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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H&K MP5/SP5/MP5K/SP5K 9mm Extractor Spring
H&K Heckler & Koch
$9.95H&K MP5, SP5, MP5K, & SP5K 9mm Extractor Spring This extractor spring will fit all of the 9mm HK variants including clones. This part is German HK factory manufactured and made to the tightest of specifications and tolerances and will provide a...HKP-00055$9.95 -
H&K 25 Round HK MP5 .22LR Magazine - Black
H&K Heckler & Koch
$49.95HK MP5 .22 - 25 Round Magazine Each magazine offers a 25-round capacity and fits all HK, Walther, Umarex MP5 A5 & MP5SD .22 rifles. Factory HK German manufactured magazines these are NOT aftermarket. Compatible With: MP5 .22 MP5SD .22 Please...HKP-02296$49.95 -
H&K 30 Round MP5 9mm Magazine
H&K Heckler & Koch
$78.95H&K German MP5, SP5, SP5K, and MP5K 9mm - 30 Round Curved Magazine - NEW Heckler & Koch German Magazine 9mm 30 Round curved all-steel magazine. German HK MP5 and MP5K mags are the finest HK magazines you can get. Compatible With: HK MP5,...HKP-00086$78.95 -
H&K 91/G3 (7.62x51/.308) 20 Round Aluminum Magazine - Used
H&K Heckler & Koch
$9.95HK G3, HK91 & PTR91 German 20 Round Magazine - Alloy - Used German manufactured aluminum paratrooper magazines used in. Perfect for your HK G3/PTR style firearm. Each unit is German manufactured and a great deal for the condition of these mags as...HKP-18068$9.95 -
On Sale
HKP HK UMP (.45 ACP) 25 Round Magazine
HKP HK Parts
Now: $34.95Was: $49.95HKP HK UMP (.45 ACP) 25 Round Magazine Made from advanced polymer material with steel feed lips just like the German UMP 45 magazine. Compatible With: HK UMP .45 LWRC SMG .45 (This magazine is the factory OEM magazine for the LWRC SMG 45) Gideon...HKP-16448Now: $34.95Was: $49.95 -
Zenith 30 Round HK MP5, MP5K 9mm Magazine
Zenith
$34.9530 Round Magazine - Zenith - MP5, MP5K This is one of the best magazine option to have on hand as they have been known to be reliable and at a great price! You can never have enough magazines for your MP5 or MP5K. Buy in bulk and save big. While...HKP-20671$34.95 -
FMP MP5, MP5K Extractor Spring
FMP
$4.95FMP MP5, MP5K Extractor Spring New old stock HK contract FMP extractor spring will fit all of the 9mm HK variants including clones. This part was made using HK prints on HK contract tooling that the German HK factory manufactured for the Portuguese...HKP-18201$4.95 -
On Sale
HKP MP5K/SP89/SP5K Vertical Grip
HKP HK Parts
Now: $14.95Was: $29.95MP5K, SP89, SP5K Vertical "K" Grip - USA HK vertical grip for the HK MP5K models. Made in the USA and counts as one US made 922r compliant part. The finest US made forearm available. Compatible With: MP5K, MP5K-PDW, SP89 & SP5K...HKP-16474Now: $14.95Was: $29.95 -
H&K Rifle Extractor Spring For All HK's
H&K Heckler & Koch
$6.74HK German 308/7.62 & 556/.223 Rifle Extractor Spring New factory HK German part. The extractor spring is the number 1 replaced item on HK firearms. Many HK gunsmiths recommend upgrading MP5/94 series HK's with this longer/stronger silver spring vs...HKP-00188$6.74 -
HKP MP5 & MP5K 9mm Dual Magazine Clamp
HKP HK Parts
$29.95HKP MP5 & MP5K 9mm Dual Magazine Clamp The MP5 and MP5K magazine grip or dual magazine clamp fits all 9mm MP5 or MP5K curved, steel magazines. This part holds two magazines together for ease of use and easy access to 2 magazines. It is made in...HKP-00084-M$29.95 -
