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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HK G36/SL8 (5.56/.223) Factory Recoil Buffer
USA
$16.95HK G36 Or SL8 Factory Recoil Buffer A must have spare part as the buffer is prone to wear and breakage. Compatible With: All HK G36 models SL8 models ClonesHKP-18541$16.95 -
HKP 93/33 (5.56 / .223) M-LOK Handguard
HKP HK Parts
$139.95HK93, 33 & PTR Low Profile Forearm M-LOK The M-LOK tactical hand guard easily installs on your firearm with minimal effort and locks up solid. No fitting required. Designed from the ground up by roller lock & HK enthusiasts with your shooting...HKP-17263$139.95 -
On Sale
HKP AR-15 Mil-Spec Buffer Tube
HKP HK Parts
Now: $14.95Was: $29.95Mil-Spec US Made Buffer Tube Features: Made From T7 7075 Aircraft grade aluminum 6 Position Made in the USA Each features a highly polished inside tube Black Mil-spec triple hard coat teflon anodized finishHKP-02727Now: $14.95Was: $29.95 -
Maglula Gen 2 AR-15 5.56/.223 Mag Loader/Unloader
Maglula
$26.95Maglula Magazine Loader/Unloader - Generation 2, Lula, 223 Rem/556NATO, Fits AR-15 - Black The Maglula LULA magazine loader & unloader AR-15 for 223 Remington / 5.56mm NATO is a mil-spec tool that allows you to load and unload magazines fast,...HKP-14545$26.95 -
Magpul PMAG 40 Round AR-15 5.56 / .223 Magazine
Magpul
$27.95Magpul PMAG 40 Round AR-15 5.56 / .223 Magazine This magazine is the latest and greatest M3 model NON-windowed 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-16699$27.95 -
Out Of Stock
H&K G36 (5.56/.223) Lower Housing (0,1)
H&K Heckler & Koch
$0.00G36 FBI or Safe Fire Lower Housing We offer this trigger housing or lower without internals, this is unique as before, this G36 lower only came as complete trigger groups (both grip and internals.) This lower housing will help with SL8 to G36 conversions...HKP-01504$0.00 -
Out Of Stock
H&K HK /MR556416 A5 Ambidextrous Complete Selector Lever Set - RAL 8K
H&K Heckler & Koch
$179.95HK 416A5 SEMI & MR556 Ambidextrous Selector Lever Set Complete - RAL 8000 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-17603$179.95 -
H&K HK 416/MR556/AR15 Selector Detent Spring
H&K Heckler & Koch
$9.95HK MR556 & HK 416 Selector Detent Spring HK German manufacture. Compatible With: HK MR556 HK416 AR15, M4 & M16HKP-02657$9.95 -
Lancer 30 Round AR-15 Magazine
Lancer
$29.95Lancer 30 Round AR-15 Magazine Lancer set out to design a better 5.56 magazine; one with the reliability of steel and the durability and weight of polymer. The L5AWM’s exclusive hybrid design includes a hardened steel feed lip assembly molded...HKP-21188$29.95 -
Promag HK 93/53/33 (5.56 / .223) Magazine 40 Round
Promag
$29.95HK93, HK33, HK53 - 40 Round Magazine - USA These count as 3 US-made compliant parts as a bonus for those who need to maintain the 922r compliance. Compatible with all 5.56, .223, and 300 AAC Blackout rounds. Each magazine body, follower, and floorplate...HKP-13970$29.95 -
On Sale
AR-15 Ambidextrous Sling End Plate, Universal
USA
Now: $9.95Was: $13.95AR-15 Ambidextrous Sling End Plate, Universal AR, M4 Ambidextrous End Plate for sling. Made in the USA out of ordnance grade steel. Compatible With: AR15 M5 Other AR buffer tube style buildsHKP-15333Now: $9.95Was: $13.95 -
GSG9 HK G36/SL8 (5.56/.223) Forearm, Lower, Magwell - Push Pin
GSG9
$21.95HK G36, SL8 Push Pin For Forearm, Magwell & Lower Each push pin/locking pin retains the forearm, magwell & lower to the upper receiver. Each G36 style firearm uses a total of 3X of these push pins. Compatible With: G36 G36K G36C G36...HKP-18221$21.95 -
H&K G36 (5.56/.223) 10 Round Factory Magazine - Black
H&K Heckler & Koch
$82.95HK G36 Black 10-Round Magazine Compatible With: G36 G36K G36C Double stack capacity magwell converted SL8's. Features: Capacity: 10 rounds Condition: New Manufactured: HK Germany factoryHKP-01083$82.95 -
H&K HK 416/417 Buffer Retainer
H&K Heckler & Koch
$9.95H&K HK 416/417 Buffer Retainer New HK USA manufacture for the HK 416 / 417 family of firearms. Made from stainless steel.HKP-20040$9.95 -
On Sale
H&K HK G36 Poster
H&K Heckler & Koch
Now: $4.95Was: $14.95H&K HK G36 Poster Limited edition print no longer in production. Shows all models of the famous G36 battle rifle. Available while supplies last! Specifications: Height - 24" Width - 18"HKP-16688Now: $4.95Was: $14.95 -
H&K HK MR556/416 Vented Slimeline Gas Block
H&K Heckler & Koch
$135.00HK German MR556, 416 Gas Block Complete - Low Profile This part is the factory slim-line, low-profile gas block for the MR556/HK416. There are no bayo lug or sling attachment points. This is the factory-correct gas block found on the...HKP-02660$135.00 -
HKP HK MR556/416 Barrel Nut
HKP HK Parts
$39.95HK MR556, HK 416 Barrel Nut Or Socket For Barrel - Aluminum 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 installation processes. Made in the USA...HKP-17273$39.95 -
X Products HK 93/53/33 (5.56 / .223) 50 Round Drum Magazine - ON SALE!
