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 93/53/33 (5.56 / .223) Surplus Fixed Stock - A2 - Black
H&K Heckler & Koch
$249.95Surplus - Fixed Stock - Black - HK93,33,53 HK93 Surplus Stock - Black comes with a matching buttpad. Ready to install on your HK or clone rifle. Last remaining units. Once all are gone there will be no more. Features: HK 93, 33, 53 correct all metal...HKP-19075$249.95 -
H&K HK G36/SL8 Extractor
H&K Heckler & Koch
$76.95G36 & HK SL8 German Extractor For Bolt Head New HK German. This is a great item to keep as a spare. Compatible With: All G36 Variants SL8-1, SL8-6HKP-00287$76.95 -
H&K SL8 (5.56/.223) Adjusting Dual and Single Optic Screw
H&K Heckler & Koch
$14.95HK SL8 Dual and Single Adjusting Optic ScrewHKP-16387$14.95 -
HK G36/MR556/416 (5.56/.223) Chamber Cleaning Brush
HKP HK Parts
$24.95HK G36 & HK SL8 German Chamber Cleaning Brush (Cleans INSIDE Chamber) More details...HKP-00803$24.95 -
B&T HK G36C Quad Rail Handguard - Black
B&T Brugger & Thomet
$269.95B&T handguard Quad Rail for HK G36C Swiss made B&T quad-rail (4 picatinny rails one for each side) handguard for HK G36C. Aluminum version with rail cover and sling swivel. This is the absolute best quality railed handguard available for the HK...HKP-16896$269.95 -
GSG9 HK416, MR556 Firing Pin
GSG9
$34.95Firing Pin for HK 416 & MR556 Firearm - USA - GSG9 New US made HK 416 & MR556 Made from hardened stainless steel. Compatible With: HK416 HK MR556 HK CR556 HK M27HKP-20650$34.95 -
H&K 93/53/33 (5.56 / .223) 25 Round Magazine Spring
H&K Heckler & Koch
$11.95HK 93, 33, & 53 Magazine Replacement Spring For 25-Round Magazines Hard to find and a must-have spare for your HK mags. No longer in production.HKP-00483$11.95 -
H&K HK G36C/G36K Gas Piston
H&K Heckler & Koch
$89.95HK German G36C & G36K Gas Piston - Complete New HK German factory G36C and G36K gas piston complete with sealing rings installed. A great spare or replacement part. This is also a popular part for those upgrading to an SL8 to G36K or C barrel length...HKP-00352$89.95 -
HK G36/UMP Folding Stock Release Spring
H&K Heckler & Koch
$9.95HK G36 Folding Stock Release Spring This is the spring that fits under the stock release button to activate the folding and retention of the G36 or UMP stock. Compatible With: HK G36 HK G36K HK G36C UMPHKP-00637$9.95 -
Bore Boss Pull-Through Bore Cleaner - 5.56mm/.223
Bore Boss
$10.95Real Avid Bore Boss Pull-Through Bore Cleaner - 5.56mm/.223 From the barrel of innovation comes the ultra-compact Bore Boss, the first-ever self-storing, easy-feeding, clean-pulling, field-ready, hassle-free, pure-genius bore cleaner. The single-piece...HKP-19402$10.95 -
GSG9 HK G36K Forearm - Black
GSG9
$120.95HK G36K Forearm With Hand Stop & Heat Shield HK G36K length latest production HK G36K handguard with built in heat shield. Each unit features a built in hand stop with sling attachment points. Built in hard mounting points for adding picatinney rails...HKP-18217$120.95 -
H&K HK 416-A5 Enhanced Ambi Bolt Release
H&K Heckler & Koch
$84.95HK German Enhanced ambi 416 Bolt Release - HK 416 A5 The real deal HK German HK416A5 Bolt Release. Made from hardened steel. A rare part to find. Limited supply that took over 3 years to get in.HKP-19463$84.95 -
HK G36/SL8 (5.56/.223) Bolt Group Fork
USA
$10.95G36 & Sl8 Bolt Group Fork For Cocking Handle - USHKP-18774$10.95 -
On Sale
HKP 5.56/.223 Laser Bore Sighter
HKP HK Parts
Now: $10.95Was: $19.95HKP 5.56/.223 Laser Bore Sighter Red Laser Bore Sight-.223 Laser bore sight system. Each unit comes complete with batteries (3)and instructions for operation. Easy to use and priced so that every shooter can have one for each caliber of firearm that they...HKP-16218Now: $10.95Was: $19.95 -
