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
HKP/H&K UMP 9mm Conversion Kit - Threaded Barrel 1/2x28 - 3-Lug
HKP HK Parts
$999.95HKP/H&K UMP 9mm Conversion Kit - Threaded Barrel 1/2x28 - 3-Lug UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those who have already done the USC-UMP conversion. The total...HKP-02285$999.95 -
Out Of Stock
HKP/H&K UMP 9mm Conversion Kit -Threaded 1/2x28
HKP HK Parts
$679.95HKP/H&K UMP 9mm Conversion Kit -Threaded 1/2x28 9mm UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those that have already done the USC-UMP conversion. The conversion parts are drop in...HKP-02287$679.95 -
Out Of StockSale
HKP/H&K USP/T 9mm +5 Magazine Extension - Red - BLEMISHED
HKP HK Parts
Now: $19.95Was: $49.95HKP/H&K USP/T 9mm +5 Magazine Extension - Red - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This part is made in the USA out of aircraft grade...HKP-21109-RE-BNow: $19.95Was: $49.95 -
Hogue HK Exemplar Knife
Hogue
$189.95Hogue HK Exemplar Knife - FDE / Black Blade Features: Locking Mechanism: ABLE Lock® (Ambidextrous Bar Lock Enhanced) Frame: Flat Dark Earth G10 Deep Carry Pocket Clip (Right or Left Handed, Tip Up or Down Carry) Lanyard Hole Blade...HKP-21279$189.95 -
IMI 25 Round UZI Magazine - New Old Stock
IMI
$54.95Uzi 25 Round 9mm Magazine - IMI Licensed - Mec-Gar Manufacture Made in Italy by the renowed Mec-Gar magazine manufacturing company with IMI Licensing. An all steel production and a blued finish to help protect it against rust. These are the last...HKP-21232$54.95 -
Sale
JMAC G36 Compensator 15F KeyMount (KeyMicro)
JMAC Customs
Now: $67.95Was: $99.95JMAC G36 Recoil Reduction Device - 2 Port Compensator 15-1 Threads - KeyMount (KeyMicro) Can be permanently attached to a 14.5" barrel to achieve 16" OAL. Features: 15-1 Threads - Fits G36C, G36K, HK33, any 15-1 threads that are more than 0.9" from the...HKP-21254Now: $67.95Was: $99.95 -
KDG HK MR556 13.75" M-LOK Rail System - Black
KDG Kinetic Development Group
$399.95Rail System - 13.75? - Black - M-LOK - HK MR556 The New KDG HK 556 M-LOK rails are direct mount rail system, replacing the factory HK 556 rail systems. These new rails are identical in design to their big brother, the KDG HK 762 M-LOK Rail system. Like...HKP-19244$399.95 -
Sale
Kinetic Development Group Sidelok Aimpoint Micro Mount - HK Logo - BLEMISHED
KDG Kinetic Development Group
Now: $66.95Was: $138.95Kinetic Development Group Sidelok Aimpoint Micro Mount - HK Logo - BLEMISHED THIS IS A BLEMISHED ITEM THAT IS COSMETIC ONLY. THIS ITEM IS SOLD AS IS AND NOT ELIGIBLE FOR A RETURN. The Sidelok is a revolutionary new mounting system for optics. The...HKP-19065-BNow: $66.95Was: $138.95 -
Out Of Stock
Lazy Wolf Guns HK VP9 F2 Trigger – Black
Lazy Wolf
$139.95Lazy Wolf Guns HK VP9 F2 Trigger – Black In a collaboration with Lazy Wolf Guns, HK Parts offers the finest drop-in, aftermarket triggers for your HK VP9 & VP40 handguns. Features: Made in the USA True drop-in installation using the factory...HKP-20823$139.95 -
Out Of Stock
Lazy Wolf Guns HK VP9 F3 Trigger - Bronze
Lazy Wolf
$139.95In a collaboration with Lazy Wolf Guns, HK Parts is offering aftermarket triggers for your HK VP9 & VP40 handguns. The drop in VP9 series trigger is the best trigger ever developed after more than a year of testing and evaluation. Manufactured from...HKP-20803$139.95 -
Magpul 50 Round AR 7.62 D50 LR/SR GEN M3 308 PMAG
Magpul
$149.95Magpul Industries, Magazine, PMAG D-50, 308 Win/762NATO, 50Rd, Fits DPMS/SR25/LaRue OBR, Black Finish The Magpul PMAG D-50 is a rugged, lightweight, and reliable 50-round polymer drum magazine designed for 7.62x51 NATO/.308...HKP-19516$149.95 -
Magpul HK MP5 Adapter Brace with Stock
Magpul
$189.95Magpul HK MP5 Adapter Brace with Stock MP5 DT Magpul stock ready to install on any in-spec MP5 receiver or clone. We take our AR MP5 Adapter and attach it onto a mil-spec buffer tube before combining it with the new Magpul DT Carbine stock. This is a...HKP-21402-M$189.95 -
Magpul HK MP5K Adapter Brace with Stock
Magpul
$199.95Magpul HK MP5K Adapter Brace with Stock MP5K DT Magpul stock ready to drop in on any in-spec MP5K receiver or clone. We take our AR MP5K Adapter and attach it onto a mil-spec buffer tube. We then drop it on to the new Magpul DT Carbine stock. This is a...HKP-21412-M$199.95 -