X Products
$249.9550 Round Drum HK 93, 33, 53 & Clones, Custom Builds - X93, 33, 53 Finally after a couple year wait for X Products to release them. We have them in hand & shipping! ON SALE WHILE SUPPLIES LAST! X Products 50 round drum for the HK93,33,53 family...HKP-17812$249.95 -
H&K 93/53/33 (5.56 / .223) Extractor
H&K Heckler & Koch
$67.95H&K 93, 53, & 33 (5.56 / .223) Extractor A great replacement for your HK or clone. A high wear item that can become worn, chipped, and non-relaible. A must have spare part. German HK factory fresh production.HKP-00189$67.95 -
H&K 93/53/33 (5.56 / .223) Magazine Clamp
H&K Heckler & Koch
$107.95HK 93, HK 33 & HK 53 Magazine Clamp German HK dual mag clamp for all HK 93/33/53 magazines. Holds two magazines together for easy access and ease of use. Compatible With: HK93 HK33 HK53 Clones and other custom buildsHKP-00485$107.95 -
H&K HK 416/MR556 Enhanced Buffer Tube-Commercial
H&K Heckler & Koch
$249.95HK 416, MR556 OTB (over the beach) Buffer Tube, Receiver Extension - Commercial: Genuine HK German manufactured 416, MR556 new style latest generation marine environment & over the beach buffer tube. Each Commercial buffer tube has built in drainage...HKP-15424$249.95 -
H&K HK G36 Backplate Complete w/ Recoil Assembly
H&K Heckler & Koch
$199.95HK G36 Backplate Complete With Recoil Assembly New HK German G36 Backplate with new G36/SL8 recoil buffer and recoil assembly. This assembly does include the recoil rod retaining screw. This is a great spare or replacement to have on hand. These are also...HKP-16735$199.95 -
H&K HK416 Full Auto Ambi Selector Lever Kit - 3 Position Polymer Selectors
H&K Heckler & Koch
$159.95HK416 Full Auto Ambi Selectors Kit - German HK - 3 Position Each set comes complete with everything you will need to upgrade your HK 416 to an ambi selector lever set up. The HK 416A5 polymer selector levers will be helpful for a quick visual...HKP-20398$159.95 -
HKP HK 93/53/33 (5.56 / .223) Receiver Flat With Weldment Set
HKP HK Parts
$229.95HK .223, 556, & 300 BLK Receiver Flat With Complete Weldment Set Combo Each flat and weldment set comes with 223/556/300BLK complete as a builders combo ready to assemble. Compatible With: HK93, HK33, & HK53 Style Builds 300...HKP-00006$229.95 -
Out Of Stock
HKP HK G36C Barrel Front End Kit
HKP HK Parts
$889.95G36C Barrel Front End Barrel Kit - 223/556 New production HK G36C style barrel conversion kit and front end kit. Each kit will include the necessary parts to build a G38/SL8 variant into the G36KC barrel length variant as pictured. All you need is this...HKP-18228$889.95 -
H&K 93/33 (5.56 / .223) - Recoil Spring
H&K Heckler & Koch
$8.95HK German factory HK 93, 33 & 33K Replacement Recoil Spring Compatible With: HK 93 HK33 HK33K Clones or other custom buildsHKP-02097$8.95 -
H&K HK MR556/416 Bolt Catch Plunger
H&K Heckler & Koch
$8.95HK MR556 & HK 416 Bolt Catch PlungerHKP-02655$8.95 -
H&K HK MR556/416 Ejector For Bolt Head
H&K Heckler & Koch
$23.95H&K HK MR556/416 Ejector For Bolt Head HK German factory part. Compatible With: MR556 HK 416HKP-00037$23.95 -
H&K HK MR556/416 Extractor
H&K Heckler & Koch
$76.95HK 416 & MR556 Bolt Head Extractor New HK - German Compatible With: MR556 CR556 HK 416 HK M27HKP-00036$76.95 -
