All Parts

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
    H&K HK MP5 4 Position Burst Trigger Group 0,1,3,F - Used H&K HK MP5 4 Position Burst Trigger Group 0,1,3,F - Used
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    H&K HK MP5 4 Position Burst Trigger Group 0,1,3,F - Used

    H&K Heckler & Koch

    $0.00
    H&K HK MP5 4 Position Burst Trigger Group 0,1,3,F - Used USED pull off's from HK German MP5's. This is a complete trigger group that is a used 4 Position Burst (0,1,3,F) trigger group complete. This is a factory HK push pin Trigger group just as it...
    HKP-19483
    $0.00
    Out Of Stock Quick view
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    $0.00
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  • H&K HK MP5 40 & MP5 10mm Factory F/A Bolt Carrier H&K HK MP5 40 & MP5 10mm Factory F/A Bolt Carrier
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    H&K HK MP5 40 & MP5 10mm Factory F/A Bolt Carrier

    H&K Heckler & Koch

    $449.95
    New HK German MP5 40/10 Factory F/A Bolt Carrier This is the latest and greatest version of the MP5 40 and MP5 10mm carrier. No longer in production or manufactured. Tungsten filled German HK and the real deal.  
    HKP-19390
    $449.95
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    $449.95
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  • H&K HK MP5 40 2 Position Navy Semi Only Clipped & Pinned Trigger Group
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    H&K HK MP5 40 2 Position Navy Semi Only Clipped & Pinned Trigger Group

    H&K Heckler & Koch

    $769.95
    HK MP5 40 2 Position Navy Semi Only Clipped & Pinned Trigger Group
    HKP-01752
    $769.95
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    $769.95
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  • H&K HK MP5 9mm Single Shot Reverse Stretch Build Kit
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    H&K HK MP5 9mm Single Shot Reverse Stretch Build Kit

    H&K Heckler & Koch

    $1,649.95
    California Spec Single Shot Reverse Stretch Kit - German & USA Made Parts: This kit was built with the CA market in mind. This kit has a specially designed locking piece that once installs it renders the kit a single shot style roller lock. This kit...
    HKP-19698
    $1,649.95
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    $1,649.95
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  • Out Of Stock
    H&K HK MP5 A3 Refinished Stock - Surplus H&K HK MP5 A3 Refinished Stock - Surplus
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    H&K HK MP5 A3 Refinished Stock - Surplus

    H&K Heckler & Koch

    $0.00
    Used German Manufactured A3 Retractable Stock - Refinished Each German HK stock is used and had been refinished (early 80's manufacture) A one time offering of some well used German stocks that have been professionally dissassembled, cleaned, repainted...
    HKP-16841
    $0.00
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  • H&K HK MP5 Parts Kit A3 4-Position Ambidextrous Lower
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    H&K HK MP5 Parts Kit A3 4-Position Ambidextrous Lower

    H&K Heckler & Koch

    $5,499.95
    HK German MP5 9mm Used Parts Kit Complete   (Minus Receiver Of Course)   100% GERMAN PARTS All MP5 Kits: HK 3-Lug MP5 Barrel - cold hammer forged Cocking Tube Front Sight Tower Wide Forearm - Black Bolt Group - MP5 Full Auto Push Pins - 1...
    HKP-01301
    $5,499.95
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    $5,499.95
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  • Out Of Stock
    H&K HK MP5, 94, 53 Factory Slimline Forearm - Used H&K HK MP5, 94, 53 Factory Slimline Forearm - Used
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    H&K HK MP5, 94, 53 Factory Slimline Forearm - Used

    H&K Heckler & Koch

    $0.00
    Used In fair/Good Shape Heckler & Koch Genuine HK94/MP5 slimline forearm. Well used but this is a perfect project forearm. This is a rare and hard to find part that fits on all MP5,94 & MP5 40/10 variants. HK no longer makes these but we have a...
    HKP-01720
    $0.00
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  • Out Of Stock
    H&K HK MP5, HK94 100 Degree Locking Piece-Used
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    H&K HK MP5, HK94 100 Degree Locking Piece-Used

    H&K Heckler & Koch

    $0.00
    H&K HK MP5, HK94 100 Degree Locking Piece-Used MP5 100 degree used surplus locking piece. Pulled from early HK German MP5 parts kits.
    HKP-00668
    $0.00
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  • Out Of Stock
    H&K HK MP5K Gun Briefcase H&K HK MP5K Gun Briefcase
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    H&K HK MP5K Gun Briefcase

    H&K Heckler & Koch

    $0.00
    H&K HK MP5K Gun Briefcase Compatible With: MP5K Can be adapted for use with custom builds and other MP5K variants Specifications: Dimensions: 20 in/15 in/ 5 in Condition: New Origin: Germany
    HKP-19207
    $0.00
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  • Out Of Stock
    H&K HK MP7 Extended Charging Handle - Black H&K HK MP7 Extended Charging Handle - Black
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    H&K HK MP7 Extended Charging Handle - Black

