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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H&K G36/SL8 (5.56/.223) Complete Firing Pin Retaining Pin
H&K Heckler & Koch
$9.95Retaining Pin For Firing Pin Complete With O-ring Compatible With: HK G36 HK SL8HKP-14050$9.95 -
H&K HK 416 Extended 11" A3 Forearm w/ Flip Up Front Sight
H&K Heckler & Koch
$799.95HK 416 A3 Extended Forearm With Integrated Flip Up Front Sight: HK designed & manufactured in Germany 11" HK416 A5, MR556 extended quad rail. This drop in unit offers 2 full inches in extra length. Not the standard 9" rail that comes with the HK...HKP-17377$799.95 -
H&K HK G28 Buffer Tube - Black
H&K Heckler & Koch
$195.99HK G28 Buffer Tube / Receiver Extension- Tan New HK German buffer tube with the proper slot cut for use with the G28 stock. This is the factory correct part needed to get the full range and use of the G28 adjustable stock. Made in Germany by HK.HKP-16741$195.99 -
H&K HK G36 Left Side Lower Hammer Spring
H&K Heckler & Koch
$8.95HK G36 Left Side Lower Hammer SpringHKP-01856$8.95 -
H&K HK MR556/416 Roll Pin for Charging Handle
H&K Heckler & Koch
$7.95HK Clamping Sleeve or Roll Pin for Pawl On Charging Handle This is the longer one that is used on the outside of the charging handle. There are one of these pins used per charging handle.HKP-17063$7.95 -
H&K HK MR556/416A5 Quad Rail w/ Flip Up Sight - Black
H&K Heckler & Koch
$599.95HK 416A5 9" Quad Rail With Flip Up Front Sight - Black New latest production HK 416A5, MR556 9" quad rail with integrated built in front flip up sight. Latest upgraded design with the laser markings for the adjustable gas block for suppressed and...HKP-17710$599.95 -
H&K HK P30 Recoil Rod Compression Spring
H&K Heckler & Koch
$7.95H&K HK P30 Recoil Rod Compression SpringHKP-16653$7.95 -
H&K HK USPC/P30/45C Recoil Spring Washer Retainer
H&K Heckler & Koch
$9.95New HK German Recoil Spring Washer Retainer This is the retaining washer that holds the spring captive on the end of the recoil assembly and pushes against the recoil spring. Compatible With: All USP Compact models P2000 P30 HK45 HK45CHKP-01594$9.95 -
H&K HK VP40 Left Side Charging Support - Black
H&K Heckler & Koch
$4.95H&K HK VP40 Left Side Charging Support - Black Compatible With: HK VP40 NOT for the VP9HKP-17684$4.95 -
H&K MP5 Rear Receiver Section
H&K Heckler & Koch
$14.95H&K MP5 Rear Receiver Section HK German demilled receiver section with rear sight base as installed at the factory. MP5 & HK94 Factory HK rear sight bases (portion welded to MP5 receiver), you get the actual demilled section of an MP5 receiver...HKP-02167$14.95 -
Out Of Stock
H&K MP5 SEF F/A Trigger Group- SEF Contoured
H&K Heckler & Koch
$0.00H&K MP5 SEF F/A Trigger Group- SEF Contoured Ready to install on your HK push pin swing-down receivers. New German HK trigger housing and selector lever. Used hand-picked trigger pack.HKP-02239$0.00 -
Out Of Stock
H&K MP5K/SP89 9mm 2 Position (0,1 Pictogram) FBI Style Trigger Housing - Clipped & Pinned
H&K Heckler & Koch
$199.95H&K MP5K/SP89 9mm 2 Position (0,1 Pictogram) FBI Style Trigger Housing - Clipped & Pinned This clipped and pinned trigger housing is modified to fit MP5K or SP89 housings. It accommodates all HK German ambidextrous trigger packs and selector...HKP-00402$199.95 -
Out Of Stock
H&K P30/L/S Backstrap - Small - Black
H&K Heckler & Koch
$29.95H&K P30/L/S Backstrap - Small - Black New HK German manufactured. Compatible With: P30 9mm and .40 cal P30L 9mm and .40 cal P30S 9mm and .40 calHKP-01571$29.95 -
Out Of Stock
H&K USC/SL8 (.45 ACP/5.56/.223) Buttstock Screw - Used
H&K Heckler & Koch
$9.95Buttstock Allen Screw For HK USC Or HK SL8 rifles. This is the screw that holds the stock assembly onto the upper receiver of the HK USC & SL8.Great for replacements or to have as spares. This item is factory HK and a common spare.HKP-01649$9.95 -
