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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Out Of Stock
F5 MFG 50 Round AR-15 Skeletonized Drum Magazine
F5 MFG
$189.9550 Round Drum - AR15, M4 - Skeletonized The F5 AR15 Skeletonized Drum is one if not the most compact and versatile 50 round magazines ever produced for the AR-15 in 5.56, .223 & 300 AAC Blackout. Designed and built primarily from aluminum and steel,...HKP-16554$189.95 -
FMP HK G3 Manual
$149.95FMP HK G3 Manual English-translated manuals for the Factory FMP G3 are available now. This is a rare collector's piece and the perfect item for those aiming to assemble a complete FMP G3 parts kit with an authentic factory manual. The cover is inscribed...HKP-21542$149.95 -
Out Of Stock
Franklin Armory / HKP FA HK MP5 Trigger Group – 2 Round Engraved Binary Housing - RAL 8K
FA Franklin Armory / HKP
$1,499.95COMING SOON! Franklin Armory BFSIII HK-C1 – Trigger Group - RAL 8K 3 Position 2 round burst style Engraved Pictograph – HK Binary Trigger Group Our latest and greatest Binary trigger group freshly delivered with a factory HK German housing...HKP-21160$1,499.95 -
G3 Incomplete Backplate
H&K Heckler & Koch
$29.95G3 Incomplete Backplate Factory German G3 refinished backplate. This backplate was fully reconditioned and Parkerized for a factory look. A great replacement or spare to have around to replace your broken or worn out backplates. Don't forget to get a new...HKP-20859$29.95 -
On Sale
G36 Handguard HK German Original Style - Gray - Incomplete - Used
Now: $24.95Was: $49.95G36 Handguard HK German Original Style - Gray - Incomplete - UsedHKP-19773Now: $24.95Was: $49.95 -
Out Of Stock
German HK53 A2 Navy Parts Kit Complete - Used
H&K Heckler & Koch
$0.00HK German HK53 A2 Factory Parts Kit Complete Less Demilled Receiver. Each Parts Kit Includes:HK German Desirable 1/7 Twist Factory Cold Hammer Forged BarrelHK Ambidextrous SEF or Navy Trigger Group (Your Choice Of Lower)Factory HK 53 Wide Forearm (not...HKP-01125$0.00 -
On Sale
Glock 19 +5 Magazine Extension Kit - BLEMISHED
Now: $19.95Was: $34.95Glock 19 +5 Magazine Extension Kit - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Designed to fit all Glock 19 models from Gen 1-5...HKP-19224-BL-BNow: $19.95Was: $34.95 -
On Sale
Grayguns SIG P320 Adjustable Hybrid Trigger
Grayguns
Now: $62.95Was: $94.00Grayguns SIG P320 Adjustable Hybrid Trigger The Grayguns P320 Adjustable Hybrid Trigger is a drop-in, bar-stock, enhanced trigger for your SIG Sauer P320. Expect a reduced pull weight as compared to the factory curved or straight trigger. Includes...HKP-19751Now: $62.95Was: $94.00 -
Out Of Stock
GSG9 G36K Gas Piston Rod/Spring Assembly
GSG9
$59.95HK G36K Gas Piston Rod/Spring Assembly - USA New spring assembly that is a must have for spare parts or to use on that HK Sl8-G36 conversion. This is the proper length gas piston to be used for a 12.5" G36K style length gas block and barrel assembly...HKP-18249$59.95 -
Out Of Stock
H&K (5.56/.223) Factory Correct Flash Hider - Threaded 15x1 RH
H&K Heckler & Koch
$0.00H&K (5.56/.223) Factory Correct Flash Hider - Threaded 15x1 RH Fits all HK barrels. 15x1 The right-hand thread is the thread pitch. Perfect for the SL8 & G36 type conversions. Specifications: Threaded 15x1 RH Compatible With: HK 416/MR556 HK...HKP-00952$0.00 -
Out Of Stock
H&K (9mm & 5.56/.223) Unmarked Ambidextrous Housing - Push Pin
H&K Heckler & Koch
$0.00H&K (9mm & 5.56/.223) Unmarked Ambidextrous Housing - Push Pin This trigger housing is designed for use with MP5, 93, and 33 ambidextrous trigger packs, making it an ideal choice for those seeking versatility. Manufactured in Germany, this...HKP-02461$0.00 -
