Rifle / SMG Parts
Elevate Your H&K Rifle with Premium Parts – MP5, HK416, SP5, and More!
Enhance your H&K rifle with top-notch parts and accessories. From MP5 and MP5K to SP5 and UMP/USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, SP5K, G36, or MP5 22, we have the H&K rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.
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Out Of Stock
H&K HK UMP Demilled Extended Rear Receiver Section
H&K Heckler & Koch
$0.00HK German Factory UMPÂ Receiver Section - ExtendedThis is a demilled factory HK UMP rear receiver section that is perfect for the new Tom Bostic USC-UMP conversions. This section is the perfect length in order to do the USC/UMP conversion. Just in only...HKP-19798$0.00 -
H&K HK USC 45 Barrel - Used
H&K Heckler & Koch
$695.95Barrel - HK USC 45 in Exc + shape HK German factory USC 45 barrel in excellent + condition. Rare and hard to find.HKP-20471$695.95 -
Out Of Stock
H&K HK USC, UMP German Polymer Receiver Optic Rail
H&K Heckler & Koch
$0.00H&K HK USC, UMP German Polymer Receiver Optic Rail German HK USC, UMP polymer top Receiver Rail with mounting hardware. Includes: Factory HK rail 2 mounting screws Compatible With: HK German spec UMP USC upper receiversHKP-19616$0.00 -
H&K HK21E/HK23E Rear Sight Base
H&K Heckler & Koch
$79.95H&K HK21E/HK23E Rear Sight Base Genuine HK German rear site base. Requires post installation machining to accommodate a scope. Compatible With: HK21E HK23EHKP-21508$79.95 -
H&K HK33 / HK93 Slimline Forearm - FDE
H&K Heckler & Koch
$69.95H&K HK33 / HK93 Slimline Forearm - FDE Cerakoted German military FDE slimline forearm. These forearms started as a G3,HK91 length forearm and was machined to fit the HK 93,33, cleaned up and Cerakoted FDE for the best finish possible. Available...HKP-20487$69.95 -
H&K HK33 A3 German Parts Kit - Used
H&K Heckler & Koch
$4,499.00HK33 A3 Parts Kits - Used Surplus Parts kit does not include a receiver Demilled & prepared per BATF specifications. HK 33 parts kit with a rare A3 collapsible stock. 0, 1, 25 factory correct trigger group, wide handguard, HK date-coded barrel, and...HKP-20723$4,499.00 -
Out Of Stock
H&K HK33A2 Parts Kit-Used
H&K Heckler & Koch
$0.00HK33 A2 Parts Kits - Used Surplus Parts kit does not include a receiver Demilled & prepared per BATF specifications.These are the last ones available we are told there will be no more available at this price.HK93 style receiver flats are also...HKP-00783$0.00 -
Out Of Stock
H&K HK416, MR556 Ejection Port Cover - FDE
H&K Heckler & Koch
$0.00HK German HK 416, MR556 Ejection Port Cover In RAL7008 -FDE HK manufactured newer polymer style cover assembly found on the latest HK 416 & MR556's. This item can also be used on other AR15 style projects to enhance the project with the finest...HKP-19450$0.00 -
Out Of Stock
H&K MP5 "Action 3" Bolt Group Complete
H&K Heckler & Koch
$0.00New HK German MP5 "Action 3" Bolt Group Complete. Includes the following: MP5 Action 3 Bolt head complete, MP5 Full Auto Bolt Carrier (newer F style), MP5 Firing pin, MP5 Firing pin spring, 100 MP5 Degree Locking piece & Complete MP5/94 recoil rod...HKP-00129$0.00 -
Out Of Stock
H&K MP5 & 93/33 (9mm & 5.56/.223) 2 Position (0,1 Pictogram) FBI Style Trigger Housing