H&K VP9, VP40 Backstrap - Medium - Black
H&K Heckler & Koch
$29.95H&K VP9, VP40 Backstrap - Medium - Black New HK German manufacture. Compatible With: HK VP9 HK VP40HKP-16813$29.95 -
H&K VP9, VP9SK, VP40 Slide Plate - Black
H&K Heckler & Koch
$13.95H&K VP9, VP9SK, VP40 Slide Plate - Black New German HK manufacture. Slide plate for the rear of the pistol. Made of polymer. Compatible With: HK VP9, VP9 Tactical, VP9 OR HK VP9SK HK VP40HKP-16834$13.95 -
H&K VP9/VP9SK & HK VP40 (9mm & .40 S&W) Complete Trigger Housing
H&K Heckler & Koch
$89.95H&K VP9/VP9SK & HK VP40 (9mm & .40 S&W) Complete Trigger Housing Enhance the performance of your H&K VP9, VP9SK, or HK VP40 with this complete trigger housing. Designed for both 9mm and .40 S&W calibers, this high quality trigger...HKP-16797$89.95 -
Out Of Stock
H&K VP9SK Left Grip Panel w/ Thumb Rest - Medium - Black
H&K Heckler & Koch
$19.95H&K VP9SK Left Grip Panel w/ Thumb Rest - Medium - Black New HK German manufactured. Left side medium size with thumb rest perfect for spare or for custom stippling projects. Drop-in part for your HK VPSK pistol. Compatible With: HK VP9SKHKP-18632$19.95 -
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 -
$20.95 -
HKP .40 S&W Micro Comp - 14.5x1 LH
HKP HK Parts
$49.95HKP .40 S&W Micro Comp - 14.5x1 LH This lightweight micro comp serves as both a compensator and thread protector. It attaches easily to any factory spec 14.5x1 LH .40 S&W barrel. Specifications: Threaded 14.5x1 LH Compatible...HKP-20596$49.95 -
HKP .40 S&W Thread Protector - Threaded 14.5x1 LH - Titanium
HKP HK Parts
$24.95HKP HK .40 S&W Thread Protector - Threaded 14.5x1 LH - Titanium Solid Titanium .40 S&W tactical thread protector, cap fits all HK USP .40 S&W full size & compact barrels threaded 14.5x1 left hand thread. A must have item to protect your...HKP-17961$24.95 -
Out Of Stock
HKP ACE Adapter for MP5K, SP89 & SP5K
HKP HK Parts
$54.95ACE Adapter for MP5K, SP89 & SP5K Each ACE adapter is made from a solid billet of CNC machined aircraft grade aluminum. Properly buffered with factory correct "H" buffers to protect your expensive firearm. This is the finest ACE adapter...HKP-18505$54.95 -
HKP Dual HK MP5 Magazine Clamp Conversion Screw
HKP HK Parts
$2.95HKP Dual HK MP5 Magazine Clamp Conversion Screw This screw converts a HK91, G3, PTR dual magazine clamp (HKP-19634) into the correct length for use on curved MP5 magazine. Includes: (1) screwHKP-20318$2.95 -
HKP HK MP5K/SP89 9mm Flat Receiver
HKP HK Parts
$199.95MP5K, SP89 Receiver Flat - 9mm New MP5K receiver flat made by the original German tool and die maker of the LSC receiver flat utilizing factory original German prints and specifications. The creator of our receiver flat has been regarded as the premier...HKP-20733$199.95 -
HKP HK P30L Railok™ Threaded Barrel Compensator
HKP HK Parts
$189.95HK Parts Railok™ Mounting System Compensator: H&K P30L for Threaded Barrel The HK Parts Railok™ mounting system compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle...HKP-21145$189.95 -
HKP HK UMP .40 S&W Barrel - Threaded 9/16x24 - 3-Lug
HKP HK Parts
$299.95HKP HK UMP .40 S&W Barrel - Threaded 9/16x24 - 3-Lug This new USA-made .40 S&W 8" barrel is designed for UMP or Omega firearms, featuring both 9/16x24 threading and a 3-lug tip. It’s the finest barrel available for the UMP .40 S&W,...HKP-18282$299.95 -
HKP HK UMP 9mm Barrel - Threaded 1/2x28 - 3-lug
HKP HK Parts
$299.95HKP HK UMP 9mm Barrel - Threaded 1/2x28 - 3-lug HKP UMP 3-lug 1/2x28 threaded barrel. This is the perfect replacement for a worn out barrel or as a spare. With the 3-lug attachment point you can attach any suppressor or flash hider that is in-spec or you...HKP-18639$299.95 -
On Sale
HKP HK VP9L Rail Mount Compensator for Threaded Barrel Gen 2 - Black
HKP HK Parts
