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 HK UMP (9mm) Semi Auto Bolt
HKP HK Parts
$369.95HK UMP 9mm -Semi-Auto Bolt Group The semi-auto bolt group is required for HK USC to HK UMP caliber conversions. The full-auto bolt carrier will not work in HK USC rifles. Includes: Extractor Firing pin Retaining Pin Firing pin &...HKP-18752$369.95 -
Out Of Stock
HKP HK UMP (9mm) Standard Barrel
HKP HK Parts
$299.95HK UMP 9mm Barrel US made replica of the HK UMP 9mm barrel. Counts as one US made compliant part as an added bonus.HKP-18640$299.95 -
Sale
HKP HK UMP .45 ACP Magazine Block - BLEMISHED
HKP HK Parts
Now: $5.95Was: $9.95HKP HK UMP .45 ACP Magazine Block - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. UMP mag block plug to limit the magazine capacity to 10 rounds for...HKP-18171-BNow: $5.95Was: $9.95 -
HKP HK UMP, HK USC, HK G36 Hand Stop Complete - Black
HKP HK Parts
$49.95Hand Stop Complete - USA - UMP, USC & G36 Compatible With: USC UMP G36K G36CHKP-19236$49.95 -
HKP HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B Sling Pin
HKP HK Parts
$49.95HKP HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B Sling Pin The original thumb screw version for all stock block B's.HKP-21504$49.95 -
Out Of Stock
HKP HK USC (.45 ACP) Carbine Mag Release - Extended
HKP HK Parts
$24.95HK USC Alloy Mag Release - ExtendedBilleted alloy USC magazine release. This is a very common repair & replacement part as they are fairly easy to break on the USC lower. With this new metal mag release you get more surface area as well as a much...HKP-17918$24.95 -
HKP HK USC, HK UMP Cocking Handle Assembly
HKP HK Parts
$149.95HKP HK USC, HK UMP Cocking Handle Assembly Includes: Steel cocking handle Support spring Cocking lever support Set screwHKP-19155$149.95 -
Out Of Stock
HKP HK USP Older Style Titanium Firing Pin - Black
HKP HK Parts
$59.95HK stopped making or supporting the older/original style USP firing pin. In an effort, to support all of HK's customers we now offer our "enhanced" titanium firing pin to use in your original USP that has not been updated to HK's "newer" style firing...HKP-01287$59.95 -
HKP HK VP9 Optics Plate #12 - AimPoint ACRO Optic Mount - Aluminum
HKP HK Parts
$49.95HK VP9 Series Optics Ready #12 - Aimpoint ACRO - Optic Mount - Aluminum The finest all aluminum mounting solution for your HK VP9 series optic ready model. Each unit comes with 2 T20 steel torx plus screws for mounting the optic plate to your slide...HKP-21510$49.95 -
Out Of Stock
HKP HK VP9, HK P30 Magazine Extension Kit +10 - Cerakote Black
HKP HK Parts
$69.95Magazine Extension Kit +10 – Cerakote Black - HK VP9, HK P30 This listing is for the magazine extension ONLY. This is not a complete magazine. The referenced magazine capacity is the...HKP-21250$69.95 -
HKP HK VP9/P30 +5 Magazine Extension Kit
HKP HK Parts
$34.95Magazine Extension Kit +5 - HK VP9SK, HK P30SK This listing is for the magazine extension ONLY. This is not a complete magazine. The referenced magazine capacity is the total capacity once the extension...HKP-20566-M$34.95 -
Sale
HKP HK VP9L Railok™ Threaded Barrel Compensator - BLEMISHED
HKP HK Parts
Now: $127.95Was: $189.95HK Parts Railok™ Mounting System Threaded Barrel Compensator: H&K VP9L COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The HK Parts Railok™...HKP-21263-BNow: $127.95Was: $189.95 -
HKP HK VP9SK Comp Weight™ Compensator w/ Rail Adapter - Black
HKP HK Parts
$184.95Comp Weight™ With Rail Adapter - VP9SK HK Parts VP9SK Comp Weight™/compensator with Rail Adapter Installed is the perfect addition to your HK VP9SK firearm with our low profile, aggressive Comp Weight™ that flows with the lines of the...HKP-18900$184.95 -
HKP HK VP9SK Comp Weight™ Compensator w/ Rail Adapter - Steel
HKP HK Parts
$189.95Comp Weight™ With Rail Adapter - VP9SK - Steel HK Parts VP9SK Comp Weight™/compensator with Rail Adapter Installed is the perfect addition to your HK VP9SK firearm with our low profile, aggressive Comp Weight™ that flows with the lines...HKP-21301$189.95 -
HKP HK33 11" LH Cocking Tube