H&K Heckler & Koch
$0.00H&K MP5 & 93/33 (9mm & 5.56/.223) 2 Position (0,1 Pictogram) FBI Style Trigger Housing This ambidextrous housing is designed for compatibility with any ambidextrous style trigger packs. It features a 2 position pictogram (0,1) and is crafted...HKP-00163-M$0.00 -
Out Of Stock
H&K MP5 & 93/33 (9mm & 5.56/.223) Unmarked Ambidextrous Housing - Clipped & Pinned
H&K Heckler & Koch
$0.00H&K MP5 & 93/33 (9mm & 5.56/.223) Unmarked Ambidextrous Housing - Clipped & Pinned This ambidextrous lower housing is designed specifically for use with MP5, HK33, and HK93 trigger packs. Featuring a clean, unmarked exterior, it offers a...HKP-15303$0.00 -
Out Of Stock
H&K MP5 & 93/53/33 (9mm & 5.56/.223) 4 Position (0,1,3,F Pictogram) Grip Housing - Clipped & Pinned
H&K Heckler & Koch
$0.00H&K MP5 & 93/53/33 (9mm & 5.56/.223) 4 Position (0,1,3,F Pictogram) Grip Housing - Clipped & Pinned This new HK German grip housing features 4 position pictogram (0,1,3,F). It is clipped and pinned, designed for use with HK MP5/94 or...HKP-00161$0.00 -
Out Of Stock
H&K MP5 & 93/53/33 (9mm, 5.56/.223) 4 Position (0,1,3,F Pictogram) Grip Housing - Push Pin
H&K Heckler & Koch
$0.00H&K MP5 & 93/53/33 (9mm, 5.56/.223) 4 Position (0,1,3,F Pictogram) Grip Housing - Push Pin This HK German grip housing is designed for push pin type receivers. This housing is not clipped & pinned, coming exactly as it was manufactured by HK...HKP-02240$0.00 -
Out Of Stock
H&K MP5 & HK94 Vented Wide Forearm - Horizontal
H&K Heckler & Koch
$0.00New German HK MP5 & HK94 vented wide forearm with The horizontal style vents. This style of venting allows better handling & superior barrel cooling abilities.HKP-01842$0.00 -
Out Of Stock
H&K MP5 & HK94 Vented Wide Forearm - Vertical
H&K Heckler & Koch
$0.00New German HK MP5 & HK94 vented wide forearm with The 90 offset degree vents. This style of venting allows better handling and superior barrel cooling abilities. Offered only here at HKPARTS.HKP-00176$0.00 -
Out Of Stock
H&K MP5 & MP5K Stop Pin For Recoil Rod
H&K Heckler & Koch
$14.99HK German MP5 & MP5K Recoil Rod Stop Pin New HK German manufacture a great spare or replacement item to have on hand. Compatible With: MP5, 94, SP5 MP5K, SP89, SP5KClones or other custom buildsHKP-17421$14.99 -
Out Of Stock
H&K MP5 .40 S&W Barrel - Threaded 14x.75 - 3-Lug
H&K Heckler & Koch
$599.95H&K MP5 .40 S&W Barrel - Threaded 14x.75 - 3-Lug German HK Barrel that is threaded and three lugged with the factory correct thread pitch 14x.75 and thread protector. Pulled out from demilled MP5 .40 S&W, this is a rare part, and only a few...HKP-01638$599.95 -
H&K MP5 .40 S&W Factory Barrel - Threaded - 3-Lug
H&K Heckler & Koch
$1,495.00H&K MP5 .40 S&W Factory Barrel - Threaded - 3-Lug New MP5 .40 S&W barrel. Factory-installed sight tower with sight/sling eyelets and factory finish. Specifications: Threaded 3-Lug Compatible With: HK MP5 .40 S&W Rare & hard to find...HKP-19349$1,495.00 -
H&K MP5 .40 S&W Parts Kit
HKP HK Parts
$2,699.95HK MP5 .40 Pistol German Parts Kit - Used. Genuine German HK MP5 40 parts kit in the pistol configuration Includes: Barrel - 3 lugged & threaded, cold hammer-forged Trigger Group - Ambidextrous Navy 0,1, F Trigger Group or SEF Navy your choice A1...HKP-16719$2,699.95 -
