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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Fixed Stock - OD Green - Surplus - HK 91, G3, PTR
H&K Heckler & Koch
$25.95Used 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 your HK G3, 91, PTR or other HK style firearm. As...HKP-16329$25.95 -
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 much...HKP-00055$9.95 -
HK UMP (.45 ACP) 25 Round Magazine
HKP HK Parts
$49.95HK UMP 45 magazine & LWRC SMG45. Made from advanced polymer material with steel feed lips just like the German UMP 45 magazine. This UMP 45 magazine will fit all HK UMP 45 firearms as well as the LWRC SMG 45 and other UMP style builds such as...HKP-16448$49.95 -
H&K 91/G3 (7.62x51 / .308) Ejector Lever - Used
H&K Heckler & Koch
$3.95Used Heckler & Koch genuine factory .308 ejector lever. In perfect working order pulled from surplus HK German G3's.For use with: HK G3 HK 91 PTR-91 HK 51HKP-01738$3.95 -
FMP MP5, MP5K Extractor Spring
FMP
$4.95New 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 Military and police forces. This...HKP-18201$4.95 -
H&K 91/G3 (7.62x51 / .308) 20 Round Aluminum Magazine - Used
H&K Heckler & Koch
$7.95HK 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...HKP-18068$7.95 -
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 -
On Sale
HKP MP5K/SP89/SP5K 9mm Vertical Grip
HKP HK Parts
Now: $22.95Was: $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. Perfect item for the following applications: MP5K, MP5K-PDW, SP89...HKP-16474Now: $22.95Was: $29.95 -
H&K Small Push Pin - Forearm & Lower
H&K Heckler & Koch
$7.95H&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$7.95 -
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 #1 most common repair and replacement item on HK firearms. Many HK gunsmiths recommend using this extractor spring on all HK 90 Series HK's...HKP-00188$6.74 -
H&K 25 Round HK MP5 .22LR Magazine - Black
H&K Heckler & Koch
$34.95HK MP5 .22 - 25 Round Magazine Brand New HK/Walther German manufactured for the HK MP5 22 & MP5 22SD .22 rifle. Each magazine offers a 25 round magazine capacity & fits all HK, Walther, Umarex MP5 A5 & MP5 SD .22 rifles. A good...HKP-02296$34.95 -
H&K Sling Loop For Front Sight Tower
H&K Heckler & Koch
$9.95H&K Sling Loop For Front Sight Tower This HK OEM item is brand new and not surplus or used. This is a must-have item for all of your re-barrel jobs, or for when you need to mount a sling loop to an HK build. This item is offered at the best price in...HKP-00144$9.95 -
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 capsHKP-18735$3.49 -
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
$12.95HK 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$12.95 -
Mag-Grip MP5 & MP5K 9mm Dual Magazine Clamp
$29.95Mag-Grip MP5 & MP5K 9mm Dual Magazine Clamp The MP5 and MP5K magazine grip or dual magazine clamp fits all 9mm MP5 or MP5K curved magazines. This part holds two magazines together for ease of use and easy access to 2 magazines. It is made...HKP-00084$29.95 -
H&K HK G3, HK 91 Grip for Metal Frames - OD Green - Surplus
H&K Heckler & Koch
$9.95HK German Green Plastic Grips For The HKG3,HK91 & HK93, HK33 Metal Grip Frames. 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. Fits all HK...HKP-16333$9.95 -
HKP MP5, SP5, HK94 Wide Forearm
HKP HK Parts
$25.95Wide Forearm For All MP5 & HK94 Variants - USAThis MP5 forearm is also known as the tropical wide forearm. Made from the same polymer material to factory HK specs in the the US. Each handguard is marked US on the inside location to prove that the...HKP-02312$25.95 -
Out Of Stock
Small Push Pin - Forearm & Lower
USA
$5.95HK Small push pin - US MAde All Steel US Made 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...HKP-20397$5.95 -
H&K 91/G3 (7.62x51 / .308) Slimline Forearm - Jungle Green - Used Good
H&K Heckler & Koch
$14.95Used German Military Surplus Jungle Green Slim Line 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. Conditions range from Good to Excellent shape. For the money these are a...HKP-16266$14.95 -
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 CompleteNew 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 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 -
