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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HK P Series Hammer Axle
H&K Heckler & Koch
$54.95HK P Series Hammer Axle Compatible With These Models In 9mm, .40 S&W, & .357 SIG: HK P2000 HK P2000SK HK P30 HK P30L HK P30SKHKP-01797$54.95 -
HK P30, P30S .40 Barrel - Black
H&K Heckler & Koch
$274.95HK P30, P30S .40 Barrel - Black New HK German P30 standard factory length.HKP-02412$274.95 -
HK91, G3, PTR Folding Stock
Choate
$144.95HK 91, G3, PTR Side Folding Stock No gunsmith is needed as this is an easy install using your hardware from your existing fixed A2 stock. This counts as one US-made compliant part. Compatible With: HK 91 G3 PTR91 Also fits HK93 and 33-style rifles...HKP-00516$144.95 -
HKP .40 S&W Thread Protector - Threaded 9/16x24 RH
HKP HK Parts
$14.95HKP .40 S&W Thread Protector - Threaded 9/16x24 RH The HK Parts 9/16x24 Thread Protector is specifically designed for .40 S&W handgun barrels with 9/16x24 right-hand threading, compatible with HK, Glock, Sig, SW, and more. Essential...HKP-17032$14.95 -
On Sale
HKP Glock 17 Gen 4 Magwell - Black
HKP HK Parts
Now: $34.95Was: $47.96HKP Glock 17 Gen 4 Magwell - Black The perfect addition to your Glock 17 firearm, the HK Parts magwell will help keep the users hand in place while shooting. Installation is simple with an allen wrench, no gunsmithing required. Made in the USA. Ultra...HKP-19141Now: $34.95Was: $47.96 -
HKP Grip Panel, Left Side - Large - VP9SK - Grey
HKP HK Parts
$19.95HKP Grip Panel, Left Side - Large - VP9SK - Grey New HK German manufactured. Left side large size perfect for spare or for custom stippling projects. Drop-in part for your HK VPSK pistol. Compatible With: HK VP9SKHKP-18965$19.95 -
HKP HK G36C Forearm - FDE
HKP HK Parts
$109.95HK G36K Forearm With Hand Stop & Heat Shield New forearm with heat shield & hand stop fits all HK G36C's or SL8/G36 conversions sized for the G36C barrel. Each unit also features the hand stop with sling attachment points. Hard mounting...HKP-19302$109.95 -
HKP HK MP5 9mm 2 Position (0,1 Pictogram) FBI Style Trigger Housing
HKP HK Parts
$129.95US Made HK MP5 9mm 2 Position (0,1 Pictogram) FBI Style Trigger Housing This 922r compliant housing features a 2 position (0,1) pictogram. Specifications: 2 Position Pictogram Markings: 0,1 FBI Style Housing Compatible With: HK MP5HKP-20839$129.95 -
HKP HK MR556/416 Upper 8" 416C Style Conversion Kit
HKP HK Parts
$1,285.95MR556 & HK416 Upper Conversion Kit - 8" - HK 416C Style Finally an answer for all of those that have been wanting as close to the original, rare unicorn of a find HK 416C 8" barrel conversion kit for 416 or MR556. Each conversion kit upper or barrel...HKP-18629$1,285.95 -
HKP HK MR762 & HK 417 Rear Sight Drum
HKP HK Parts
$29.95HKP HK MR762 & HK 417 Rear Sight Drum Made in the USA.HKP-17776$29.95 -
Out Of Stock
HKP HK USPC/45C Titanium Firing Pin
HKP HK Parts
$49.95HKP HK USPC/45C Titanium Firing Pin A solid billet CNC offering at 40+% lighter than comparable steel firing pins. Our titanium firing pins travel faster in the slide, delivering a quicker lock time & enhancing accuracy. Titanium pins also carry less...HKP-17801$49.95 -
On Sale
HKP HK VP9SK Comp Weight™ Quick Detach Compensator - Brass
HKP HK Parts
Now: $119.95Was: $249.99HK VP9SK - Quick Detach Comp Weight™ / Compensator - Brass LIMITED EDITION! ONLY A SMALL NUMBER MADE The HK Parts VP9SK Comp Weight™ is the world's first quick detach Comp Weight™, compensator. That slides effortlessly onto your pistol...HKP-18186Now: $119.95Was: $249.99 -
HKP MP5 .40 S&W Pistol Build Kit
HKP HK Parts
$2,099.95MP5 .40 Pistol Build Kit Complete German & USA Made Parts MP5 .40 parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be legal as a pistol (N/A) rifle, or SBR...HKP-18405$2,099.95 -
HKP MP5K 40/10 Full Auto Bolt Carrier
HKP HK Parts