Out Of Stock
H&K MP5 1st Generation Bolt Head Complete-Used
H&K Heckler & Koch
$274.95MP5 1st Generation Bolt Head Complete - Used Parts come from trade-in MP5's.HKP-00664$274.95 -
Out Of Stock
H&K MP5 3 Position (0,1,F Pictogram) Navy Housing - Push Pin
H&K Heckler & Koch
$0.00H&K MP5 3 Position (0,1,F Pictogram) Navy Housing - Push Pin This H&K grip housing is designed for MP5 models with push pin type receivers. Featuring the iconic Navy housing and 3 position pictogram (0,1,F), this housing provides reliable and...HKP-16065$0.00 -
H&K MP5 3 Position Navy (0,1,Full) Trigger Group
H&K Heckler & Koch
$2,499.95HK MP5 9mm 3 Position Navy (0,1,Full) Trigger Group Complete New Factory German manufacture brand new 3 position Navy ambidextrous F/A trigger group. Safe, semi, full controls. Each unit comes complete as shown as the trigger group comes from the factory...HKP-00160$2,499.95 -
H&K MP5 3 Position Navy T/G 0,1,Full With ESSL
H&K Heckler & Koch
$2,549.95HK MP5 3 Position Navy T/G (0,1,Full) With Extended Safety Selector Lever New Factory German HK With The Best Price In The Country! Brand new factory German. Complete trigger group with the extended lever installed on the left side of the trigger group...HKP-00159$2,549.95 -
Out Of Stock
H&K MP5 40/10 (0,1,3,F) Trigger Group/Housing - Semi - Clipped & Pinned
H&K Heckler & Koch
$0.00H&K MP5 40/10 Safe & Semi Only Trigger Group & Housing - Clipped & PinnedHKP-17029$0.00 -
Out Of Stock
H&K MP5 40/10 2 Position (0,1 Pictogram) FBI Style Trigger Housing - Clipped & Pinned
H&K Heckler & Koch
$0.00H&K MP5 40/10 2 Position (0,1 Pictogram) FBI Style Trigger Housing - Clipped & Pinned This 2 position trigger housing (0,1) features FBI pictogram markings and is designed for the HK MP5 40/10 series. It comes clipped and pinned for semi-auto...HKP-02696$0.00 -
Out Of Stock
H&K MP5 40/10 3 Position Navy Style Trigger Housing - Clipped & Pinned
H&K Heckler & Koch
$0.00H&K MP5 40/10 3 Position Navy Style Trigger Housing - Clipped & Pinned Upgrade your MP5 40 with this authentic German 3 position navy pictogram trigger housing. Clipped and pinned for use on a semi-auto receiver shelf, this housing is designed...HKP-00449$0.00 -
Out Of Stock
H&K MP5 40/10 4 Position (0,1,2,F Pictogram) Trigger Housing - Push Pin
H&K Heckler & Koch
$0.00H&K MP5 40/10 4 Position (0,1,2,F Pictogram) Trigger Housing - Push Pin This factory push pin housing features a 4 position pictogram (0,1,2,F), designed for the MP5 40/10 series. It is a new HK German grip frame that has not been clipped and pinned...HKP-18030$0.00 -
Out Of Stock
H&K MP5 40/10 4 Position (0,1,2,F) Trigger Group
H&K Heckler & Koch
$0.00H&K MP5 40/10 4 Position (0,1,2,F) Trigger Group New HK MP5 40/10 German 4 Position (0,1,2,F) Trigger Group Complete. This item is no longer in production. We have the LAST available units HK Germany will ever make. Last call.HKP-00339$0.00 -
Out Of Stock
H&K MP5 40/10 4 Position (0,1,3,F) Trigger Housing - Clipped & Pinned
H&K Heckler & Koch
$0.00H&K MP5 40/10 4 Position (0,1,3,F Pictogram) Trigger Housing - Clipped & Pinned This H&K MP5 40/10 trigger housing features a 4 position pictogram (0,1,3,F) and a bolt hold open cutout. The housing is clipped and pinned for secure attachment...HKP-02414$0.00 -