Tommy Built HK G36, HK SL8 Carry Handle Top Rail - Black
Tommy Built
$349.95Tommy Built HK G36, HK SL8 Carry Handle Top Rail - Black G36 carry handle style top rail with rear Picatinny optics mount. This is designed to have the styling of the Iconic G36 carry handle optic rail with the flexibility of a simple pic rail so you can...HKP-19201$349.95 -
Out Of Stock
B&T HK G36/SL8 (5.56/.223) Rail w/ Flip Up Sights
B&T Brugger & Thomet
$359.95Swiss Made B&T G36 Picatinny Mounting Rail With Emergency Back-up Sights B&T Switzerland is an HK OEM manufacturer and produce top quality accessories for military and law enforcement around the world. This is a military grade part! Compatible...HKP-16894$359.95 -
H&K 93/53/33 (5.56 / .223) Magazine Clamp - Used
H&K Heckler & Koch
$79.95HK 93, HK 33 & HK 53 Magazine Clamp - Used German HK dual mag clamp for all HK 93/33/53 magazines. HK Factory German manufacture and the real deal. Holds two magazines together for easy access and ease of use. Compatible with: All 25, 30, 40...HKP-21061$79.95 -
H&K G36/SL8 (5.56/.223) Ejector Spring
H&K Heckler & Koch
$35.95HK G36 & SL8 Series Ejector Spring - HK German This is a great item to have on hand as this part is prone to wear and breakage.HKP-01867$35.95 -
H&K HK MR556/MR223 Upper Receiver w/ F/A & Ejection Door
H&K Heckler & Koch
$694.95New HK German Partially Pre-Assembled MR556/MR223 Upper Receiver Each unit comes just as shown with the F/A (forward assist) assembly and ejection port door assembly installed from the HK factory. Compatible With: HK MR556 HK MR223 HK...HKP-16950$694.95 -
H&K HK SL8/G36 Gas Piston Rod Spring Assembly
H&K Heckler & Koch
$69.95HK German G36 & SL8 Gas Piston Rod Spring Assembly Great for spare parts or to use on that HK SL8-G36 conversion. This is a high-wear item and a must-have spare part. Compatible With: SL8-6, SL8-1 G36E, G36 full sizeHKP-02000$69.95 -
HK G36/SL8 Extractor
USA
$67.95G36 & HK SL8 Extractor For Bolt Head This is a great item to keep as a spare. Compatible With: All G36 variants SL8-1, SL8-6HKP-18882$67.95 -
HK SL8, HK G36 Full Size Aftermarket Complete Bottom & Side Rail Set - Black
USA
$69.95HK SL8/G36 Full Size Aftermarket Bottom & Side Rail Set Complete Comes with the bottom and 2 side rails (left and right) as well as the screws and allen wrench. Made of aircraft-grade aluminum and laser marked for easy number identification. New and...HKP-00633$69.95 -
HKP HK G36/SL8 (5.56/.223) Aftermarket Side Rail Left Or Right
HKP HK Parts
$25.95G36 & HK SL8 Aftermarket Side Rail Left Or RightHKP-00286$25.95 -
On Sale
Magpul AR-15 Buffer Tube Sling Attachment Point
Magpul
Now: $20.95Was: $30.00Magpul Industries ASAP- Ambidextrous Sling Attachment Point Sling Mount Black For HK MR556, HK 416, & AR15 Style Rifles - US Made The ASAP Ambidextrous Sling Attachment Point allows a range of motion greater than 180 degrees, enabling ambidextrous...HKP-13726Now: $20.95Was: $30.00 -
MFI PTR G28 Style Flash Hider - Threaded 5/8x24
MFI
$79.95HK G28 STYLE FLASH SUPPRESSOR / MUZZLE BRAKE / BARREL EXTENSION - NEW STYLE Threaded for 2016 & later PTR production models & other 5/8 X 24 threaded barrels The G28 2nd Gen latest style flash hider is threaded 5/8 X 24 pitch, which is a...HKP-17940$79.95 -
MI HK93/33 M-LOK Handguard - Black
MI Midwest Industries
$175.95MI HK93/33 M-LOK Handguard - Black Brand new Midwest Industries M-LOK handguard for your HK93, HK33, G3K or similar clone. This is also the correct forearm to use on PTR models that use a shorter 9" length or carbine length forearm. Features: Made in...HKP-18440$175.95 -
B&T HK G36, HK SL8 Quad Rail Handguard - Black
B&T Brugger & Thomet
