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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GSG9 HK G36K Rifle Kit
GSG9
$1,999.95HK G36K Rifle Parts Kit Complete with Folding Stock - USA Made Complete G36K Semi-Auto Parts Kit with Folding Stock. Includes all parts needed for a complete build except the receiver. Click this link to complete your build with a DEFGUNZ DEF36 receiver...HKP-18650$1,999.95 -
H&K G36 (5.56/.223) Catch, Trip Lever
H&K Heckler & Koch
$11.95HK G36 Catch, Trip Lever For Bolt Contact On All G36 LowersHKP-01870$11.95 -
H&K HK 93/53/33 (5.56/.223) Cleaning Kit
H&K / HK Parts
$89.95H&K HK 93/53/33 (5.56/.223) Cleaning Kit New Factory HK German 93, 33, 53, or other HK .223/5.56's cleaning kit for all HK's or clones. This is the factory HK cleaning kit issued by HK as an OEM product. Includes: Cleaning rod for short and long...HKP-01550$89.95 -
Out Of Stock
H&K HK G36 Complete 3X Single Optic Carrying Handle
H&K Heckler & Koch
$695.99H&K HK G36 Complete 3X Single Optic Carrying Handle Brand new. Mounting hardware offered separately.HKP-16388$695.99 -
Out Of Stock
H&K HK G36 Rubber Eye Cap Dual/Single Optic
H&K Heckler & Koch
$9.95HK G36 Rubber Eye Cap for Dual & Single Optic New HK German rubber to replace the worn or missing eye peice cap on all dual or single optics found on the G36 or SL8 rifles.HKP-16385$9.95 -
Out Of Stock
H&K HK G36 Rubber Optical Sight Cover
H&K Heckler & Koch
$10.95H&K HK G36 Rubber Optical Sight CoverHKP-16377$10.95 -
H&K HK MR556/416A5 Quad Rail w/ Flip Up Sight - Black
H&K Heckler & Koch
$599.95HK 416A5 9" Quad Rail With Flip Up Front Sight - Black New latest production HK 416A5, MR556 9" quad rail with integrated built in front flip up sight. Latest upgraded design with the laser markings for the adjustable gas block for suppressed and...HKP-17710$599.95 -
RCM HK 53 Locking Piece #3 - 58 Degree
RCM
$49.95RCM HK 53 Locking Piece #3 - 58 Degree This is the proper locking piece for the HK33K and HK53 firearms, as well as some HK51 builds.HKP-02523$49.95 -
GSG9 HK G36 Complete Semi-Auto Bolt Group - Black
GSG9
$799.95GSG9 - HK G36 Semi-Auto Bolt Group Compatible With: HK G36 HK G36K HK G36C This will not work with a HK SL8.HKP-18944$799.95 -
H&K 33, 93 Full Auto Carrier Bolt Group -Used
H&K Heckler & Koch
$599.95H&K 33& 93 Full Auto Carrier Bolt Group -Used HK German manufactured for HK contract 33, 93 full auto bolt group, early style carrier with a half moon buffer. Used, but in good shape overall. Each Bolt Group Includes: HK33/93 F/A Carrier...HKP-00712$599.95 -
H&K G36/SL8 (5.56/.223) Bolt Group Fork
H&K Heckler & Koch
$12.95HK G36 & SL8 Bolt Group Fork For Cocking HandleHKP-01859$12.95 -
H&K G36/SL8 (5.56/.223) Bolt Heads Ejector
H&K Heckler & Koch
$19.95HK G36/SL8 HK German Bolt Head EjectorHKP-01868$19.95 -
H&K HK G36 Incomplete Single Optic Carrying Handle
H&K Heckler & Koch
$149.95HK G36, SL8 Single Optic Carrying Handle Incomplete The optic housing- no optic included.HKP-16379$149.95 -
H&K HK G36/G36K Gas Block
H&K Heckler & Koch
$99.95HK G36E, G36K - Gas Block - German HK The real deal. HK German G36E, G36K Factory Gas Block. New uninstalled. Compatible With: SL8 Other G36 variants and custom builds and projectsHKP-16351$99.95 -
H&K HK MR556, HK 416 A5 Ambi Selector Lever Set Complete - Black
H&K Heckler & Koch
$179.95HK 416-A5 SEMI & MR556 Ambidextrous Selector Lever Set Complete - Black New HK German manufacture. Complete kit to upgrade the selector lever set on the MR556 to the newer HK 416A5 semi style of levers. A drop in upgrade for the MR556 & CR556...HKP-19375$179.95 -
Out Of Stock
HK G36C/G36K Gas Piston
USA
