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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Zenith 30 Round HK MP5 Monkey Supersonic Labeled Magazine
Zenith
$43.95Zenith 30 Round HK MP5 Monkey Supersonic Labeled Magazine Easily identify a magazine loaded with supersonic rounds versus a magazine loaded with subsonic rounds. Feautres: Durable electro-plated black finish for exceptional corrosion resistance All...HKP-20915$43.95 -
On Sale
B&T Tactical Sling - HK MP5, SP5
B&T Brugger & Thomet
Now: $92.95Was: $109.95B&T Tactical Sling 2nd Generation A great sling for a host of weapon systems. Perfect for the MP5, MP5K, HK91, HK93, etc. The B&T sling features an HK sling hook for ease of use & a dynamic sling system.HKP-16900Now: $92.95Was: $109.95 -
Blitzkrieg HK MP5 Flat Front Sight Gen 2 - Orange
Blitzkrieg Components
$84.95Blitzkrieg HK MP5 Flat Front Sight Gen 2 - Orange The Blitzkrieg Gen 2 HK-style front sight introduces a new level of precision and visibility. With a conventional flat-tipped post and a bright orange stripe, this sight ensures quick and clear target...HKP-21101$84.95 -
CFG MP5, MP5K Low Profile Rear Sight Base Mount - 5 Slot
CFG
$99.95CFG MP5, MP5K Low Profile Rear Sight Base Mount - 5 Slot This new offering is a neat low profile offering that allows the user to replace the rear sight and add an extremely low profile super robust picatinny optic mount to your HK MP5, MP5K firearm...HKP-18235$99.95 -
Choate HK MP5K/SP89 & Zenith Model Z-5P/Z-5K M4 Telescoping Stock - Black
Choate
$239.95Choate HK MP5K/SP89 & Zenith Model Z-5P/Z-5K M4 Telescoping Stock - Black The telescoping stock for the H&K MP5K / SP89 and Zenith Firearms models Z-5P and Z-5K replaces the existing stock and gives the shooter the ability to change the length of...HKP-19893$239.95 -
Franklin Armory HK MP5 - BFSIII HK-C1 – Binary Trigger Group – SEF – Contoured
FA Franklin Armory
$1,299.95Franklin Armory HK MP5 - BFSIII HK-C1 – Binary Trigger Group – SEF – Contoured 3 Position – Pictogram – HK Binary Trigger Group for HK MP5/SP5 and MP5 push pin Binary triggers count as 4 922r compliant components. The...HKP-20004-M$1,299.95 -
H&K 91/G3 (7.62x51/.308) Fixed Stock with Enhanced Heavy Buffer - Alpine Green - Surplus
H&K Heckler & Koch
$129.95HK German Surplus G3, 91, PTR Stock Complete with Enhanced Heavy Buffer Installed - Alpine Green The Alpine green stock was the last version that the German military produced and is the darkest green version available. All stocks are 90's...HKP-18934$129.95 -
Out Of Stock
H&K 91/G3 (7.62x51/.308) Shell Deflector - Weld On
H&K Heckler & Koch
$18.95New HK German G3, 91, PTR91 Steel Case Deflector - Weld On This steel weld-on addition for the G3 military rifle was developed to help fellow soldiers from hitting each other with hot spent brass and deflect the brass forward of the shooter at...HKP-12747$18.95 -
H&K G36/SL8 (5.56/.223) Cocking Handle
H&K Heckler & Koch
$55.95HK Cocking Handle For G36 & SL8 Bolt CarriersHKP-01853$55.95 -
H&K HK G3 & HK91 Buffer Spring - Surplus
H&K Heckler & Koch
$4.95HK G3, 91 Buffer Spring - Surplus This is the factory buffer spring for the rear stock buffer found on the G3, HK91, 93 A2 style stocks. This is a used excellent shape spring. A great replacement to have on hand for your worn out buffer spring...HKP-20319$4.95 -
H&K HK MR762/417 Castle Nut For Buffer Tube - Black
H&K Heckler & Koch
$39.95MR762, HK417 Castle Nut, Receiver Extension Nut For Buffer Tube New HK German manufacture and the factory correct offering with the proper installation screws and staking guides. Compatible With: HK MR762 HK 417HKP-16768$39.95 -
H&K HK MR762/417 Complete Buffer
H&K Heckler & Koch
$129.95MR762, HK417 Complete Buffer Specifications: Weight: 6.1 Oz Overall length: 3.20" OD: 1.18"HKP-16769$129.95 -