HKP HK Parts
$99.95HKP HK33 11" Left Hand Cocking Tube This is the one and only left 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-18892$99.95 -
HKP HK45C Railok™ Threaded Barrel Compensator
HKP HK Parts
$189.95HK Parts Railok™ Mounting System Threaded Barrel Compensator: H&K HK45C The HK Parts Railok™ mounting system compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle...HKP-21264$189.95 -
Out Of Stock
HKP Magazine Catch - Latest Style
HKP HK Parts
$19.95New latest generation 1 piece 9mm mag catch. This factory correct part is the latest & greatest design & version.If you have issues with mags locking in place on clones or non-HK German firearms it may be that you need this important upgrade...HKP-17571$19.95 -
Out Of Stock
HKP MP5 .22 LR PDW 5 Position Telescoping Stock
HKP HK Parts
$349.95HK MP5 .22 LR PDW Telescoping - 5 Position Adjustable Stock Finally the most anticipated PDW style stock for the MP5 .22 LR ever developed. Made in the USA. The 5 position stock rails collapse along the top ridge of the grip frame for the lowest profile...HKP-18167$349.95 -
Out Of Stock
HKP MP5 .40 S&W RS Reverse Stretch Parts Kit
HK Parts, Heckler & Koch
$2,099.95MP5 .40 Reverse Stretch Pistol Build Kit Complete German & USA Made Parts MP5 .40 Reverse Stretch parts kit complete with all the parts needed for an MP5.40 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be...HKP-19819$2,099.95 -
Out Of Stock
HKP MP5 10mm Pistol Build Kit
HKP HK Parts
$2,199.95MP5 10mm Build Kit With Flat, Top Rail & Weldment Set HK Parts MP5 Build Kit is the best priced value available anywhere. There is a limited supply and they will be gone before you know it. The MP5 10mm parts kit comes complete with all the parts...HKP-18409$2,199.95 -
Out Of Stock
HKP MP5 40/10 4 Position (0,1,2,F) Ambi Burst Trigger Group
H&K Heckler & Koch
$0.00HKP MP5 40/10 4 Position (0,1,2,F) Ambi Burst Trigger Group MP5 40/10 4 Position (0,1,2,F) Ambidextrous burst trigger groupHKP-00677$0.00 -
HKP MP5 40/10 Bolt Head - Incomplete
USA
$179.95HK MP5 40/10 Bolt Head Incomplete Each bolt head will work and fit on a semi or full-auto MP5 40, 10mm pistol, or rifle. Each bolt head is made from a solid billet, hardened, and polished, just like the expensive and hard-to-find HK German MP5 40...HKP-02114$179.95 -
Out Of Stock
HKP MP5 40/10 Trigger Group 4 Position Navy Housing (0,1) - Safe/Semi Only - Clipped & Pinned
HKP HK Parts
$479.95HKP/H&K MP5 40/10 Safe & Semi Only Navy Style Trigger Group - Clipped & Pinned Introducing a cost-effective alternative to the high-priced and hard-to-find all-German HK FBI or 0,1 ambidextrous trigger group, now available in a 4-position...HKP-18399$479.95 -
Out Of Stock
HKP MP5, SP5 - PDW 5 Position Telescoping Stock
HKP HK Parts
$349.95HKP MP5, SP5 - PDW 5 Position Telescoping Stock Finally the most anticipated PDW style stock for the MP5 ever developed. Made in the USA. The stock rails collapse along the top ridge of the grip frame for the lowest profile stock ever produced for...hkp-17958$349.95 -
Out Of Stock
HKP MP5K 9mm 5 Position Telscoping Stock - PDWC - Extended Buttpad
HKP HK Parts
$369.95HK MP5K PDW Telescoping - 5 Position Adjustable Stock - Extended Buttpad Finally the most anticipated PDW style stock for the MP5K ever developed. Made in the USA. The stock rails collapse along the top ridge of the grip frame for the lowest profile...HKP-19003$369.95 -
Out Of Stock
HKP MP5K/SP89 9mm Trigger Group 3 Position Navy Housing 0,1- Safe, Semi Only
HKP HK Parts
$0.00HKP/H&K MP5K/SP89 9mm Safe & Semi Only Navy Style Trigger Group - Clipped & Pinned Finally, a lower-cost alternative to the expensive and hard-to-find all-German HK FBI or 0,1 ambidextrous trigger group, now available in a 3-position Navy...HKP-17240$0.00 -
Out Of Stock
HKP MP5K/SP89 9mm Trigger Group 4 Position Housing 0,1- Safe, Semi Only
HKP HK Parts
$0.00MP5K, SP89 Trigger Group 4 Position Housing 0,1- Safe, Semi Only Finally, a lower cost alternative to the spendy & hard to find all German HK FBI or 0,1 ambidextrous trigger group in a 4 position factory German HK housing. Now for the first time, we...HKP-17239$0.00 -