Out Of Stock
H&K +4 Roller 8.04mm - Used
H&K Heckler & Koch
$0.00HK German Roller +4 - Used - 8.04mm 8.04 mm locking roller, The proper roller size is essential for proper bolt gap. HK German Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to...HKP-19373$0.00 -
H&K / Hogue Mini Incursion OTF AUTO Knife 2.95" - Tanto Blade
Hogue
$229.95HK Knives by Hogue Mini Incursion OTF AUTO Knife 2.95" 154CM Black Tanto Plain Blade Heckler & Koch Knives are specially designed and built for the professional knife user. Whether you're military, law enforcement, rescue, first responder, or simply...HKP-21559$229.95 -
H&K 10 Round HK USP 9mm Floor Plate Standard - Black
H&K Heckler & Koch
$8.9510 Round HK USP 9mm Floor Plate Standard - BlackHKP-01477$8.95 -
H&K 10 Round HK USP 9mm Magazine Locking Plate
H&K Heckler & Koch
$9.95Magazine Locking Plate For USP 9mm Full Size Magazines Compatible With: USP 9mm 10 RoundHKP-01597$9.95 -
Out Of Stock
H&K 10 Round HK USPC .40 S&W Flat Floor Plate Magazine - Black
H&K Heckler & Koch
$0.00H&K 10 Round HK USPC .40 S&W Flat Floor Plate Magazine - Black New German HK 10 round floor plate flat style for low profile. Compatible With: HK USP Compact 40 S&W HK USP Compact 357 SIG HK P2000 40 S&WHKP-01197$0.00 -
Out Of Stock
H&K 10 Round P7M10 .40 S&W Magazine - Black
H&K Heckler & Koch
$0.00New HK German P7 M10 40 cal 10 Round Magazine. Rare And No Longer In Production.HKP-00300$0.00 -
H&K 10 Round USP 40 Full Size Magazine Locking Plate - Black
H&K Heckler & Koch
$9.95H&K 10 Round USP 40 Full Size Magazine Locking Plate - Black Compatible With: USP .40 10 RoundHKP-02361$9.95 -
Out Of Stock
H&K 11E (7.62x51/.308) Bolt Carrier
H&K Heckler & Koch
$899.95HK 11E bolt carrier HK21E to HK11E bolt carrier used to convert an HK21E to an HK11E to accept HK91/G3 style magazines. This is the HK11E bolt carrier only. Includes: HK 11E Bolt Carrier Last units no longer made- these were the LAST units HK Germany...HKP-16492$899.95 -
Out Of Stock
H&K 11E (7.62x51/.308) Bolt Group Complete
H&K Heckler & Koch
$0.00HK11E Bolt Group Complete This is the complete bolt group for an HK German HK11E. Now out of production and rare. Includes the following: HK11E bolt carrier complete HK11E bolt head complete HK11E firing pin HK11E firing pin spring HK11E locking piece...HKP-00585$0.00 -
Out Of Stock
H&K 11E Magazine Exchange Kit
H&K Heckler & Koch
$0.00HK 11E Magazine Exchange Kit- AS SHOWN HK21E to HK11E conversion kit to convert an HK21E to an HK11E to accept HK91/G3 style magazines. Converts from belt fed to a magazine fed on one platform of firearm. Includes: HK 11E Bolt Carrier Group Complete (no...HKP-02112$0.00 -
Out Of Stock
H&K 12 Round HK USP/Mark 23 .45 ACP Magazine Body - Black
H&K Heckler & Koch
$0.00H&K 12 Round HK USP/Mark 23 .45 ACP Magazine Body - Black New HK German 12 round all steel magazine housing. Compatible With: HK USP .45 HK Mark 23HKP-16646$0.00 -
Out Of Stock
H&K 21 (7.62x51/.308) Bolt Head Complete
H&K Heckler & Koch
$0.00HK21 Bolt Head Complete New HK contract FMP HK21 production bolt head complete. HK21 parts are no longer in production making these new parts exceptionally rare. All are date coded 1985 last year they were in production. HK21 Bolt Head Complete: Bolt...HKP-01741$0.00 -
Out Of Stock
H&K 21 (7.62x51/.308) Firing Pin
H&K Heckler & Koch
$0.00HK German 21 Firing Pin - Old Stock Compatible With: HK21HKP-00546$0.00 -
Out Of Stock
H&K 21 3 Position Trigger Housing - RARE
H&K Heckler & Koch
$0.00H&K 21 3 Position Trigger Housing - RARE This rare 3 position trigger housing features Mexico markings and is designed specifically for the HK21. It is a unique find, never before offered, and has never been available with this...HKP-19394$0.00 -