    H&K Heckler & Koch

    $0.00
    HK MP7 Extended Charging Handle HK German Factory New Extended Charging Handle Compatible With: MP7 MP7A1 MP7A2
    HKP-18784
    $0.00
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  • On Sale
    H&K HK MP7A1 Left Thigh Rig Holster - Gray - BLEMISHED H&K HK MP7A1 Left Thigh Rig Holster - Gray - BLEMISHED
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    H&K HK MP7A1 Left Thigh Rig Holster - Gray - BLEMISHED

    H&K Heckler & Koch

    Now: $167.95
    Was: $299.95
    H&K HK MP7A1 Left Thigh Rig Holster - Gray - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. New HK MP7A1 German made thigh Rig Holster. This...
    HKP-16733-GY-B
    Now: $167.95
    Was: $299.95
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    Now: $167.95
    Was: $299.95
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  • H&K HK MR556/416 9" Modular Rail System - Black H&K HK MR556/416 9" Modular Rail System - Black
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    H&K HK MR556/416 9" Modular Rail System - Black

    H&K Heckler & Koch

    $399.95
    HK MR556, CR556 Modular Rail System 9"- Black HK German MR556 & CR556 handgaurd that accepts the HKey style modular rail sections. This is also the forearm that clear the OSS suppressor system. Compatible With: MR 556 HK 416 CR 556 *Weight: 13.4...
    HKP-17341
    $399.95
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    $399.95
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  • Out Of Stock
    H&K HK MR556/416 Handguard Picatinny Profile - Black H&K HK MR556/416 Handguard Picatinny Profile - Black
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    H&K HK MR556/416 Handguard Picatinny Profile - Black

    H&K Heckler & Koch

    $0.00
    Handguard with Picatinny profile on 3, 6 and 9 o'clock, STANAG 4694 profile on 12 o'clock.Fits all: HK 416 A5 - 14.5" HK 416 A5 - 16.5" HK 416 A5 - 20"
    HKP-18493
    $0.00
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  • Out Of Stock
    H&K HK MR556/416 Titanium Barrel Nut H&K HK MR556/416 Titanium Barrel Nut
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    H&K HK MR556/416 Titanium Barrel Nut

    HKP HK Parts

    $99.95
    Titanium HK MR556, HK 416 Barrel Nut Or Socket For Barrel A must have repair and replacement part for removal or when you have any work done to your barrel as the barrel nut may become damaged in the removal and installation processes. Made in the USA...
    HKP-17275
    $99.95
    Out Of Stock Quick view
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    $99.95
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  • Out Of Stock
    H&K HK MR556/MR223 A5 Incomplete Upper Receiver - Black H&K HK MR556/MR223 A5 Incomplete Upper Receiver - Black
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    H&K HK MR556/MR223 A5 Incomplete Upper Receiver - Black

    H&K Heckler & Koch

    $0.00
    HK German Un-Assembled/Stripped HK MR556/MR223 A5 Upper Receiver Factory HK MR556 A5 upper receiver.  This is the semi-auto MR556 variant. Compatible With: HK MR556 HK MR223 HK 416*** Need a matching lower for your build?  STS416 A5 LOWER -...
    HKP-18785
    $0.00
    Out Of Stock Quick view
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    $0.00
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  • H&K HK MR556/MR762 Fixed Tactical Sling Adapter H&K HK MR556/MR762 Fixed Tactical Sling Adapter
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    H&K HK MR556/MR762 Fixed Tactical Sling Adapter

    H&K Heckler & Koch

    $129.95
    HK MR556 & MR762 Factory Sling Adapter - Fixed Factory HK German design & the finest design available & made to last. New HK manufactured part to allow the factory HK416, MR762 slings  to fit & work on the MR556, MR762 as this adds...
    HKP-17553
    $129.95
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    $129.95
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  • Out Of Stock
    H&K HK MR556/MR762/416 Buffer Staking Tool
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    H&K HK MR556/MR762/416 Buffer Staking Tool

    H&K Heckler & Koch

    $0.00
    HK 416, MR556 & MR762, HK 417 - Buffer Staking Tool - German HK Rare HK factory HK staking tool for the castle nut to be staked. These took over 3 years to get and offered for cost while supplies last! Each tool is the factory correct tool used for...
    HKP-16945
    $0.00
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    $0.00
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  • H&K HK MR762 Hammer Complete - Black H&K HK MR762 Hammer Complete - Black
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    H&K HK MR762 Hammer Complete - Black

    H&K Heckler & Koch

    $179.95
    H&K HK MR762 Hammer Complete - Black HK MR762 hammer, hammer spring, & bushing as a complete hammer assembly.  
    HKP-16614
    $179.95
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    $179.95
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  • On Sale
    H&K HK MR762, HK 417 Free Floating DMR Rail System - Black - BLEMISHED H&K HK MR762, HK 417 Free Floating DMR Rail System - Black - BLEMISHED
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    H&K HK MR762, HK 417 Free Floating DMR Rail System - Black - BLEMISHED