Sale
Match Weight - Steel With Picatinny Rail - HK P30
Now: $227.95Was: $349.95Match Weight - Steel With Picatinny Rail - HK P30 Take your P30 to the next level with our Steel Compensator offered in (2) styles, with and without picatinny rail. The 2 piece compensator attaches with ease and only takes a...HKP-19875Now: $227.95Was: $349.95 -
Sale
Match Weight - Steel With Picatinny Rail - HK VP9
Now: $229.95Was: $349.95Match Weight - Steel With Picatinny Rail - HK VP9 Take your VP9 to the next level with our Steel Compensator offered in (2) styles, with and without picatinny rail. Each Match Weight Compensator is CNC machined in our factory...HKP-19882Now: $229.95Was: $349.95 -
Sale
Match Weight HK P30 w/o Picatinny Rail - Black
Match Weight
Now: $229.95Was: $349.95Match Weight HK P30 w/o Picatinny Rail - Black Take your P30 to the next level with our Steel Compensator offered in (2) styles, with and without picatinny rail. The 2 piece compensator attaches with ease and only takes a...HKP-19876Now: $229.95Was: $349.95 -
Match Weight HK VP9 w/ Picatinny Rail - Black
Match Weight
$194.99Take your VP9 to the next level with our Aluminum Compensator offered in (2) styles, with and without picatinny rail. Each Match Weight Compensator is CNC machined in our factory outside Chicago, IL to extremely precise tolerances. The 2 piece...HKP-19873$194.99 -
Sale
Meprolight Universal Sight Installation Tool
Meprolight
Now: $498.95Was: $589.95Meprolight Universal Sight Installation Tool THIS PRODUCT HAS BEEN DISCONTINUED AND WE HAVE JUST A FEW LEFT. ONCE THEY ARE GONE, THEY ARE GONE FOR GOOD. This a perfect tool for gunsmiths. Each tool will allow accurate and factory-correct...HKP-02586Now: $498.95Was: $589.95 -
Out Of Stock
MFI MP5K 9mm Barrel Extension/Faux Suppressor - 3-lug
MFI
$179.95MFI MP5K 9mm Barrel Extension/Faux Suppressor - 3-lug Each faux suppressor is designed to attach to the 3 lug MP5K 3 lugged barrel and can be permanently attached (blind pinned) in place to get the overall length of 16.25"overall. Perfect for that rifle...HKP-18007$179.95 -
Sale
MI HK MR556/416 M-LOK Compatible 13." Carbine Handguard - BLEMISHED
MI Midwest Industries
Now: $199.95Was: $269.74MI HK MR556/416 M-LOK Compatible 13." Carbine Handguard - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Features: Made in the USA Simple...HKP-18437-BNow: $199.95Was: $269.74 -
MI/HKP HK MP5 Alpha Folding Stock
MI Midwest Industries
$419.95Midwest Industries/HKP HK MP5 Alpha Folding Stock Brace Adapter The Midwest Industries Alpha folding stock paired with the HK Parts Picatinny rail adapter offers unparalleled versatility. Adjust your length of pull, cheek riser, and butt pad to your...HKP-21512-M$419.95 -
Out Of Stock
Michaels Machines HK USC/UMP 9mm Semi Auto Bolt Carrier - Incomplete
Michaels Machines
$499.95HK UMP 9mm - Semi-Auto Bolt Stripped The semi-auto bolt is required for HK USC to HK UMP caliber conversions. The full-auto bolt carrier will not work in HK USC rifles. Features: Tungsten filled Heat treated Parkerized & polished Marked 9X19mm just...HKP-19871$499.95 -
Out Of Stock
MKE HK 93/33 (5.56/.223) Forearm - Green
MKE
$99.95HK 93, 33, 33K & Z43 Green Forearm New MKE production HK 33/93 & Z43 length forearm in green.HKP-17967$99.95 -
Out Of Stock
$44.95 -
Out Of Stock
MM HK 21 (7.62x51/.308) Trunnion
H&K Heckler & Koch
$0.00US Made HK21 Trunnion By Michael's Machine (MM) These are the finest US-made trunnions available on the market.HKP-00246$0.00 -
Out Of Stock
MM HK 21E (7.62x51/.308) Belt Box
Michaels Machines
$599.95HK21E & MM21E Belt Box Brand new HK21E, MM21E US made feed box. The German units have long since been out of production. These are exact replicas of the German units. Made in the USA. Compatible With: MM21E HK21EHKP-17752$599.95 -
MM HK 21E/23E/MSG90 (7.62x51/.308) & (5.56/.223) Railed Scope Mount
Michaels Machines
$837.95HK21E/23E Or MSG90 Quick Release Full Picatinny Rail Scope Mount This is the finest HK scope mount you can get if you want to use a Picatinny-style mounting platform. Made in the USA of the best material to factory HK specs. First time offered and...HKP-01923$837.95 -