Out Of Stock
HKP MP5K/SP89/SP5K Shoulder Harness - Left Handed
HKP HK Parts
$179.95HK MP5K, SP89, SP5K Shoulder Harness - Left Handed New MP5K, SP5K or SP89 shoulder rig left handed for MP5K, SP5K & SP89 style weapon systems. Also fits clones & other HK MP5 style weapon systems with 2 spare magazine pouches that are integrated...HKP-01994$179.95 -
Out Of Stock
HKP MP5K/SP89/SP5K Shoulder Harness - Right Handed
HKP HK Parts
$179.95MP5K, SP5K, SP89 Shoulder Harness - Right Handed New MP5K, SP5K or SP89 shoulder rig right handed for MP5K, SP5K & SP89 style weapon systems. Also fits clones & other HK MP5 style weapon systems with 2 spare magazine pouches that are integrated...HKP-18021$179.95 -
Out Of Stock
HKP PTR PDW (7.62x51/.308) Complete Bolt Group
HKP HK Parts
$359.95US Made PTR Bolt Group Complete Semi-Auto 308. Factory correct bolt head and locking piece for use in the PTR PDW chambered in 7.62X51 or 308. Brand new May 2015 manufacture. This is the correct bolt for all PTR PDW with 8" barrels.HKP-17389$359.95 -
Out Of Stock
HKP PTR-32 (7.62x39) Complete Bolt Group
HKP HK Parts
$359.95US Made PTR 32 Bolt Group Complete Semi-Auto.Factory correct bolt head and locking piece for use in the PTR 32 chambered in 7.62X39. Brand new May 2015 manufacture. This is the correct bolt for all PTR 32 rifles with 12"and 16" barrels.HKP-17388$359.95 -
HKP Racerback - X-Small - Black
HKP HK Parts
$14.95HKP Racerback - X-Small - Black Get your hands on some of our premium new apparel! Featuring our sleek new logo printed over soft cotton, this racerback is certain to catch an eye at the range! Features: Female fit Fine cotton High fidelity DTG...HKP-21031-M$14.95 -
HKP Short KeyMod Quad Rail - Black
HKP HK Parts
$199.95MR556/416 KeyMod Qaud Rail - ShortHKP-17985$199.95 -
HKP Short Sleeve Tee Female - Cardinal
HKP HK Parts
$14.95HKP Short Sleeve Tee Female - Cardinal Get your hands on some of our premium new apparel! Featuring our sleek new logo printed over soft cotton, this shirt is certain to catch an eye at the range! Features: Female fit Fine cotton High fidelity DTG...HKP-21019-M$14.95 -
Out Of Stock
HKP SP5K Bench Mat
HKP HK Parts
$13.95HK MP5K, SP5K, SP89 Gunsmithing Bench Mat This isn't your ordinary gun cleaning mat. Show your pride for your HK SP5K firearm while using our high quality neoprene rubber backed and cloth topped gun cleaning mat to protect your gun bench, desk, kitchen...hkp-18213$13.95 -
Out Of Stock
HKP, Walther 416 .22LR PDWC Retractable Stock - Black
HKP HK Parts
$0.00HK 416C Style PDW Stock - HK, Walther .22 LR The long anticipated PDW style AR15/M4 Stock is now available for the HK 416 .22 models. Made in the USA. The best PDW stock design available in the smallest package. Ergonomic, easy to use and designed...HKP-17840$0.00 -
Out Of Stock
HKP/H&K 91/G3 (7.62x51/.308) Trigger Group - 3 Position - Navy Housing
HKP HK Parts
$579.95G3, 91, PTR Trigger Group 3 Position Navy Housing Introducing a cost-effective alternative to the high-priced and rare all-German HK FBI or 0,1 ambidextrous trigger groups. This semi-auto trigger group is available in a 3-position Navy factory German HK...HKP-17242$579.95 -
Out Of Stock
HKP/H&K G3K/33K (5.56/.223) & (7.62x51/.308) Extended 4 Prong Flash Hider - Threaded 15x1 RH
HKP HK Parts
$79.95HKP/H&K G3K/33K (5.56/.223) & (7.62x51/.308) Extended 4 Prong Flash Hider - Threaded 15x1 RH This fits any threaded 15x1 RH HK barrel. The overall length is 4.37 inches. These are the perfect length of the G3K and HK33K style builds as they will...HKP-00501$79.95 -
Out Of Stock
HKP/H&K UMP .45 ACP Barrel - Threaded 16x1 RH - 3-Lug
HKP HK Parts
$399.95HKP/H&K UMP .45 ACP Barrel - Threaded 16x1 RH - 3-Lug New USA made .45 ACP 8" barrel for the UMP or Omega firearms. Each barrel is threaded 16x1 RH and 3-Lug tipped. The finest barrel for the UMP .45 ACP on the market. Specifications: Overall Length...HKP-18511$399.95 -
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