$49.95HK G36C/G36K Gas Piston New Tom Bostic US Made G36C & G36K Gas Piston. Counts as one US made compliant part for your SL8 - G36C or G36K style conversion. This is one of the best parts to use on the conversion as it is one of the cheapest ways to get...HKP-17277$49.95 -
HKP HK G36C Barrel - Black
HKP HK Parts
$499.95HKP HK G36C Barrel - Black Brand new HK G36C barrel made from 416 stainless steel and nitrided, uninstalled & unfired. The G36C barrel uses a factory German or USA spec G36K/G36C gas block. Counts as one USA made complaint part. Perfect for the...HKP-18195$499.95 -
HKP HK G36C Folding Stock - FDE
HKP HK Parts
$109.95Folding Stock - HK G36C HK G36C 9.5" rear stock assembly. One full inch shorter than the standard G36/G36K stock. This is the preferred stock for average height end users. Compatible With: G36 G36K G36C Sl8 to G36 builds Custom G36 style buildsHKP-19299$109.95 -
HKP HK MR556/416 (5.56/.223) Compensator Flash Hider - Threaded 1/2x28
HKP HK Parts
$39.95HKP HK MR556/416 (.556/.223) Compensator Flash Hider - Threaded 1/2x28 Threaded in 1/2x28, this compensator is compatible with HK 416, MR556, and other AR-style applications. The blitz compensator is renowned for its effectiveness, offering a significant...HKP-18468$39.95 -
Out Of Stock
HKP HK MR556/416 M-LOK 9" Handguard - Black
HKP HK Parts
$199.95HK MR556 & HK416 9" M-LOK ForearmWeight: 10.2 ozMADE IN THE USA AND BILLET MACHINED. MUCH LIGHTER THAN THE HK FACTORY FOREARM OFFERINGS.HKP-17981$199.95 -
RCM HK 93/53/33 # 8 Locking Piece 53 Degree
RCM
$49.95RCM HK 93/53/33 # 8 Locking Piece 53 Degree New 53 Degree #8 Locking Piece for the HK 93, 33, C93 & V93 rifles. Made in the USA from ordnance grade steel, heat treated and made to last. A pefect upgrade for your well used or questionable C93 or C93P...HKP-16555$49.95 -
Out Of Stock
H&K HK G36 Convex Folding Adjustable IDZ Stock - Black
H&K Heckler & Koch
$399.95H&K HK G36 Convex Folding Adjustable IDZ Stock - Black Features: 3 position forward and back 3 cheek piece elevation positions. Folding capability while retaining the ability to fire with the stock folded. Super robust, compact designHKP-17703$399.95 -
H&K HK MR556, HK 416 9" M-LOK Handguard - Black
H&K Heckler & Koch
$399.95Handguard - 9" - Black - M-LOK - HK MR556, HK 416 New HK German manufactured forearm for the HK 416 and MR556 firearm. Comes exactly as pictured.HKP-19670$399.95 -
H&K HK MR556/416 Complete Floor Plate
H&K Heckler & Koch
$10.95HK German HK 416, MR556 Floor Plate Extension Complete All steel HK Marked 30, 20 & 10 round floor plates. Each unit comes complete with the rubber bushing installed in the maritime finish. It is a great spare to have on hand as these do break...HKP-15209$10.95 -
Out Of Stock
H&K HK MR556/416 Standard Length Quad Rail Black
H&K Heckler & Koch
$0.00HK 416, MR556 Quad Rail- Standard Length HK German HK416 & MR556 quad rail complete that includes HK 416/MR556 Handguard Screw. This handguard can also be installed on the CR556 models as well. Compatible With: HK 416 HK MR556 HK CR556HKP-02546$0.00 -
H&K HK MR556/416 Steel Maritime Magazine Follower
H&K Heckler & Koch
$14.95H&K HK MR556/416 Steel Maritime Magazine Follower Compatible With: HK 416 factory magazines such as 30, 20 and 10 roundHKP-15452$14.95 -
Out Of Stock
H&K MP5, 93/53/33, G3/91 (9mm, 5.56/.223, 7.62/.308) 3 Position (0,1,3 Pictogram) Universal Burst Trigger Housing - Clipped & Pinned
H&K Heckler & Koch
$0.00H&K MP5, 93/53/33, G3/91 (9mm, 5.56/.223, 7.62/.308) 3 Position (0,1,3 Pictogram) Universal Burst Trigger Housing - Clipped & Pinned Introducing the new Factory German trigger housing, designed for use in safe, semi, and burst configurations...HKP-20404$0.00 -
HKP HK 93/53/33 (5.56/.223) Firing Pin - Titanium
HKP HK Parts