Out Of Stock
H&K HK SL8 Complete Rear Sight
H&K Heckler & Koch
$99.95H&K HK SL8 Complete Rear Sight This item can be used on other applications as well as the SL8, G36 models.HKP-16354$99.95 -
H&K MP5 & HK94 9mm Complete Bolt Head
H&K Heckler & Koch
$349.95HK German MP5 & HK94 Used Bolt Head Complete There are only a few available as they are now considered "restricted import items" by HK.HKP-01881$349.95 -
H&K UMP (.40 S&W/.45 ACP/9mm) Release Lever Spring
H&K Heckler & Koch
$9.95HK UMP Release Lever Spring For All UMP LowersHKP-01891$9.95 -
Out Of Stock
H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Safety Selector Lever (0,1,F)
H&K Heckler & Koch
$19.95HK UMP & G36 Left Side Safety Selector Lever With Axle - 3 Position Navy Compatible With All Navy 3 Position Lowers (0,1,F): HK UMP HK G36HKP-01889$19.95 -
HKP 10 Round HK 416/COLT M4 .22 Magazine Spring
HKP HK Parts
$2.95HKP 10 Round HK 416/COLT M4 .22 Magazine Spring A good supply of spare mag springs is a must. These are ideal to have on hand as the spring can become damaged or worn out. New production mag spring for your Walther/Umarex 416 & Colt 10 round 22 LR...HKP-14542$2.95 -
HKP 25 Round HK UMP 40 25 Round Magazine - FDE
HKP HK Parts
$49.95HKP 25 Round HK UMP 40 25 Round Magazine - FDE Made from advanced polymer material with steel feed lips just like the German UMP 40 magazine at a fraction of the cost. Compatible With: HK UMP .40 LWRC SMG .40 (This magazine is the factory OEM...HKP-20519$49.95 -
On Sale
HKP HK MR556/416 Upper 8" 416C Style Conversion Kit w/ Handguard
HKP HK Parts
Now: $1,119.95Was: $1,495.95MR556 & HK416 Upper Conversion Kit - 8" - HK 416C Style Finally an answer for all of those that have been wanting as close to the original HK 416C 8" barrel conversion kit for 416 or MR556. Each upgrade kit is as close as you can get to a factory HK...HKP-18628Now: $1,119.95Was: $1,495.95 -
HKP HK UMP Floor Plate - Black
HKP HK Parts
$9.95HKP HK UMP Floor Plate - Black Compatible With: UMP .45 UMP .40 UMP 9mm These can become cracked or broken with use or drops onto hard surfaces. Made in the USA and counts as 1 US compliant part.HKP-17161$9.95 -
HKP HK21E/23E Rear Sight Base
HKP HK Parts
$38.95HKP HK21E/23E Rear Sight Base US manufactured billeted from solid ordnance grade bar stock. Each unit is precisely machined to factory tolerances. Requires post installation machining to accommodate a scope. Compatible With: HK21E HK23EHKP-21467$38.95 -
Muzzle Device Shim Kit - 1/2x28
Rugged Suppressors
$9.95Rugged Suppressors Muzzle Device Shim Kit - 1/2x28 This kit includes 3 varying thickness shims to time your muzzle device to your desired orientation. ***BE SURE TO REMOVE CRUSH WASHERS IF PRESENT TO PREVENT STRIKES***HKP-21455$9.95 -
RCM MP5K/SP5K/SP89 9mm Barrel - Non-Threaded 3-Lug
RCM
$149.95RCM MP5K/SP5K/SP89 9mm Barrel - Non-Threaded 3-Lug This is the only US-made non-threaded barrel that uses the same steel and Cold Hammer Forged (CHF) process as Heckler & Koch. Precision-milled to the latest MP5KN PDW specifications with...HKP-01764$149.95 -
On Sale
B&T SIG SG 551 Handguard
B&T Brugger & Thomet
Now: $439.95Was: $549.95B&T Handguard 4x NAR for SIG SG 551 Specifications: Color: Black Height max: 68.7 mm Length max: 289.5 mm Length of top rail: 250 mm Length of right rail: 250 mm Length of left rail: 250 mm Length of bottom rail: 250 mm Material: Aluminum NATO...HKP-16871Now: $439.95Was: $549.95 -
F5 MFG 50 Round HK MP5/MP5K 9mm Drum - OD Green
F5 MFG
$199.0050 Round Drum - 9mm - OD Green - MP5, MP5K HK MP5 & MP5K 9mm - 50 Round Drum New 3rd generation redesigned version. Now offered at an even lower price! You asked for it and the long-awaited and highly anticipated MP5 50 Round Drum Magazine designed...HKP-19216$199.00 -
