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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H&K 30 Round HK 416 .22LR Magazine - Black
H&K Heckler & Koch
$29.95HK, Umarex, Walther, HK416 - .22LR Magazine - 30 Round Magazine - BLACK Heckler & Koch Factory magazines are made to H&K specifications and tolerances using high quality materials that provide perfect fit, durability and reliability. Expect...HKP-19834$29.95 -
H&K G36 (5.56/.223) 30 Round Magazine - Black
H&K Heckler & Koch
$49.95HK German G36 30 Round Magazine The new HK German 30-round magazine fits all G36, G36K, and G36C variants & converted SL8's with the G36 mag well—factory fresh latest HK manufacture.HKP-00624$49.95 -
Walther 10 Round HK 416/G36/Colt M4 .22LR Magazine - Black
Walther
$35.00HK, Walther, Colt, Beretta - HK416 .22 - 10 Round Magazine Impact-resistant polymer construction. Thumb-assisted loading button. Heavy-duty spring-steel mag spring. Compatible With: HK 416 .22 Colt M4 .22 Beretta AR160 HK G36 .22 Hammerli Tac .22HKP-01747$35.00 -
HKP HK G36/SL8 (5.56/.223) Bottom Rail - 6 inch
HKP HK Parts
$27.95G36 & HK SL8 6" Bottom Rail Fits the SL8 and G36 full-size forearms. This item is just over 6" in overall length and is made from aircraft-grade aluminum. Comes with the screws needed for installation. From the center of the screw holes, there are...HKP-00285$27.95 -
H&K HK SL8, HK G36 Extended Mag Release
H&K Heckler & Koch
$49.95HK Sl8 & G36 Oversized Extended Mag ReleaseNew HK German Sl8, G36, HK243 extended magazine release. A must have upgrade for your HK SL8, Sl8-G36 conversion or G36 firearm. The HK extended magazine release is a drop in replacement and requires zero...HKP-17720$49.95 -
H&K G36/SL8 (5.56/.223)Forearm, Lower, Magwell - Push Pin
H&K Heckler & Koch
$34.95New HK German G36 & HK SL8 Push Pin For Forearm, Mag Well Or Lower Each push pin is a factory German part and is new. This is also required for those doing the SL8 to G36 style conversions. A factory German G36 uses three of these factory push pins...HKP-00804$34.95 -
H&K G36/MR556/MR762/416 (5.56/.223/7.62x51/.308) Extractor Spring
H&K Heckler & Koch
$8.95HK German Extractor Spring A must-have replacement wear part and a great item to have on hand. Compatible With: HK G36 HK G36K HK G36C HK SL8 HK 416 HK MR556HKP-00288$8.95 -
Out Of Stock
H&K HK G36/SL8 Bipod - Black
H&K Heckler & Koch
$0.00New HK G36 & HK SL8 Factory Bipod Heckler & Koch German made. Manufactured with steel-reinforced HK composites. Compatible With: HK G36 HK SL8-6 Newer black rifles or the SL8-1 with a proper forearm HK G36K - Must be an early style that has a...HKP-00270$0.00 -
HK G36/SL8 (5.56/.223) Barrel Wrench
$129.95Barrel Wrench HK SL8 & G36 It will fit everything from the 9" G-36C to the 20" SL-8. The wrench features 3 points of contact to ensure maximum connection and maximum torque to the barrel nut. It also features a 3/8" drive socket to allow loosening...HKP-00283$129.95 -
HKP HK G36, SL8 Forearm, Lower, Magwell U.S Push Pin - Black
H&K Heckler & Koch
$18.95HKP HK G36, SL8 Forearm, Lower, Magwell U.S Push Pin - Black U.S G36 push pin. Black oxide for the best looking finish. This push pin is also required for those doing the SL8 to G36 Style Conversions. A factory German G36 uses three of these factory push...HKP-20730$18.95 -
H&K HK MR556/MR762/416/417/G36/SL8 Complete Gas Piston
H&K Heckler & Koch
$50.95HK MR556, MR762, 416, 417, G36, & SL8 Complete Gas Piston New HK German gas piston assembly with three locking piston rings installed. This is a great spare part to have on hand, as the gas piston takes a lot of wear and tear. Compatible With: HK...HKP-00047$50.95 -
On Sale
H&K HK G36 Complete Poster Set
H&K Heckler & Koch
Now: $9.95Was: $24.95Poster Dimensions: MP5 Parts Diagram: Height- 24" Width- 36" G36: Height- 24" Width- 18" MP7: Height- 24" Width- 18"HKP-16691Now: $9.95Was: $24.95 -
GSG9 HK G36 Mag Well - Black
GSG9