MM HK 23E (5.56/.223) Belt Box
Michaels Machines
$599.95HK23E & MM23E Belt Box Brand new HK23E, MM23E US made feed box. The German units have long since been out of production. These are exact copies of the German units. Made in the USA. Compatible With: MM23E HK23EHKP-17579$599.95 -
Out Of Stock
MM HK 23E (5.56/.223) Complete Feed Mechanism
Michaels Machines
$3,999.95MM HK 23E (5.56/.223) Complete Feed Mechanism New US manufactured HK23E feed mechanism complete with top plate and push pin. The complete unit a great spare to have on hand. Compatible With: Factory HK23E and MM23E firearmsHKP-17578$3,999.95 -
Out Of Stock
MM HK 23E (5.56/.223) Heavy Rifle Barrel
Michaels Machines
$0.00MM HK 23E (5.56/.223) Heavy Rifle Barrel Brand new US-made custom rifle barrel. Quick change HK23E, MM23E or HK13 Barrel. A must-have spare for your HK rifle or MG. Factory Barrels are hard to find and expensive, but these barrels are of great...HKP-02513$0.00 -
Out Of Stock
MM HK 23E (5.56/.223) Light Rifle Barrel
Michaels Machines
$0.00HK 23E (5.56/.223) Light Rifle Barrel Brand new US-made custom rifle barrel. 17.75-inch barrel includes the flash hider and the factory-correct barrel handle 1 x 9 twist. This has a lighter profile to save on weight...HKP-02514$0.00 -
MP5K PDW German Parts Kit - 4 Position Trigger Group
$8,999.95MP5K PDW German Parts Kit: Rare and ultra desirable MP5K PDW parts kit. In good to like new condition with a factory marked HK folding stock and the ultra desirable 4 position 0, 1 , 3 , F burst trigger group , 3-lug threaded barrel (1/2 x 32...HKP-20759$8,999.95 -
MR762 German E2 Concave Butt Pad With Bowden Retaining Wire - HKP
H&K Heckler & Koch
$69.95MR762, 417 German E2 Concave Butt Pad With Bowden Retaining Wire Harness This item can be added as an option on the HK MR762 & HK712/G28 E1/E2 stock. Provides an option to use either the concave or convex style buttpads for different mission...HKP-17687$69.95 -
Odin Holsters HK VP9SK Comp Weight™ Compensator LH Holster - Black
Odin Holsters
$79.95Odin Holsters HK VP9SK Comp Weight™ Compensator LH Holster - Black The VP9SK Comp Weight™ Compensator holster is an outside the waistband that allows the HK Parts Comp Weight™ to be installed as well. For a left-hand shooter with or...HKP-18845$79.95 -
Odin Hoslters HK VP40 LH Appendix IWB Holster
$79.95Appendix Holster - IWB - Left Hand - HK VP40 This is an inside the waistband holster. Each holster is made by hand and is made for use with the HK VP40. Custom molded using a vacuum former for perfect fit and adjustable retention. Great for long...HKP-19657$79.95 -
Omega HK UMP Rear Sight Complete
OMEGA
$39.95Omega HK UMP Rear Sight Complete: A great replacement rear sight kit for your UMP. All you need to fully replace your worn out rear sight. Made by Omega for their Gideon Shadow receiver but compatible with other UMP clones.HKP-21266$39.95 -
Sale
Promag 12 Round HK USP .45 ACP Magazine - Black - BLEMISHED
Promag
Now: $23.95Was: $36.95Promag 12 Round HK USP .45 ACP Magazine - Black - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Made in the US by Promag. Compatible With: USP .45...HKP-02090-BL-BNow: $23.95Was: $36.95 -
PTR PDW (7.62x39) & (7.62x51/.308) Semi-Auto Bolt Carrier
PTR
$260.95US-Made PTR PDW Semi Auto Carrier Made by PTR using the same blueprints and materials the German HK factory uses, has allowed PTR91 to manufacture the finest of HK-style firearms here in the US. The PDW semi-carrier is another example of superior...HKP-14140$260.95 -
PTR PDW (7.62x51/.308) 9 inch Barrel
PTR
$189.99PTR PDW .308 Pistol or SBR Barrel- USA This part comes new in the white, never installed, and ready for the HK project. Features: Just under 9" inches long 1:10 twist U.S. made barrel counts as one 922r compliant part Please Note: PTR barrels have...HKP-02788$189.99 -
Sale
Raddlock HK 91/G3 (7.62x51/.308) Magazine Block - 10 Round - BLEMISHED
Raddlock
Now: $5.95Was: $9.95Raddlock HK 91/G3 (7.62x51/.308) Magazine Block - 10 Round - BLEMISHED BAD FINISH. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This plug is...HKP-02443-BNow: $5.95Was: $9.95