book
H&K Heckler & Koch
$18.95New HK German MP5A4, MP5A5, & MP5SD Operators Red BookHKP-02227$18.95 -
HKP Hoodie - Black
HKP HK Parts
$39.95HKP Hoodie - Black Get your hands on some of our premium new apparel! Featuring our sleek new logo printed over soft cotton, this hoodie is certain to catch an eye at the range! Cotton High fidelity DTG printing Official HKP merchandise Note: These...HKP-21032-M$39.95 -
HKP VP9/T 9mm Micro Comp - Threaded 13.5x1 LH
HKP HK Parts
$49.95HKP VP9/T 9mm Micro Comp - Threaded 13.5x1 LH This precision engineered compensator is designed to enhance your shooting experience by reducing muzzle rise and improving accuracy. It's crafted for seamless installation and reliable performance...HKP-18061$49.95 -
HKP/H&K SP5/K 9mm Thread Protector - Threaded 1/2x28
HKP HK Parts
$19.95HKP/H&K SP5/K 9mm Thread Protector - Threaded 1/2x28 An essential replacement thread protector for lost or damaged thread protectors & caps. This part is compatible with all factory specification SP5 barrels. Specifications: Made In The...HKP-21375$19.95 -
Magpul Rail Light Mount M-LOK
Magpul
$19.95Magpul Rail Light Mount M-LOK Designed for use with all M-LOK mounting surfaces, the M-LOK polymer cantilever rail/light mount allows the attachment of various MIL-STD-1913 Picatinny spec rail-mounted accessories such as lights and optics, and directly...HKP-20689$19.95 -
Magpul SL HK MP5 Binary Trigger Group
FA Franklin Armory / Magpul
$859.95 - $889.95Magpul SL HK MP5 Binary Trigger Group: Latest and greatest trigger group option for those looking for a binary option and the added comfort of the Magpul housing. We take a Magpul SL housing, our compatible binary selector levers, and complete it with a...HKP-21406-M$859.95 - $889.95 -
RCM HK G3K Locking Piece #18 - 50 Degree
RCM
$49.95RCM HK G3K Locking Piece #18 - 50 Degree The #18 LP is the factory-correct locking piece for G3K style builds or other custom builds. The locking piece is the timing mechanism that a delayed roller lock firearm uses to tell...HKP-02522$49.95 -
Sale
Troy Industries 30 Round M16/AR-15 Battle Magazine - Black
Troy Industries
Now: $9.95Was: $13.99Troy Industries 30 Round M16/AR-15 Battle Magazine - Black Troy Battle Magazine featuring a slick polymer textured design for smooth operation. Also comes with a free interchangeable pull tab ($5 value) for those that want the "pull" feature. Compatible...HKP-15489Now: $9.95Was: $13.99 -
Out Of Stock
B&T Sling Swivel - Universal Picatinny Attachment
B&T Brugger & Thomet
$29.95B&T Sling Swivel - Universal Picatinny Attachment Designed for H&K snaphooks, mounts to any M1913 Picatinny Rail. Strong non maring silent attachment point. Specifications: Color: Black Height max: 16.3 mm Length max: 12 mm Length of...HKP-16893$29.95 -
Comp-Tac HK P30L Comp Carry Holster - Left Hand
Comp-Tac
$81.95Rail Mount Compensator & Comp Weight - International Holster - Left Hand - HK P30L At last a custom made Comp-Tac International OWB holster for your HK pistol that allows you to have the Rail Mount Compensator, Comp Weight, or Match Weight...HKP-20021$81.95 -
Sale
FN-FNS .40 S&W Pistol Parts Kit
FN
Now: $287.95Was: $399.95FN FNS -40 Cal Pistol Parts Kit Kits comes complete less the lower receiver. Each kit was handpicked and comes in in the factory hard case as pictured. Includes: Complete slide assembly with firing pin and extractor assemblies Recoil rod...HKP-19741Now: $287.95Was: $399.95 -
German HK 416, MR556 - Barrel Nut
H&K Heckler & Koch
$53.95HK MR556 & HK 416 Barrel Nut Or Socket For Barrel All steel barrel nut. This item is a must-have repair and replacement part for removal or when you have any work done to your barrel, as the barrel nut may become damaged in the removal and...HKP-02535$53.95 -
Sale
Glock 17, 19 24-Round 9mm Magazine - Orange Follower
Glock