    H&K Heckler & Koch

    Now: $664.95
    Was: $949.95
    H&K HK MR762, HK 417 Free Floating DMR Rail System - 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 New Heckler & Koch MR762, HK 417...
    HKP-17706-B
    Now: $664.95
    Was: $949.95
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    Now: $664.95
    Was: $949.95
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  • H&K HK MR762/417 Charging Handle Catch H&K HK MR762/417 Charging Handle Catch
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    H&K HK MR762/417 Charging Handle Catch

    H&K Heckler & Koch

    $65.95
    HK MR762, HK417 Extended Charging Handle Catch Complete  New HK German manufacture. A great part to have on hand as these are prone to breakage and wear. Compatible With: MR762 HK 417 HK G28
    HKP-16852
    $65.95
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    $65.95
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  • Out Of Stock
    H&K HK MR762/417 Extended Picatinny Handguard w/ Flip Up Front - Black H&K HK MR762/417 Extended Picatinny Handguard w/ Flip Up Front - Black
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    H&K HK MR762/417 Extended Picatinny Handguard w/ Flip Up Front - Black

    H&K Heckler & Koch

    $0.00
    HK MR762, HK 417 Extended Quad Rail With Flip Up Front SightEach unit comes with both of the mounting screws, a flip up front sight assembly for emergency use as a backup sight. HK's extended 13" rail allows for longer sight radius and more rail space...
    HKP-17331
    $0.00
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    $0.00
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  • Out Of Stock
    H&K HK MR762/417 Slim Line Stock - Black H&K HK MR762/417 Slim Line Stock - Black
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    H&K HK MR762/417 Slim Line Stock - Black

    H&K Heckler & Koch

    $0.00
    HK MR762, HK 417 Slim Line Retractable StockNew From HK Germany the slim line retractable stock fits all MR762, HK 417 buffer tubes. Marked with the HK logo and issued on specialized HK 417, MR762 rifles.Fits all: HK MR762 HK 417 HK G28 Other AR .308...
    HKP-17135
    $0.00
    Out Of Stock Quick view
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    $0.00
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  • Out Of Stock
    H&K HK MR762/417/G28 Bolt Head Complete H&K HK MR762/417/G28 Bolt Head Complete
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    H&K HK MR762/417/G28 Bolt Head Complete

    H&K Heckler & Koch

    $0.00
    HK German 417 & MR762 Bolt Head Complete - .308/7.62 New HK German manufacture Compatible With: HK MR762 HK MR308 HK G28
    HKP-18143
    $0.00
    Out Of Stock Quick view
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    $0.00
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    Out Of Stock
  • H&K HK P30, P30S 9mm Barrel - Black H&K HK P30, P30S 9mm Barrel - Black
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    H&K HK P30, P30S 9mm Barrel - Black

    H&K Heckler & Koch

    $269.95
    New HK German P30, P30S Standard 9mm Factory Barrel Brand new factory German HK P30, P30S 9mm Standard Length Barrel - 3.85" Cold hammer Forged, date coded, and proofed barrel.
    HKP-01828
    $269.95
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    $269.95
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  • H&K HK P30/P30S Recoil Spring Guide Rod H&K HK P30/P30S Recoil Spring Guide Rod
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    H&K HK P30/P30S Recoil Spring Guide Rod

    H&K Heckler & Koch

    $49.95
    HK P30 & P30S Recoil Spring Guide Rod This is the guide rod portion of the recoil spring assembly. The rod is the only part included with no spring or rings.
    HKP-02247
    $49.95
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    $49.95
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  • On Sale
    H&K HK P7 PSP Front Sight 6.5mm
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    H&K HK P7 PSP Front Sight 6.5mm

    H&K Heckler & Koch

    Now: $22.95
    Was: $29.95
    HK P7 PSP Front Sight 6.5mm Compatible With: PSP
    HKP-01337
    Now: $22.95
    Was: $29.95
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    Now: $22.95
    Was: $29.95
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  • H&K HK P7 Series Disconnector, Sear Control Lever
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    H&K HK P7 Series Disconnector, Sear Control Lever

    H&K Heckler & Koch

    $49.95
    HK P7 Series Disconnector, Sear Control Lever New HK German factory part. Compatible With: PSP P7M8 P7M10 P7M13
    HKP-01308
    $49.95
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    $49.95
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  • Out Of Stock
    H&K HK P7 Series Firing Pin
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    H&K HK P7 Series Firing Pin

    H&K Heckler & Koch

    $0.00
    H&K HK P7 Series Firing Pin Compatible With: HK P7 PSP HK P7 M8 HK P7 M10 HK P7 M13
    HKP-00796
    $0.00
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    Qty in Cart: 0
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    $0.00
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  • On Sale
    H&K HK P7M10 .40 S&W Magazine Follower Insert - USED - BLEMISHED
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    H&K HK P7M10 .40 S&W Magazine Follower Insert - USED - BLEMISHED

    H&K Heckler & Koch

    Now: $22.95
    Was: $34.95
    H&K HK P7M10 .40 S&W Magazine Follower Insert - USED - BLEMISHED USED. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL.
    HKP-01364-B
    Now: $22.95
    Was: $34.95
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    Qty in Cart: 0
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    Now: $22.95
    Was: $34.95
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