$379.95B&T Handguard Quad Rail For HK G36, SL8 New B&T Swiss manufactured G36, SL8 quad rail system. Each unit comes with the complete quad rail as well as the rail covers and sling swivel for a sling. The B&T offering is the finest G36 quad rail...HKP-16897$379.95 -
Out Of Stock
GSG9 HK G36 FBI 0,1 Lower Complete
GSG9
$0.00HK GSG9 G36, G36K, G36C - FBI (0,1) Lower New HK US FBI (0,1) G36 lower complete with internals. This is also a popular item for use on the SL8 to G36 conversions. Please note: Do NOT dry fire.HKP-20181$0.00 -
Out Of Stock
H&K 416A5 RAL 8K Stripped Upper Receiver
H&K Heckler & Koch
$0.00HK German Un-Assembled Stripped HK 416A5 Upper Receiver - RAL 8K Brand new factory German RAL8000 416A5 upper receiver. Compatible With: HK MR556 HK MR223 HK 416 Looking for a matching lower for your build? STS416 A5 LOWER - Specialized Tactical...HKP-18787$0.00 -
H&K 53/51 (5.56 / .223) Vented Handguard - Horizontal
H&K Heckler & Koch
$119.95HK German HK 53, HK 51 Vented Hand Guard - Horizontal Style This handguard is vented on all three sides to promote barrel cooling as well as provide an aggressive grip hold and look. Compatible With: HK 53 HK 51 V53, C93 Other HK53, HK51...HKP-01776$119.95 -
H&K HK G36/SL8 Complete Recoil Rod Assembly
H&K Heckler & Koch
$49.95Recoil Rod Assembly for HK G36 & SL8 New HK factory German G36/SL8 (fits all variants of SL8/G36) recoil rod assembly complete. Great for replacement or for a spare as these have been hard to find.HKP-01057$49.95 -
H&K HK MR556/416 Battle Grip Storage Cap
H&K Heckler & Koch
$29.95H&K HK MR556/416 Battle Grip Storage Cap HK German MR556, HK416 battle grip storage grip. This is the replacement grip plug for the bottom of the HK battle grip. *Does not fit for the HK416 .22LR models**HKP-15251$29.95 -
H&K HK MR556/416 Operators Manual
H&K Heckler & Koch
$39.95New Latest Print Production HK German 416 & MR556 Operators Manual Each manual is 62 pages and is the go to resource to maintain, clean, and become well versed with the HK 416 and MR556 series of weapon systems.HKP-00054$39.95 -
H&K HK MR556/416 Roll Pin for Catch On Bolt Carrier
H&K Heckler & Koch
$6.95H&K HK MR556/416 Roll Pin for Catch On Bolt Carrier This roll pin is used in the bolt carrier to secure the catch.HKP-16847$6.95 -
$79.95 -
HK G36/SL8 (5.56/.223) Cocking Handle Axle Pin
$10.95HK G36, SL8 Cocking Handle Axle Pin - US Made This is the rivet pin that is used to attach the swiveling cocking handle to the body of the carrier. These can be replaced as they break and wear. Compatible With: HK G36 models HK SL8 modelsHKP-18367$10.95 -
HKP AR-15 Commercial Buffer Tube
HKP HK Parts
$24.95AR-15 Commercial Buffer Tube Features: Made From T7 7075 Aircraft grade aluminum Made in the USA 6 Position Each features a highly polished inside tube Black Mil-spec triple hard coat teflon anodized finishHKP-02728$24.95 -
HKP HK G36K, HK G36C Side Rail - Black
H&K Heckler & Koch
$24.95HK Aftermarket G36K/G36C Side Rail For Handguard This will fit the sides (left or right) of the forearm on the G36K and G36C forearms. Comes with all mounting hardware. Each rail is sold individually.HKP-00273$24.95 -
On Sale
HKP HK33 11" RH Cocking Tube
HKP HK Parts
Now: $74.95Was: $99.95HKP HK33 11" Right Hand Cocking Tube This is the one and only right handed cocking tube for the HK33 cocking tube made in the US. Made to the exact HK specifications as the factory HK33 German cocking tube. Overall length is 11".HKP-18692Now: $74.95Was: $99.95 -
PWS Primary Weapons Systems HK 416 FSC556 Tactical Compensator
Primary Weapon Systems
$89.95FSC556 Tactical Compensator (Muzzle Brake) Compensator The PWS FSC556 has the very best compensation and decrease in muzzle rise. Combine that with enough flash suppression to keep the flash out of your optics and line of sight. Not to mention...HKP-01647$89.95