Now: $28.95Was: $39.95Glock 17, 19 24-Round 9mm Magazine - Orange Follower Each Glock magazine is constructed from a hardened steel insert encased in high tech polymer to protect the magazine and prevent deformation, even when dropped from a great height. The high quality...HKP-19725Now: $28.95Was: $39.95 -
GSG9 HK G36C Gas Piston Rod Spring Assembly - Black
GSG9
$82.95HK German G36C Gas Piston Rod & Spring Assembly Complete A must have item for HK G36C conversions from SL8's or for spares for your G36C MG. A high wear and replacement part and a must have for spare parts.HKP-18250$82.95 -
H&K 91/G3 (7.62x51/.308) Wood Stock w/ Enhanced Buffer Installed
H&K Heckler & Koch
$229.95HK German G3, 91, PTR Wood Stock With- Enhanced DMR Buffer Installed Each stock includes: Metal Backplate With Recoil Spring Installed Modified by our HK gunsmith and an enhanced heavy buffer has been installed Heavy Buffer Assembly Complete Wood Stock...HKP-16697$229.95 -
H&K HK .45 ACP Pistol Field Cleaning Kit
H&K Heckler & Koch
$69.95H&K HK .45 ACP Pistol Field Cleaning Kit This is a genuine HK factory cleaning kit and is recommended by HK for all HK pistol owners. Compatible With: HK45, HK45 Tactical HK45C, HK45C Tactical USP 45, USP 45 Tactical USPC 45, USPC...HKP-01245$69.95 -
H&K HK MP5/MP5K Semi Auto Ambidextrous Trigger Pack
HK Parts, Heckler & Koch
$299.95H&K MP5/K 9mm Semi-Auto Ambidextrous Trigger Pack Each Trigger pack is fully assembled and ready to drop in your Ambi FBI, Navy pictogram housing. All parts are German HK with the exception of the trigger pack box and the 9mm ejector lever...HKP-19867$299.95 -
H&K HK USP Full Size 9mm/.40 S&W Extractor
H&K Heckler & Koch
$39.95H&K HK USP Full Size 9mm/.40 S&W Extractor New HK German. A great spare & replacement item for your USP 9mm or USP .40 pistol. Compatible With: HK USP 9mm HK USP 40 S&W HK USP Tactical, Expert, EliteHKP-00324$39.95 -
H&K HK USP/Mark 23 .45 ACP Magazine Locking Plate
H&K Heckler & Koch
$8.95HK Magazine Locking Plate For .45 Cal - 12 Round Magazines New HK German magazine locking plate. Compatible With: HK Mark 23 12 Round HK USP .45 12 RoundHKP-01588$8.95 -
Out Of Stock
H&K MP5, MP5K Case Deflector
H&K Heckler & Koch
$0.00HK German case deflector for receiver flat or receiver for all MP5, HK94, MP5K & SP89 builds. The case deflector is riveted or welded in place on the ejection port of the 9mm receiver/flat to aid in the extraction of the 9mm round. HK MP5, 94 HK...HKP-00871$0.00 -
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Ejector Lever
H&K Heckler & Koch
$39.95HK German UMP & USC Ejector Lever - German New HK German OEM part. Each unit fits all calibers of UMP & USC firearms. A great spare to have on hand as they are prone to shearing off with use and must be replaced. Compatible With: UMP .45 UMP ...HKP-00263$39.95 -
HK VP9L International RH Holster - Black
Comp-Tac
$86.95HK VP9L International Holster - Right Hand The International is an outside the waistband holster with a modular mounting design giving the user 16 holster options in 1. Designed to be worn at 3:00 this holsters is perfect for competition shooting,...HKP-19092$86.95 -
HKP +5 HK P2000/USPC .40 S&W Magazine Extension
HKP HK Parts
$49.95HKP +5 HK P2000/USPC .40 S&W Magazine Extension HK Parts magazine extension +5 adds 5 additional rounds to the HK P2000, 12 round magazine. It uses the existing mag body, spring, and follower. Just slide the magazine extension on and tighten it...HKP-18644-M$49.95 -
HKP HK VP9 Ultra Match Trigger Return Spring
HKP HK Parts
$9.95HKP HK VP9 Ultra Match Trigger Return Spring Ultra Match trigger return spring will give your VP9 and VP40 an even smoother, crisper, and lighter pull. This helps promote consistent match-grade accuracy and control by dropping the trigger pull...HKP-21164$9.95 -
Sale
HKP MP5K/SP89/SP5K 9mm Receiver Flat
HKP HK Parts
Now: $99.95Was: $159.95HK U.S Made MP5K, SP5K, & SP89 Receiver Flat HK MP5K receiver flat (no FFL required) as these are flats and are not considered receivers until the flat is rolled. These are the latest generation flats that have all of the latest improvements. Just...HKP-00768Now: $99.95Was: $159.95 -