$149.95HKP MP5K 40/10 Full Auto Bolt Carrier Machined completely from billet ordnance steel. This carrier is made to the latest specs and is Tungsten filled, and heat treated providing the finest American made carrier available. Not to be confused with cheap...HKP-18362$149.95 -
On Sale
HKP MP5K/SP89/SP5K 9mm AR Stock Adapter - BLEMISHED
HKP HK Parts
Now: $64.95Was: $114.95HKP MP5K/SP89/SP5K 9mm AR Stock Adapter - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Each AR stock, brace adapter is made from a solid billet of...HKP-17138-BNow: $64.95Was: $114.95 -
Out Of Stock
HKP PTR-32 (7.62x39) Complete Bolt Group - PDW
HKP HK Parts
$359.95US Made PTR 32 PDW 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 PDW with 8" barrels.HKP-17387$359.95 -
HKP- ACR to SP5K Adapter
HKP HK Parts
$139.95HKP- ACR to SP5K Adapter We now offer the best option to convert the ACR Stock to be compatible with your MP5K, SP5K, SP89 and clones. Our new aircraft grade aluminum SP5K ACR adapter comes with a pre-installed folding stock buffer to make this a quick...HKP-20843$139.95 -
HKP/H&K P2000 9mm Dimpled Barrel - Threaded 13.5x1
HKP HK Parts
$229.95HKP/H&K P2000 9mm Dimpled Barrel - Threaded 13.5x1 Each barrel is expertly crafted from ordnance grade steel, heat treated, and finished with a premium nitride coating. The dimpled design adds aesthetic appeal, while the fitted O-ringed thread...HKP-18413$229.95 -
KDG HK MR762 14" M-LOK Rail System - Black
KDG Kinetic Development Group
$499.95KDG - M-LOK Rail System - 14" - Black - HK MR762 The HK 762 M-LOK rail is a direct mount rail system, replacing the factory HK 762 rail systems. The new rail utilizes the M-LOK system, is lighter, longer, and more ergonomic for the operator. The HK...HKP-19206$499.95 -
L.A.G Tactical HK VP9/SK Liberator MKII IWB/OWB Ambidextrous Holster
$59.95L.A.G Tactical HK VP9/SK Liberator MKII IWB/OWB Ambidextrous Holster The Liberator Mk II from L.A.G. Tactical is a precision-engineered holster, pressure-formed and CNC cut to ensure a perfect fit for your HK VP9 and VP9SK. Designed using CAD technology,...HKP-19386$59.95 -
On Sale
Magpul AR-15 ACS Stock - Mil-Spec
Magpul
Now: $119.95Was: $139.95Magpul AR-15 ACS Stock - Mil-Spec The patent-pending Magpul ACS (Adaptable Carbine/Storage) mil-spec model is a drop-in replacement butt-stock for AR15/M16 carbines using mil-spec-sized receiver extension tubes. Similar to the Magpul CTR, the ACS also...HKP-01134Now: $119.95Was: $139.95 -
Magpul HK MP5 & HK94 MOE SL-S Stock - FDE
Magpul
$234.95Magpul MOE SL-S - FDE- MP5 ,HK94 Magpul MOE SL-S MP5 ,HK 94 complete stock ready to drop in. Great option for those looking for different length options. Sleek and perfectly designed. The sleek profile, dual-side release latches, and waterproof battery...HKP-20489$234.95 -
On Sale
Magpul HK MP5/SP5 9mm AR Trigger Housing - BLEMISHED
Magpul
Now: $204.95Was: $299.95Magpul HK MP5/SP5 9mm AR Trigger Housing - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. With our new MP5 AR style trigger housing you can have the...HKP-20727-BNow: $204.95Was: $299.95 -
On Sale
Match Weight HK P30SK w/o Picatinny Rail - Aluminum - Black
Match Weight
Now: $126.95Was: $194.99Match Weight HK P30SK w/o Picatinny Rail - Aluminum - Black Take your P30SK (Heckler & Koch) 9mm to the next level with our Aluminum Compensator. The 2 piece Match Weight compensator attaches with ease and only takes a few minutes to...HKP-19825Now: $126.95Was: $194.99 -
On Sale
Match Weight HK VP40 w/o Picatinny Rail - Black
Match Weight
Now: $126.95Was: $194.99Match Weight HK VP40 w/o Picatinny Rail - Black Take your VP40 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...HKP-19901Now: $126.95Was: $194.99 -
Meprolight HK USP Tru-Dot Tritium Rear Night Sight
Meprolight
$59.95Meprolight HK USP Tru-Dot Tritium Rear Night Sight The fail-safe, maintenance-free orange Tru-Dot Tritium Rear Night Sight from Meprolight does not require any external power source, and provides years of usable illumination in all...HKP-19735$59.95 -
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 -