H&K HK MR556/416 Magazine Catch
H&K Heckler & Koch
$49.95HK 416, MR556 Magazine Catch New HK German manufacture magazine catch for the HK 416 and MR556 family of firearms.HKP-15458$49.95 -
Surefire HK MR556/416 Muzzle Brake/Suppressor Adapter
Surefire
$165.00SureFire SFMB-556-1/2-28 muzzle brake/Suppressor Adapter Each unit fits M4 / M16 & HK 416, MR556 weapons and variants with 1/2-28 muzzle threads, greatly reduces both recoil impulse and muzzle rise so that the weapon tracks straight back to keep you...HKP-17378$165.00 -
GSG9 HK G36C/G36K Gas Piston
GSG9
$74.95HK G36C & G36K Gas Piston Complete - USA New USA manufactured G36C & G36K gas piston complete with 3 X gas piston sealing rings installed. All stainless steel construction with the durable nitride finish. A great spare or replacement part. This...HKP-18253$74.95 -
H&K (5.56 / .223) Chamber Flute Brush
H&K Heckler & Koch
$29.95New HK German .223/556 Chamber Flute Cleaning Brush This item is ideal to have on hand for cleaning the flutes of the barrel. The flutes have to remain clean for the rounds to be extracted properly. This item is highly recommended for cleaning.HKP-00464$29.95 -
H&K 93/53/33 (5.56 / .223) Trigger Group - SEF Navy Style - Full Auto - Push Pin
H&K Heckler & Koch
$349.95HK German HK93, 33, 33K, 53 SEF Navy Style F/A Trigger Group Complete - Used ON SALE FOR A SPECIAL PROMOTION WHILE SUPPLIES LAST!!! Each trigger group is comprised of genuine Heckler & Koch products Includes: German Full Auto trigger pack with all...HKP-18189$349.95 -
Out Of Stock
H&K HK G36 Backplate w/ Recoil Buffer
H&K Heckler & Koch
$79.95HK G36 Backplate With Recoil Buffer This is a great spare or replacement to have on hand. These are also required for those that are doing the SL8-G36 conversions provided by Tommy Bostic & Chopstix Kid.HKP-01058$79.95 -
H&K HK MR556/416 Ejection Door Lock Bolt Pin
H&K Heckler & Koch
$4.95HK MR556 & 416 Ejection Door Lock Bolt Pin Compatible With: HK 416 HK MR556HKP-02536$4.95 -
H&K HK MR556/416 Fire Control Detent Stop Pin
H&K Heckler & Koch
$16.95H&K HK MR556/416 Fire Control Detent Stop Pin HK German.HKP-15272$16.95 -
HKP HK 416C 9" Complete Upper Receiver Assembly
HKP HK Parts
$2,799.95HK416C Complete Upper Kit - 9" After years trying to get these back in. We finally bring you a rare unicorn of a find. With our complete 416c upper kit all that would be needed to complete this kit would be a mil-spec lower or a STS 416c lower...HKP-21042$2,799.95 -
HKP HK MR556/416 A5 Style Trigger Guard - Black
HKP HK Parts
$39.95HKP 416 & HK MR556 HK416A5 Style Trigger Guard - Black Now you can upgrade your MR556, 416 & CR556 to the latest Gen HK 416 A5 Enhanced Trigger Guard. Fully assembled and ready to drop in. With a larger trigger guard area you can now use gloves...HKP-17793$39.95 -
Geissele HK 416 Super Modular M-LOK 14.5" Rail - Black
Geissele
$499.95Geissele HK 416 Super Modular M-LOK 14.5" Rail - Black The Super Modular Rail HK416 M-LOK was designed to replace the standard rail on an HK416 or MR556 weapon platform. The rail system utilizes the stock HK barrel nut, but incorporates the strength,...HKP-19806$499.95