Now: $139.95Was: $169.95HKP HK VP9L Rail Mount Compensator for Threaded Barrel Gen 2 - Black Specifications: Length: 4 1/4 inches Height: 2 1/2 inches Weight: 5 oz. Torque: 3nM / 26 inch-lbs Crafted from aircraft-grade billet aluminum and finished in durable Cerakote. This is...HKP-20631Now: $139.95Was: $169.95 -
HKP/H&K MP5K/SP89 9mm SEF Semi-Auto Metal Style Grip Frame
HKP HK Parts
$89.95HKP/H&K MP5K/SP89 9mm SEF Metal Style Grip Frame Each German HK housing started out as a factory HK German select fire metal housing. Each housing was modified by welding in a factory correct semi auto shelf, clipped from a double tang housing to a...HKP-16490$89.95 -
Out Of Stock
Lazy Wolf VP Series Trigger Safety Tab Kit - F2 Flat Face - Gold
Lazy Wolf
$19.95F2 Flat Face VP Series Trigger Tab, Spring Set - Lazy Wolf Guns - Gold Replacement trigger safety tab, spring, and roll pin kit as pictured for the HK VP9 series of LWG triggers. Ideal if you need a replacement LWG trigger safety tab, spring and roll pin...HKP-20093$19.95 -
On Sale
Magpul AR-15 CTR 6 Position Stock- Commercial
Magpul
Now: $44.95Was: $79.95Magpul AR-15 CTR 6 Position Stock - Commercial Spec The Magpul CTR (Compact/Type Restricted) Commercial-Spec Model is a drop-in replacement buttstock for AR15/M16 carbines using mil-spec-sized receiver extension tubes. The streamlined A-frame...HKP-02375Now: $44.95Was: $79.95 -
Meprolight HK45/HK45C, P30, VP9 Hyper-Bright Self Illuminated Day/Night Sight Set - Orange
Meprolight
$114.95Meprolight HK45/HK45C, P30, VP9 Hyper-Bright Self Illuminated Day/Night Sight Set - Orange Mepro Hyper-Bright fixed pistol sights feature an extremely bright contrasting colored ring front sight. The tritium is illuminated green to provide low-light and...HKP-19942$114.95 -
RCM HK Mark 23 .45 ACP Tactical Barrel - Threaded 16x1 LH
RCM
$270.00RCM HK Mark 23 .45 ACP Tactical Barrel - Threaded 16x1 LH US-made HK Mark 23 tactical threaded barrel designed for use with a wide variety of flash hiders and sound suppressors. Unlike the factory HK Mark 23 barrel with 16x1 right-hand...HKP-17443$270.00 -
RCM HK PSG1 Style Trunnion
RCM
$119.95HK PSG1 Trunnion- PTR- USA RCM trunnion for custom PSG1, MSG90, & other custom HK91/G3 type builds. Machined completely from ordnance grade 9310 enhanced steel and heat treated to exact HK specifications. This item is the best USA made trunnion on...HKP-20522$119.95 -
RCM MP5 40, MP5 10mm Complete Bolt Group
HKP HK Parts
$414.95RCM- MP5 40 & MP5 10mm - Bolt Group Complete Ideal to replace out of spec, worn or broken bolt groups or for that custom build. Includes: RCM bolt head complete RCM locking piece RCM firing pin RCM firing pin spring RCM full auto bolt carrier...HKP-19723$414.95 -
Streamlight H&K USP Conversion Kit
Streamlight
$24.95TLR-3 & TLR-4/TLR-4G H&K USP Full Size Conversion Kit - Full Size USP This kit adapts a standard TLR-3 or TLR-4 to fit a USP full size pistol.HKP-16923$24.95 -
Surefire Ultra-Compact LED Handgun Light & Laser - Red
Surefire
$404.99Surefire, XC2 Weaponlight, Pistol, 300 Lumen LED, Light/Laser Combo, Black The XC2 is SureFire's smallest, most lightweight handgun light with an integrated laser. It features a recoil-proof LED that's focused by a multi-faceted reflector to create our...HKP-18742$404.99 -
On Sale
Talon Grip HK VP9SK Rubber - Medium - Black
Talon Grip
Now: $14.95Was: $19.99TALON Grip - H&K VP9SK - Rubber Black - Medium Backstrap TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you maintain control. Installation is quick and...HKP-20232Now: $14.95Was: $19.99 -
Truglo HK VP/45C/P30 Pro Tritium Fiber-Optic Day/Night Sights - Green
Truglo
$157.95Truglo HK VP/45C/P30 Pro Tritium Fiber-Optic Day/Night Sights - Green TFX Sights are always ready-made from ultra-tough, chemical-resistant materials and providing a bright sight picture both day and night, helping you stay prepared for any scenario. TFX...HKP-17664$157.95