Out Of Stock
H&K MP5 40/10 Complete Bolt Head
H&K Heckler & Koch
$0.00New HK German factory bolt head assembled and complete. No longer made and out of production get them while you still can. We have the last units available that HK has in stock. Brand new old stock German MP5 40, MP5 10mm bolt head complete. 100% German...HKP-00451$0.00 -
Out Of Stock
H&K MP5 40/10 FBI Trigger Group (0,1) - SEMI - Clipped & Pinned
H&K Heckler & Koch
$687.95H&K MP5 40/10 FBI Trigger Group (0,1) - SEMI - Clipped & Pinned As with all the ambidextrous trigger groups we offer, they are 100% factory German HK.HKP-00187$687.95 -
H&K MP5 40/10 Magazine Floor Plate
H&K Heckler & Koch
$14.95New HK German MP5/40 Magazine Floor PlateHKP-01269$14.95 -
H&K MP5 40/10 SEF Navy Style Trigger Housing - Clipped & Pinned
H&K Heckler & Koch
$159.95H&K MP5 40/10 SEF Navy Style Trigger Housing - Clipped & Pinned A perfect upgrade for your HK MP5 40/10 build. This is the only SEF-style housing available for the MP5 40/10 family of firearms. Each housing is professionally clipped and pinned...HKP-00445$159.95 -
Out Of Stock
H&K MP5 40/10 Thread Protector Cap
H&K Heckler & Koch
$0.00HK German Factory Thread Protector For All MP5 40/10 Factory HK Barrels. The Thread Pitch Is Metric 14 X.75HKP-00422$0.00 -
Out Of Stock
H&K MP5 9mm 0,1,2,F Trigger Group Complete - Used
H&K Heckler & Koch
$0.00Used PD Trade In HK German MP5 9mm (0,1,2,F) Trigger Group Complete. This Is A Hard Item To Find From HK Germany. Rare & Hard To Find In This Configuration.HKP-02565$0.00 -
Out Of Stock
H&K MP5 9mm 4 Position (S,E,3F,F) Trigger Housing - Push Pin - USED RARE
H&K Heckler & Koch
$0.00H&K MP5 9mm 4 Position (S,E,3F,F) Trigger Housing - Push Pin - USED RARE Discover a rare find with this HK MP5 ambidextrous pushpin trigger housing marked S, E, 3F, F (Safe, Semi, 3 Round Burst, Full). This used but well-preserved housing is a...HKP-20009$0.00 -
H&K MP5 9mm Ambidextrous Trigger Group (0,1,2) Pictogram
H&K Heckler & Koch
$3,299.95HK MP5 9mm (0,1,2) Only Pictogram Black Polymer Trigger Group Rare configuration and hard to find! Last unit we have on hand so get it while you can! Shown as 0,1,3 but the correct 0,1,2 trigger group.HKP-16684$3,299.95 -
Out Of Stock
H&K MP5 9mm Bolt Carrier Action 3
H&K Heckler & Koch
$0.00MP5 9mm Bolt Carrier Action 3 Designed to be used with the standard recoil assemblies from an MP5/94 model. Will work in clones and other factory-spec firearms.HKP-02549$0.00 -
Out Of Stock
H&K MP5 9MM Parts Kit 100% German - A2 Stock & 4 Position Lower
H&K Heckler & Koch
$0.00HK German MP5 9mm Used Parts Kit Complete - Less Receiver. All MP5 Kits: HK 3-Lug MP5 Barrel - cold hammer forged Cocking Tube Front Sight Tower Wide Fore arm - Black Bolt Group - MP5 Full Auto Push Pins - 1 Large and 2 Small 30 Round Curved Magazine -...HKP-00776$0.00 -
Out Of Stock
H&K MP5 9mm Semi & Semi Only Navy Style Trigger Housing - Clipped & Pinned
H&K Heckler & Koch
$0.00H&K MP5 9mm Semi & Semi Only Navy Style Trigger Housing - Clipped & Pinned Enhance your firearm with this HK trigger housing, designed to replicate the look and feel of a full-auto 3 position trigger group while operating in a semi-auto...HKP-00155$0.00