HKP Rear Sight Tool For Diopter Sights
HKP HK Parts
$29.95HK Diopter Rear Sight Tool - Military ContractDiopter 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 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 -
On Sale
MI HK MP5/K, SP5/K Scope Mount Picatinny Rail
MI Midwest Industries
Now: $59.95Was: $80.95Top Picatinny Rail - MI HK MP5 and MP5K 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 of 6061...HKP-19368Now: $59.95Was: $80.95 -
MFI HK MP5 .22 Scope Mount - Black
MFI
$109.95Low Profile Scope Mount For All HK MP5 .22's (HK/Walther/Umarex) & ATI GSG-5's Pistol or RiflesThe MP5 .22 mount is the only mount made specifically for the MP5 & GSG5 .22 models. The fitment is perfect!Just released the latest second generation...HKP-02389$109.95 -
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 -
H&K 30 Round HK 416 .22LR Magazine - Black
H&K Heckler & Koch
$29.95HK, 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$29.95 -
IMI 32 Round Uzi 9mm Magazine - German Military
IMI
$39.95Uzi 32 Round 9mm Magazine - IMI Factory Original Israeli IMI all steel production, 32rd 9mm magazines produced for the German army. These magazines were military only not comercial which makes them a awesome and desireable magazine. Conditions...HKP-14472$39.95 -
Out Of Stock
H&K 30 Round HK MP7 4.6 x 30mm Magazine - Black
H&K Heckler & Koch
$0.00MP7 30 Round MagazineNew factory German HK 30 round magazine for the 4.6 X 30mm HK MP7A1 & MP7A2 weapon system. This is the most popular spare magazine option as it is not to large and not to small of capacity.HKP-02455$0.00 -
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...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 -
H&K 90 Series Pinned hammer
H&K Heckler & Koch
$29.95Hammer, Full Auto HK 90 Series Trigger Packs - German HK - UsedGerman HK Hammer Used surplus in VG-EXC shape and in perfect working order. With the proper hole on the hammer to pin the strut in place. This hammer is the hammer that is most commonly used...HKP-18305$29.95 -
KCI 30 Round MP5 9mm Magazine
KCI
$39.95 - $44.95Korean 30 Round MP5, MP5K Magazine - GEN 2 - KCI USA Compatible With: HK MP5, HK94, MP5 SD, 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$39.95 - $44.95 -
HKP Rear Stock Pin Bushing Weldment
HKP HK Parts
$3.95HK Rear Stock Push Pin Bushing WeldmentAll Steel rear stock pin bushing weldment for welding in the rear of the flat. This bushing welds into the folded flat and guides the large push pin through the receiver to hold the stock to the receiver. Once...HKP-17573$3.95 -
H&K Barrel Retaining Pin - 5mm Standard Size
H&K Heckler & Koch
$9.95H&K Barrel Retaining Pin - 5mm Standard Size Each barrel pin is used for installing a new or replacement barrel. HK suggest using a new factory barrel pin when installing or reinstalling a HK barrel. We also offer the HK oversized barrel pins for...HKP-00071$9.95 -
HK German Butt Stock Push Pin
$8.95HK German Butt Stock Push Pin Each large stock push pin is used to retain the stock to the receiver on the 90 series of firearms. These are great replacement or spare parts to keep on hand as they fit all of the 90-series firearms below. The large...HKP-00076$8.95 -
H&K 20 Round HK MR762/417 7.62/.308 Magazine - Black
H&K Heckler & Koch
$59.00HK MR762, HK417 - 20 Round MagazineGenuine HK MR762/417 20 round magazine. This is the factory OEM magazine for the new HK 7.62 X 51mm rifles. Factory fresh & hard to find. This is the highest magazine capacity available for the MR762 and HK417...HKP-01700$59.00 -
BDM 50 Round HK MP5 .22LR Magazine Drum - Translucent
BDM Black Dog Machine
$99.95HK MP5 .22 50 Round Drum Magazine For The MP5-A5 & MP5-SD .22 Rifle Made in the USA by BDM exclusively for HKPARTS. Using an existing drum model that is tried and true. Fits all HK MP5 .22 variants: HK, Walther, Umarex MP5 & MP5 SD .22...HKP-16235$99.95 -
H&K 30 Round MP5 Magazine Spring
H&K Heckler & Koch
$6.95HK MP5 30 Round Magazine Spring - German The MP5 30-round spring is a must-have replacement spring for all HK MP5 curved magazines. HK factory springs have been known to help cure worn, weak, or aftermarket magazine springs that do not feed well and...HKP-00089$6.95