Out Of Stock
H&K 21/21E/23E/PSG1/MSG90 German Firing Pin Spring
H&K Heckler & Koch
$0.00HK German HK21E, HK23E Firing Pin Spring A must-have spare and replacement part. No longer in production. Compatible With: HK21E HK23E HK11E HK13 E HK21 HK MSG90 HK PSG1HKP-00816$0.00 -
H&K 21E (7.62x51/.308) Cartridge Guide
H&K Heckler & Koch
$999.95HK German 21E Cartridge Guide Complete Brand new HK German .308 HK21E feed mech cartridge guide.HKP-02431$999.95 -
Out Of Stock
H&K 21E (7.62x51/.308) Feed Mechanism - Incomplete
H&K Heckler & Koch
$0.00HK21E Partial Feed Mechanism. Comes complete minus the top shelf & pin as shown. New HK date coded complete & German. We have been told these are the last units available.HKP-01019$0.00 -
H&K 21E (7.62x51/.308) Feed Mechanism Roller Axle
H&K Heckler & Koch
$64.95HK 21E & 23E Series Feed Mechanism Roller AxleHKP-02062$64.95 -
Out Of Stock
H&K 21E/23E (7.62x51/.308) & (5.56/.223) Barrel Case w/ Sling - 18 inch Barrels
H&K Heckler & Koch
$0.00HK German 21/23 Barrel Carrying Case W/ Sling (All Steel Heavy Duty) For All HK21/23 17.75 (18&) Inch Barrels. Rare and now out of production.HKP-00586$0.00 -
Out Of Stock
H&K 21E/23E (7.62x51/.308) & (5.56/.223) Barrel Case With Sling - 22 inch
H&K Heckler & Koch
$0.00HK German 21/23E Barrel Case With Sling (All Steel Heavy Duty) For All HK21/23E - 22 Inch BarrelsHKP-01151$0.00 -
Out Of Stock
H&K 21E/23E (7.62x51/.308) & (5.56/.223) Bipod
H&K Heckler & Koch
$0.00HK 21 Bipod NEW HK German- NEW HK German HK21 old style bipod. Fits all HK21, 11,13 and HK21/23E's. No longer in production these are the last units HK made and will have available. Last call.HKP-00565$0.00 -
Out Of Stock
H&K 21E/23E (7.62x51/.308) & (5.56/.223) Extractor Cylindrical Pin
H&K Heckler & Koch
$0.00HK 21E, HK 23E Extractor Cylindrical Pin This part holds the extractor in place on the bolt head. A great spare to have on hand.HKP-00863$0.00 -
Out Of Stock
H&K 21E/23E (7.62x51/.308) & (5.56/.223) Factory Brass Catcher
H&K Heckler & Koch
$0.00HK21E & HK23E Factory Brass Catcher- New HK German HK21E and HK23E brass catcher with quick release system for taking the unit on and off in a snap. Compatible With: HK23E HK21E MM23E & MM21E modelsHKP-00814$0.00 -
Out Of Stock
H&K 21E/23E (7.62x51/.308) & (5.56/.223) Factory Ejector Lever
H&K Heckler & Koch
$0.00New HK21E, HK23E Factory German HK Ejector Lever Perfect for spare parts and for upgrading the MM guns and other clones with the factory HK ejector lever. Compatible With: HK 21E HK 23E HK 11E HK 13E MM23E, MM21EHKP-01234$0.00 -
Out Of Stock
H&K 21E/23E (7.62x51/.308) & (5.56/.223) Forward Assist
H&K Heckler & Koch
$0.00HK21E & HK23E Forward Assist Compatible With: HK 21 HK 21E HK 23E HK 11 HK 13HKP-00247$0.00 -
Out Of Stock
H&K 21E/23E (7.62x51/.308) & (5.56/.223) Latest Production Bipod
H&K Heckler & Koch
$0.00New HK German 21/23E Latest Production Bipod No longer in production or available. Compatible With: Older HK21's MM23 MM11 MM13 as well as other HK21-type buildsHKP-00563$0.00 -
H&K 21E/23E (7.62x51/.308) & (5.56/.223) Steel Recoil Rod Guide Ring
H&K Heckler & Koch
$19.95HK 21E & HK 23E Recoil Rod All Steel Guide RingHKP-02063$19.95 -
Out Of Stock
H&K 21E/23E(7.62x51/.308) & (5.56/.223) Backplate
H&K Heckler & Koch
$0.00HK Stock Back Plate for .308 rifles These HK21e back plates are no longer in production and continually more difficult to find in new condition.HKP-00241$0.00 -
Out Of Stock
H&K 21E/PSG1/MSG90 (7.62x51/.308) & (5.56/.223) Factory Extractor
H&K Heckler & Koch
$0.00HK21E, 11E, PSG1, MSG90 Factory German HK ExtractorHKP-00250$0.00