H&K Small Push Pin - Forearm & Lower
H&K Heckler & Koch
$8.95H&K Small Push Pin - Forearm & Lower All steel HK German small push pin for use on the lower grip housing. The small push pin is also the correct pin for holding the HK forearm in place. Compatible With: HK91, G3, PTR HK93, 33, 53 HK MP5, 94,...HKP-00075$8.95 -
Fixed Stock - OD Green - Surplus - HK 91, G3, PTR
H&K Heckler & Koch
$25.95Fixed Stock - OD Green - Surplus - HK 91, G3, PTR Used Olive Drab green German surplus stock complete. Ready to install on your HK or clone rifle. Used in perfect working condition. Each stock includes all parts to be a complete stock ready to use on...HKP-16329$25.95 -
KCI 30 Round MP5 9mm Magazine
KCI
$39.99 - $44.95Korean 30 Round MP5, MP5K Magazine - GEN 2 - KCI USA Compatible With: HK MP5, HK94, MP5SD, HK SP5 HK MP5K, SP89, SP5K Zenith, Century AP5, MKE, POF & Omega, PTR In Spec 94, MP5 & MP5K, SP89 Style Clones Features: Latest generation and factory...HKP-00955-M$39.99 - $44.95 -
H&K Ejector Lever Spring
H&K Heckler & Koch
$6.95H&K Ejector Lever Spring The new HK German factory ejector lever spring fits all HK 90 series of rifles and pistols. This is a common repair and replacement part and it is a recommended spare part for every HK enthusiast or shooter. Compatible...HKP-00059$6.95 -
H&K 91/G3/MSG90 (7.62x51/.308) 20 Round Magazine - Aluminum - EXCELLENT/LIKE NEW
H&K Heckler & Koch
$16.95HK G3, HK91, & PTR91 German 20 Round Magazine - Alloy German Manufactured Aluminum Paratrooper Magazines In Excellent - Like New Condition Perfect for your HK G3/PTR style firearm. Each unit is German manufactured, and a great deal for the condition...HKP-00524$16.95 -
H&K 91/G3 (7.62x51/.308) Slimline Forearm - Jungle Green - Used Good
H&K Heckler & Koch
$14.95H&K 91/G3 (7.62x51/.308) Slimline Forearm - Jungle Green - Used Good Used German Military surplus jungle green Slimline Forearm with Heat Shield. Each item is used in good shape and will clean up nicely with a little bit of TLC and some attention...HKP-16266$14.95 -
H&K Roller Retainer Spring - Action 3
H&K Heckler & Koch
$6.74H&K Roller Retainer Spring - Action 3 This part is the second-generation roller holder. Each retainer fits all "action 3" 9mm MP5 & MP5K bolt heads & MP5 40/10 bolt heads. The roller retainer spring is a common repair and replacement item and...HKP-00068$6.74 -
HKP MP5, SP5, HK94 Wide Forearm
HKP HK Parts
$25.95HKP MP5, SP5, & HK94 Wide Forearm - USA This MP5 forearm is also known as the tropical wide forearm. Made from the same polymer material to factory HK specs in the US. Compatible With: MP5, HK94 MP5 40/10 Zenith, AA, MKE, POF MAC-5 clones...HKP-02312$25.95 -
H&K 30 Round HK 416 .22LR Magazine - Black
H&K Heckler & Koch
$34.95HK, Umarex, Walther, HK416 - .22LR Magazine - 30 Round Magazine - BLACK Heckler & Koch Factory magazines are made to H&K specifications and tolerances using high quality materials that provide perfect fit, durability and reliability. Expect...HKP-19834$34.95 -
HKP G3/33/91/93 All Steel Folding Bipod
HKP HK Parts
$87.95HKP G3/33/91/93 All Steel Folding Bipod Finally, an aftermarket solution for HK enthusiasts after that bipod to finish out their build. The HK Parts bipod was painstakingly developed to replicate the original HK offering as close as possible. ...HKP-20834$87.95 -