$58.95HK G36 Magazine Well Allows Use Of All factory G36 & Magpul G36 Magazines. Fits all 30 round, 10 round & 100 round magazines & drums. Made from high impact polymer. HK G36 HK G36K HK G36C Clones or other customer buildsHKP-18220$58.95 -
Magpul 30 Round HK G36 5.56/.223 Magazine - Black
Magpul
$29.95Magpul 30 Round HK G36 5.56/.223 Magazine - Black The PMAG 30G Maglevel (5.56 NATO / .223 Remington) is a durable, lightweight, highly reliable 30-round polymer magazine for the HK G36 series of firearms. Including the SL8 conversions that now use G36...HKP-01740$29.95 -
Out Of Stock
HKP Piston 3-Ring Replacement Set
H&K Heckler & Koch
$0.00HKP Gas Piston Ring Replacement Combo Set- 3 Rings The gas rings are prone to periodic breakage and wear and tear and require them to be replaced periodically. These are some of the most common breakage parts we see that need to be replaced on these...HKP-00048$0.00 -
HK G36, HK SL8 Side Rail Factory HK - Black
H&K Heckler & Koch
$67.95HK Factory German G36 & SL8 Side Rail With Screws Up to two side rails can be used on a G36 UMP, one for each of the sides. Made from hard coat anodized aluminum. Compatible With: SL8 full size G36 full sizeHKP-01962$67.95 -
HK G36/SL8 (5.56/.223) Barrel Mandrel
$99.95Barrel Mandrel For Removal & Installation of HK G36 & SL8 Barrels The mother of invention comes the state-of-the-art H&K SL-8 and G-36 barrel wrench. Will fit everything from the 9" G-36c to the 20" SL-8. The barrel mandrel...HKP-02608$99.95 -
XS HK UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Night Sight - Front
XS Sight Systems
$84.95XS Sight Systems Trijicon - Front Night Sight Standard dot, the perfect size and fitment. This is a direct replacement for the factory sight. The night sight installs within a couple of minutes. The custom sight will enable you to get on target quicker...HKP-00808$84.95 -
Out Of Stock
H&K G36 (5.56/.223) Rear Stock Axle Pin
H&K Heckler & Koch
$0.00G36 Rear Stock Axle Pin For SL8 To G36 Stock Conversion New HK German manufacture. This is the axle pin that holds the G36 or G36C folding stock to the rear section of the receiver. Also used to mount the US-made rear stock block for those who are doing...HKP-00741$0.00 -
HKP HK G36/SL8 Family Armorer's Manual
HKP HK Parts
$19.95HK G36 & HK SL8 Family Armorer's Manualf This manual is the most comprehensive manual available for the G36 & SL8 family of firearms. The manual covers the G36 & SL8 family in-depth to include all aspects of history, origin, makeup,...HKP-00627$19.95 -
HKP HK UMP, G36 Selector Lever
HKP HK Parts
$8.95HK UMP & G36 Left Side Safety Selector Lever With Axle - Replacement selector for HK PARTS TRIGGER GROUP HK Parts selector lever for the left side of our own 2 position FBI U.S housing for the UMP pictogram lowers. Compatible With: U.S FBI 2...HKP-20180$8.95 -
HKP HK UMP, G36 3 Position Selector - Right
HKP HK Parts
$8.95HKP HK UMP, G36 3 Position Selector - Right HK UMP & G36 right safety selector lever for all 3 position HK UMP & G36 lowers only.HKP-20179$8.95 -
Out Of Stock
H&K HK G36 to AR-15 Mag Conversion Mag Well - Black
H&K Heckler & Koch
$0.00HK G36 To AR15, M4 Magazine Conversion Simply swap the magazine well from the G36 to this offering and you can then run AR15/M4 style magazine in your G36 or SL8/G36 conversion. Allows Use Of All AR15-M4 magazines in the G36 with this magwell adapter...HKP-17605$0.00 -
Out Of Stock
GSG9 HK G36 (5.56/.223) Incomplete Bolt Head
GSG9
$0.00G36 Incomplete Bolt Head - USA G36 bolt head allows the use of double stack magazines in your SL8 conversion to high-capacity G36, Magpul, or AR15 magazines.HKP-00802$0.00 -
H&K G36 (5.56/.223) 4 Position Retractable Stock - Folding
H&K Heckler & Koch
$349.95HK G36, G36k, G36C, & SL8 Conversion Rear Stock Assembly The G36 KV stock, as it is known, was built by HK for a military contract and is built HK tough with an overall length of 8.5 inches (fully collapsed) to 11.40 inches when fully extended. Each...HKP-02682$349.95 -
H&K Standard Roller 8.00mm - Used
H&K Heckler & Koch