HKP/H&K VP9/P30 +15 Magazine Extension
HKP HK Parts
$22.95 - $29.95HKP/H&K VP9/P30 +15 Magazine Extension The HK Parts manufactured HK pistol mag extension allows the user to convert existing VP9, P30, P2000, & USPC magazines to an enhanced magazine capacity. Each mag extension is made from next-generation...HKP-16857-M$22.95 - $29.95 -
MP5 9mm Reverse Stretch Recoil Assembly
$37.95Complete Recoil Rod Assembly For The MP5 Reverse Stretch New US made MP5 reverse stretch or MP5 Full size compact recoil rod assembly complete micro polished and built of the finest materials to make the finest US made recoil assembly available. All...HKP-16580$37.95 -
PTR HK 91/G3 (7.62x51/.308) Complete Fixed Stock - Black
PTR
$199.95New HK91, G3, PTR-91 US-Made (PTR-91 Manufactured) Fixed Stock Made from all German & US-made HK parts. This stock will fit any of the HK G3 & HK 91 & PTR rifles. This stock also counts as one US-compliant part for 922r compliance. This stock...HKP-00896$199.95 -
UTG Quick Detach Low Profile Folding Grip
UTG
$49.95UTG Quick Detach Low Profile Folding Grip Features: Unique knurled surface for the most solid grip Smart Posi-Lock cross bolt and spring tensioned locking plate with steel insert for the most secure installation Fully adjustable quick detachable...HKP-15029$49.95 -
Franklin Armory - BFSIII MP5 – Binary Trigger Group – SEF Navy Housing
FA Franklin Armory
$899.95Franklin Armory - BFSIII HK-C1 – Binary Trigger Group – SEF Navy Housing SEF Navy style- HK binary trigger group Binary triggers count as 4 922r compliant components. The components that count towards 922r compliance include the trigger...HKP-19506-M$899.95 -
H&K 15 Round MP5/SP5/MP5K/SP5K 9mm Curved Magazine - Cerakote
H&K Heckler & Koch
$99.95HK German MP5, MP5K, SP5, SP5K - 15 Round Magazine - Cerakote Brand new factory fresh German HK 15 round curved magazine. Perfect for those in need of a lower capacity magazine for a more comfortable prone position shooting. Compatible With:...HKP-21383-M$99.95 -
H&K 45 .45 ACP Tactical Barrel - Threaded 16x1 LH
HKP HK Parts
$339.95H&K 45 .45 ACP Tactical Barrel - Threaded 16x1 LH New HK45 German factory cold hammer forged threaded barrel for use with flash hiders or sound suppressors. This is a drop-in barrel for any of the HK45 full-size pistols. No gunsmith is required as...HKP-01207$339.95 -
H&K Ambidextrous Sling Pin O-Ring
H&K Heckler & Koch
$1.95H&K Ambidextrous Sling Pin O-Ring HK ambidextrous sling pin replacement O-ring for all ambidextrous sling pins. This item is a common wear/breakage part that does need to be replaced from time to time. This is the part that creates the + seal to keep...HKP-01090$1.95 -
H&K German MP5K 4 Position (0,1,3,F) Burst Trigger Group
H&K Heckler & Koch
$3,299.95HK German MP5K 4 Position (0,1,3,F) Burst Trigger Group New HK German factory fresh 9mm MP5K 4 position burst trigger group. Each unit comes just as it comes from the factory in Germany and is complete with trigger pack, left and right selector lever...HKP-00403$3,299.95 -
H&K HK MR556/416 Buffer Retaining Pin
H&K Heckler & Koch
$15.95HK 416 & MR556 Buffer Retaining Pin New HK German proprietary HK designed buffer pin unique to the HK 416 and MR 556 series. Compatible With: HK MR556 HK 416 HK M27HKP-02544$15.95 -
H&K HK USP 9mm / .40 S&W Magazine Loader - Black
H&K Heckler & Koch
$24.95H&K HK USP 9mm / .40 S&W Magazine Loader - Black Factory new Heckler & Koch. Compatible With: HK USP 9mm HK USP .40 S&W HK USP .357 SIG Please Note: This does not fit USP .45 magazines.HKP-01165$24.95 -
H&K MP5 & MP5K Stop Pin, Axle Set For Bolt Carrier
H&K Heckler & Koch
$14.95MP5 & MP5K Stop Pin, Axle Set For Bolt Carrier Each set is designed to keep the locking piece clocked at the correct location and in place when the stop axle and pin set are installed in the carrier. This item can become damaged...HKP-02558$14.95