HKP 1st Gen Roller Retainer Plate To Spring Upgrade
HKP HK Parts
$9.95HKP 1st Gen Roller Retainer Plate To Spring Upgrade This action 3 roller retainer spring for all 1st Generation bolt heads replaces the oval-shaped roller retainer plate. HK made a wire spring as an upgrade for later production bolt heads to improve the...HKP-02119$9.95 -
H&K 91/G3 (7.62x51/.308) Ejector Lever - Used
H&K Heckler & Koch
$3.95.308 Ejector Lever - Used In perfect working order, pulled from surplus HK German G3's. Compatible With: HK G3 HK 91 PTR-91 HK 51HKP-01738$3.95 -
HKP Small Push Pin - Forearm & Lower
USA
$6.95HK Small push pin - US MAde All steel small push pin for use on the lower grip housing for a push pin style of lower housing. Black nitride finish which adds extra durability to the pin plus corrosion and abrasion resistance. The small push pin is also...HKP-20397$6.95 -
HKP Rear Sight Tool For Diopter Sights
HKP HK Parts
$29.95HK Diopter Rear Sight Tool - Military Contract Diopter sight tool is perfect for those that need to adjust all sizes of HK diopter type sights for the entire family of HK rifles including clones. A military contract over-run and mil-spec quality at the...HKP-16511$29.95 -
H&K 9mm Ejector Lever - 3rd Gen
H&K Heckler & Koch
$69.95H&K 9mm Ejector Lever - Latest Generation The German latest generation ejector has all of the upgrades and improvements made since the MP5 was introduced over 50 years ago. Fits all of the HK 9mm variants. Stamped, formed, heat treated,...HKP-00058$69.95 -
On Sale
BDM 50 Round HK MP5 .22LR Magazine Drum - Translucent
BDM Black Dog Machine
Now: $79.95Was: $99.95HK MP5 .22 50 Round Drum Magazine For The MP5-A5 & MP5-SD .22 Rifle Made in the USA by BDM exclusively for HK Parts. Using an existing drum model that is tried and true. Compatible With: HK, Walther, Umarex MP5 & MP5SD .22 rifles. MP5...HKP-16235Now: $79.95Was: $99.95 -
HKP HK 416, Colt M4 .22 Match Trigger Upgrade Spring Kit
HKP HK Parts
$17.49HK 416 .22 & Colt M4 - .22 Match Trigger Spring Kit - Set of 3 Enhanced Springs: The HK Parts Match drop-in spring upgrade set will enhance your HK 416's trigger pull to an even smooth, crisp, and lighter pull that will promote better control,...HKP-17340$17.49 -
H&K HK G3, HK 91 Grip for Metal Frames - OD Green - Surplus
H&K Heckler & Koch
$9.95H&K HK G3, HK 91 Grip for Metal Frames - OD Green - Surplus Used in surplus condition. Each item is used in good shape and will clean up nicely with a little bit of TLC and some attention. A great value for the price. Compatible...HKP-16333$9.95 -
HKP HK MP5 RMR / Holosun Optic Mount - Black
HKP HK Parts
$97.95MP5 - RMR / Holosun Optic Mount The finest mounting solution to properly mount your RDS on your MP5 or any other receiver that utilizes the same style mounting system. With our 3 piece optic mount, it makes installation a breeze. No need to damage your...HKP-20731$97.95 -
MI HK MP5/K, SP5/K Scope Mount Picatinny Rail
MI Midwest Industries
$80.95Top Picatinny Rail - MI HK MP5 and MP5K Specifications: Easy no gunsmith install, all tools included Allows the user to mount an optic and a light or laser while retaining the factory handguard Patent-pending rock-solid design Weight 3.3oz. Constructed...HKP-19368$80.95 -