$7.958.00mm Standard Size (zero or unmarked) For HK Roller Lock Bolt HeadHK spec new unmarked 8.00mm roller that will fit all HK bolt heads including HK91/G3, HK93/33/53, HK94, MP5, SP89 all clones and the Cetme & Cetme clones. An easy way to remember...HKP-19374$7.95 -
H&K G36/SL8 (5.56/.223) Sight Rail With Front & Rear Sights
H&K Heckler & Koch
$289.95H&K German G36 & SL8 Picatinny Sight Rail With Front And Rear Iron Sights Each rail works well with optics such as Eotech or Aimpoints. This is also a great part if you want a lower cheek weld and low-profile sight system. Made from durable...HKP-00274$289.95 -
HK G36/SL8 (5.56/.223) Extractor Axle
$6.95HK G36, SL8 Extractor Axle- US MadeNew extractor axle for use on all G36, Sl8 bolt heads. This part can become heavily worn and is prone to breakage.Fits all: HK G36 models HK Sl8 modelsHKP-18370$6.95 -
H&K G36/SL8 (5.56/.223) Bolt Head Ejector Pin
H&K Heckler & Koch
$7.95Bolt Head Ejector Pin For G36 & SL8 This item is the pin that holds the ejector & ejector spring in place. It is a common wear and replacement item and a must-have when doing bolt head maintenance.HKP-01876$7.95 -
H&K HK SL8, HK G36 Extended Bottom Rail Kit - Black
H&K Heckler & Koch
$99.95SL8 & G36 Extended Bottom Rail. This rail is the factory correct HK German manufactured bottom rail for the G36 or SL8 rifle. This allows the longest rail on the bottom of the polymer forearm. 9.25" in length overall. Comes with all mounting hardware...HKP-16549$99.95 -
$8.95 -
HK UMP & G36 Pistol Grip Storage Insert
USA
$16.95HK UMP & G36 Pistol Grip Storage Insert G36 & UMP pistol grip insert for all G36 & UMP lower housings. This is the piece that locks into place and fits in the bottom of the handle itself. This is a perfect storage location for paperwork,...HKP-20176$16.95 -
HK G36K/G36C Tri Rail Set Complete - Black
HKP HK Parts
$64.95HK G36C, G36K, & G36 .22LR Bottom & Side Rail Set Universal Picatinny mounting rail system, mounting screws, and hex wrench. This system includes the bottom, left, and right side tactical rails (3 rails total). This set of rails will fit all HK...HKP-00272$64.95 -
HK G36, SL8 Fixed Sights & Optic Rail
USA
$199.95HK Sl8, G36 Sight Rail With Front & Rear Fixed Sights US made HK HK Sl8, G36 Picatinny Rail with fixed iron sights. Comes exactly as shown with no mounting hardware. Compatible With: HK SL8, HK Sl8-1 G36, G36K, G36CHKP-19717$199.95 -
H&K HK G36 15.4" CQB Barrel Assembly - Black
H&K Heckler & Koch
$1,095.95Factory German HK G36 CQB Barrel Assembly - NewBrand new HK German cold hammer forged barrel assembly, date coded, uninstalled & unfired in the factory wax paper wrapping. This is a one time offering never to be available again. Each barrel assembly...HKP-17026$1,095.95 -
H&K HK G36, HK G36K Full Size Folding Stock - Black
H&K Heckler & Koch
$139.95HK G36 or G36K Folding Stock HK G36 Stock complete for full-size G36 rifles. This is the longest stock available for G36 rifles. This is also the standard G36 and G36K stock with the standard length.HKP-00277$139.95 -
H&K HK G36, HK SL8 Ambidextrous Sling Pin
H&K Heckler & Koch
$49.95HK German G36/SL8 Ambidextrous Sling Pin This part replaces all of the HK SL8 or G36 push pins with a loop for the sling. This can be moved to attach a sling on either the left or right sides with ease.HKP-00619$49.95 -
GSG9 HK G36, HK G36K Folding Stock - Black
GSG9
$115.00HK G36 Full Length Stock HK G36 10.5" Stock complete for G36 firearms. The G36/G36K stock is the longest stock option for the G36 family of firearms. For those that would like a shorter stock choose the G36C length stock. Each stock comes complete with...HKP-18219$115.00 -
H&K HK G36/SL8 Sling - Black
H&K Heckler & Koch
$79.95HK German G36 & SL8 Tactical Sling - BlackHKP-02381$79.95 -
Out Of Stock
HK G36 Backplate w/ Recoil Buffer
USA
$44.95HK G36 Backplate With Recoil Buffer New G36 Backplate with new G36/SL8 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 &...HKP-18538$44.95