H&K 91/G3 (7.62x51/.308) Slimline Forearm - Jungle Green - Used Excellent
H&K Heckler & Koch
$29.95H&K 91/G3 (7.62x51/.308) Slimline Forearm - Jungle Green - Used Excellent Used in excellent shape. These are a nice addition to the collection. Compatible With: All full forearm length HK 91, G3, PTR style firearmsHKP-19042$29.95 -
H&K HK G36K Forearm - Black
H&K Heckler & Koch
$139.95HK G36K Forearm With Hand Stop & Heat Shield- German HK New HK German latest production HK G36K forearm that has the hand stop and heat shield installed. Also a popular forearm choice for those doing the SL8 to G36 conversions. Has the mounting...HKP-00617$139.95 -
H&K HK MR556/416 Enhanced Field Cleaning Kit
H&K Heckler & Koch
$169.95HK HK416/ MR556 (all variants & models) field cleaning kit- Enhanced Cleaning kit made both the HK 416, MR556 series of rifles and MG's. Includes: Saf-T-Clad Cleaning Rod HK Carbon Scraping Tool Accessory Adapter Section #8-32 Patch Holder Chamber...HKP-17061$169.95 -
H&K HK MR556/416 Fire Control Detent Stop Pin
H&K Heckler & Koch
$20.95H&K HK MR556/416 Fire Control Detent Stop Pin HK German.HKP-15272$20.95 -
H&K HK MR762, HK 417 Free Floating DMR Rail System - Black
H&K Heckler & Koch
$949.95HK MR762, 417 Extended Free Floating Rail System - Black New Heckler & Koch MR762, HK 417 & G28 Extended DMR (designated marksman rifle) Forearm With Flip Up Front Sight & Suppressor Window Cutout. Optimized design to mitigate the heat...HKP-17706$949.95 -
H&K HK SL8 Cheek Piece Riser
H&K Heckler & Koch
$34.95HK German SL8 Cheek Piece Riser Compatible with all HK SL8 models.HKP-01701$34.95 -
H&K HK SL8/G36 Front Sight - Black
H&K Heckler & Koch
$19.95HK German SL8/G36 (G36,G36K,G36C & SL8) Front Sight Post - New This item is the replacement polymer front sight post for the HK sight rails.HKP-00638$19.95 -
H&K UMP (9mm) Extractor
H&K Heckler & Koch
$60.95New HK German USC/UMP 9mm Extractor This is the perfect spare part to have for your UMP or USC 9mm conversion. Hard to find and only available here at HKPARTS.HKP-00266$60.95 -
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Cocking Lever
H&K Heckler & Koch
$24.95HK UMP & USC Cocking Lever New HK German part. Compatible With: HK UMP HK USCHKP-01884$24.95 -
H&K USC/SL8 (.45 ACP/5.56/.223) Left Selector Lever
H&K Heckler & Koch
$11.95H&K USC/SL8 (.45 ACP/5.56/.223) Left Selector Lever HK German USC, SL8 left side selector lever 2 position 0,1 Safe, Semi only. Compatible With: HK SL8 HK USCHKP-02506$11.95 -
HK UMP/USC (.45 ACP) Extractor
$39.95HK UMP & USC .45 Extractor Perfect for spares as they are prone to breakage and are a common wear item. Please Note: HK considers this a high wear and replacement item. Once removed from the carrier, the spring tension is compromised,...HKP-02623$39.95 -
HKP 30 Round HK UMP 9mm Magazine - FDE
HKP HK Parts
$49.95HK UMP 9mm magazine - FDE UMP 30 round magazine for the UMP. Each magazine features enhanced steel feed lips, and a 30 round magazine capacity. Each magazine counts as 3 U.S. Made compliant parts as an added bonus! This is the finest magazine offering...HKP-20481$49.95 -
HKP HK MP5 (.40 S&W) Locking Roller -6
HKP HK Parts
$11.95HK US MP540 Undersized Locking Roller, -6 The proper roller size is essential for headspacing the bolt gap correctly. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you...HKP-17566$11.95 -
HKP HK MR556/MR762/416/AR-15 Titanium Take Down Pin Set
HKP HK Parts
$29.95AR15, M4, MR556, MR762, AR10 Enhanced Take Down Pin Set Front & Rear - Titanium Custom ultra strong pure titanium front and rear take down pin set. Each set included both the front and rear pins for any AR mil-spec style lower. Compatible...HKP-17936$29.95 -
HKP MP5 40/10 Magazine Release Paddle Lever
HKP HK Parts
$59.95HK MP5 40 & MP5 10mm - Magazine Release LeverHKP-01274$59.95