$49.95HK93, 33, 53 Firing Pin - Titanium Grade 6 weapons grade Titanium manufacture. Made in the USA. A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK 93, HK33 & HK53 weapon system. Get the...HKP-17769$49.95 -
HKP HK G36 Magwell - FDE
HKP HK Parts
$39.95Magazine Well - Magwell FDE - HK G36 Allows use of all factory G36 & Magpul G36 magazines. Fits all 30 round, 10 round & 100 round magazines & drums. Compatible With: HK G36 HK G36K HK G36C Clones or other customer buildsHKP-19300$39.95 -
MI HK MR556/416 M-LOK Compatible 9" Carbine Handguard
MI Midwest Industries
$229.95MI HK MR556/416 M-LOK Compatible 9" Carbine Handguard Features: Made in the USA Simple installation, direct replacement for HK factory handguard Retains factory barrel nut Mil-Spec top rail Seven sides of M-LOK compatible slots Lightweight, rugged 6061...HKP-18436$229.95 -
RCM HK 99/33/33K Full Auto Bolt Carrier US - Black
RCM
$359.95HK 93, 33 & 33K Full Auto Bolt Carrier - US - RCM Brand new US RCM manufactured new style HK33/93, 33K factory bolt carrier. The finest HK bolt carrier ever made with the latest & greatest German inspired improvements and updates. Ideal for...HKP-20537$359.95 -
Sale
AR-15 Magazine Loader
USA
Now: $22.95Was: $39.95AR-15 Magazine Loader - Ram-It Loader Magazine Loader for 556 and 223 magazines. Made in the USA from ABS. Very simple to use.HKP-21154Now: $22.95Was: $39.95 -
H&K G36/SL8 (5.56/.223) Bolt Catch Spring
H&K Heckler & Koch
$9.95HK German G36 & SL8 Bolt Catch SpringHKP-01861$9.95 -
H&K G36/SL8 (5.56/.223) Cocking Handle Spring
H&K Heckler & Koch
$10.95HK German G36 Cocking Handle Spring - All Variants Compatible With: G36 - all variants SL8 - all variantsHKP-01862$10.95 -
H&K G36K Parts Kit w/ Rear Hinge Section
H&K Heckler & Koch
$3,995.00G36K Parts Kit Complete With Stock Hinge Section Finally a factory German HK G36K parts kit with the most desirable of parts and the ultra desirable stock hinge section. Click this link to complete your build with a DEFGUNZ DEF36 receiver...HKP-00269$3,995.00 -
H&K HK 416 Commercial OTB Buffer Tube HK E1 Stock Combo - Black
H&K Heckler & Koch
$469.95HK 416 OTB E1 Stock & Buffer Tube Combo - Commercial Genuine HK 416 E1 commercial stock with the new style marine environment "over the beach" buffer tube. Buffer tube has ball bearing rollers to tighten the stock when locked in position, and helps...hkp-18361$469.95 -
H&K HK 416 Extended 11" A3 Forearm w/ Flip Up Front Sight
H&K Heckler & Koch
$799.95HK 416 A3 Extended Forearm With Integrated Flip Up Front Sight: HK designed & manufactured in Germany 11" HK416 A5, MR556 extended quad rail. This drop in unit offers 2 full inches in extra length. Not the standard 9" rail that comes with the HK...HKP-17377$799.95 -
Out Of Stock
H&K HK 416 Vented Gas Block for 14.5"/16" Barrels
H&K Heckler & Koch
$249.95HK German 416, MR556 14.5" & 16.5" & 20" Gas Block Complete This is the factory-correct gas block with the ambi sling attachment points, as well as the bayonet lug milled into the gas block. Perfect for those who want to swap the MR556 gas block...HKP-01544$249.95 -
H&K HK G36, HK SL8, HK 243 Handguard - Black
H&K Heckler & Koch
$399.95HK German Sl8, G36 & HK243 Aluminum Handguard - IDZ New latest production HK G36, SL8 & HK243 forearm. This handguard offering is made entirely out of aluminum. This is the most robust forearm HK makes or that is available. This was designed for...HKP-17708$399.95 -
H&K HK MR556/416 Charging Handle Release Latch
H&K Heckler & Koch
$39.95HK Ambidextrous HK416, MR556 Charging Handle Release Latch Perfect replacement item for the MR556 & HK 416 charging handle. New HK German manufacture. These can become chewed up and damaged with a hard drop or with heavy use. This is a great item to...HKP-16553$39.95