MM HK 21E/23E/MSG90 (7.62x51/.308) & (5.56/.223) Scope Mount
Michaels Machines
$899.95HK21E/23E Or MSG90 Quick Release Rail Scope Mount Made in the USA of the best material and to factory HK specs. First time offered and exclusively here at HKPARTS.NET.HKP-01924$899.95 -
Out Of Stock
MM HK UMP 9mm Conversion Kit
Michaels Machines
$989.95HK UMP & USC 9mm Conversion Kit US Made - 9mm 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 conversion parts are drop-in with...HKP-02286$989.95 -
Out Of Stock
MM Registered Sear Pack - Re-Timed Hammer - Belt-Fed
Michaels Machines
$139.95MM Registered Sear Pack - Re-Timed Hammer - Belt-Fed Billeted re-timed Hammer that has been professionally re-timed by Michael's Machines for belt-fed HK firearms with registered sear packs. A one piece billeted HK re-timed hammer is the necessary...HKP-16996$139.95 -
MP5K Navy Style SEF Semi Trigger Group - Clipped & Pinned
H&K Heckler & Koch
$599.95MP5K Navy Style SEF Semi Trigger Group - C/P HK German manufactured parts. Each unit comes with the professionally converted SEF navy style SEF clipped & pinned housing and semi auto only German HK trigger pack. All trigger groups include a new 3rd...HKP-18055$599.95 -
On Sale
Picatinny Rail - HK G36 - HKP
HKP HK Parts
Now: $99.95Was: $179.95Picatinny Rail - HK G36 - HKP HK Lateral Picatinny rail Ambidextrous for carrying handle. Compatible With: G36 G36K G36C Specifications: Material: aluminumhkp-18726Now: $99.95Was: $179.95 -
RCM HK MP5K & MP5KN 9mm Barrel – Threaded 1/2x32 – 3–Lug
RCM
$299.95RCM HK MP5K & MP5KN 9mm Barrel – Threaded 1/2x32 – 3–Lug Machined from a cold hammer forged blank, this MP5KN (PDW) barrel meets the latest specifications with factory-correct, updated 16 flutes in the chamber. Featuring a three-lug...HKP-20806$299.95 -
RCM HK MP5K 10mm Barrel - Threaded 14x.75
RCM
$279.95RCM HK MP5K 10mm Barrel - Threaded 14x.75 Upgrade your MP5K with the RCM HK MP5K 10mm Barrel, featuring a precise 14x1.75 threading for optimal accessory compatibility. Expertly crafted to enhance performance and reliability, this barrel is perfect for...HKP-21155$279.95 -
RCM HK MP5K 10mm Barrel - Threaded 9/16x24
RCM
$279.95RCM HK MP5K 10mm Barrel - Threaded 9/16x24 Enhance the performance of your MP5K with the RCM HK MP5K 10mm Barrel. This barrel is precision engineered for superior accuracy and durability, making it an essential upgrade for firearm enthusiasts...HKP-21157$279.95 -
RCM HK P2000 .40 S&W Barrel - Threaded 14.5x1 LH
RCM
$225.00RCM HK P2000 .40 S&W Barrel - Threaded 14.5x1 LH Each P2000 .40 tactical barrel is finely and painstakingly made from ordnance grade steel, heat treated and finished inside and out in the ultra-desirable nitride finish. This is the finest threaded...HKP-16942$225.00 -
RCM HK USPC 9mm Barrel - Non-Threaded
RCM
$199.95RCM HK USPC 9mm Barrel - Non-Threaded Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest replacement barrel for the HK USPC 9mm pistol, ideal as a spare or for...HKP-16704$199.95 -
RCM HK53K (5.56/.223) Barrel - Threaded 15x1 RH
RCM
$164.95RCM HK53K (5.56/.223) Barrel - Threaded 15x1 RH These are the finest US-made barrels available and come highly recommended by HKParts. Specifications: Made In The USA Threaded 15x1 RH Counts As 1 US Made 922r Compliant Part Cold Hammer Forged...HKP-02400$164.95 -
RCM MP5 & HK34 9mm Barrel - Threaded 1/2x28
RCM
$204.95RCM MP5 & HK34 9mm Barrel - Threaded 1/2x28 Each barrel is hand-selected from the finest cold hammer forged (CHF) 41V45 steel blanks, expertly profiled and chambered in the desirable 16 flute chamber profile. Finished with a durable...HKP-17762$204.95 -
On Sale
Sig Sauer ROMEO1PRO 6MOA Dot
Sig Sauer
Now: $299.95Was: $439.95Sig Sauer ROMEO1PRO 6MOA Dot The ROMEO1PRO brings a new level of durability and performance to the miniature open-reflex red dot sight. Its aircraft grade aluminum housing ensures corrosion resistance under the harshest environments, and a new...HKP-19719Now: $299.95Was: $439.95