HKP HK MR556/HK416 FFRS Retaining Spring
HKP HK Parts
$4.99HKP HK MR556/HK416 FFRS Retaining Spring The retainer spring retains the handguard locking pin on the free floating rail system (FFRS). These can become damaged with the removal of the handguard screws. Once the spring is damaged, they require...HKP-21503$4.99 -
H&K 20 Round HK VP9, HK P30 9mm Complete Magazine - Black
H&K Heckler & Koch
$59.00HK VP9 &P30, P30L, P30S - 9mm - 20 Round Magazine Complete New HK German Manufactured & Factory Fresh Production. Each factory HK magazine holds 20 rounds for use in all VP9, P30, P30L, P30S 9mm Models. Each magazine is marked with the factory 20...HKP-18917$59.00 -
HKP MP5 Replacement Buffer for Folding Stock or End Cap
HKP HK Parts
$3.49HKP MP5 Replacement Buffer for Folding Stock or End Cap Spare replacement buffer for choate folding stocks or end caps. Compatible With: Choate MP5 and MP5K Stocks or End Caps (NOT compatible with MP5 .22 LR)HKP-18735$3.49 -
On Sale
SB Tactical MP5 & SP5 Folding Brace
SB Tactical
Now: $99.95Was: $119.95SBT5A Side Folding Brace For The HK MP5, SP5 model Features: Each brace comes assembled ready to install no assembly required Made in the USA B&T inspired design & styling The finest folding pistol brace option for your HK MP5 model Seamless...HKP-18017Now: $99.95Was: $119.95 -
MFI Ultra Low Profile Red Dot Mount - Aimpoint/Primary Arms/Vortex/Burris
MFI
$110.95MFI Ultra Low Profile Red Dot Mount - Aimpoint, RMR Style Red Dots The new MFI Ultra Low Profile Mount perfect for smaller red dot options The MFI ultra low profile scope mount offers the lowest profile of any HK scope mount on the planet. The MFI UL...HKP-17962$110.95 -
RennSteig 8 Piece Punch Set For HK Firearms
RennSteig
$34.95Metric Parallel Pin Punch Set With Guide Sleeves - German Manufacture - 8 Piece This punch set is the exact same set used in the HK Armorer classes and approved by HK for use when installing & removing the roll pins from HK pistols & rifles...HKP-16737$34.95 -
HKP HK 416 Pistol Brace Adapter/AR .22LR Stock Adapter
HKP HK Parts
$34.95HKP HK 416 Pistol Brace Adapter/AR .22LR Stock Adapter Specifications: Made in the USA Easy to install no gunsmithing required machined from solid billeted alloy Hard coat anodized for a lifetime of use Compatible With: AR 22, HK /Walther 416 ...HKP-17442-M$34.95 -
SB Tactical HK MP5, HK SP5 Retractable Pistol Stabilizing Brace - Black
SB Tactical
$329.95SB Tactical HK MP5, HK SP5 Retractable Pistol Stabilizing Brace - Black The HK MP5, SP5 pistol stabilizing brace is 3-position fully adjustable pistol brace and is comprised of a billeted 6061 alloy hard-coat anodized aluminum adapter, steel...HKP-19161$329.95 -
HK/Walther/Colt .22LR Threaded Barrel Adapter - Converts 8x.75 To 1/2x28
USA
$29.95HK/Walther/Colt .22LR Threaded Barrel Adapter - Converts 8x.75 To 1/2x28 This custom adapter allows you to easily convert your .22LR barrel from 8x.75 to 1/2x28 threads. It replaces the stock flash hider and provides a secure, permanent mounting option...HKP-01845$29.95 -
MP5, SP5 - A2 Fixed Stock-Black
$179.95MP5 A2 Fixed Stock - US Made Each stock counts as one US-made compliant part. Perfect for that build where you require a US-made part to be compliant. This is the finest US-made MP5 stock, as it has a rubberized backplate to reduce the felt...HKP-02314$179.95