HK Rifle / SMG Parts
Elevate Your HK Rifle with Premium Parts – MP5, HK416, SP5, and More!
Enhance your HK rifle with top-notch parts and accessories. From HK MP5 and HK MP5K to HK SP5 and HK UMP or HK 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, HK SP5K, HK G36, or HK MP5 22, we have the Heckler and Koch rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.
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On Sale
HK Trigger Pack Ejector Lever Axle - USED
H&K Heckler & Koch
Now: $12.95Was: $19.95HK Trigger Pack Ejector Lever Axle - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK German ejector lever axle pin for all HK trigger packs. This is the factory correct axle pin that holds the...HKP-01091-USEDNow: $12.95Was: $19.95 -
HK MP5, MP5K Folding Stock or Brace - HDA3
Haga Defense
$349.95HDA3 Stock and Brace for MP5K, SP5K The HDA3 is a modular, USA-made stock and brace system developed by Haga Defense and A3 Industries. Built for strength, adaptability, and cross-platform compatibility, it delivers premium rigidity, smooth...HKP-22355-M$349.95 -
HK MP5 Optic Mount - .22LR - Raised - Aimpoint ACRO
HKP HK Parts
$119.95HKP HK MP5 .22LR Aimpoint ACRO Sight Mount - Raised Height MP5 .22LR raised height mount for the Aimpoint ACRO mounting interface. Our ACRO mounts provide an unobstructed view of the factory HK sights through the mount giving the shooter the best of both...HKP-22248-M$119.95 -
HK MP5K Handguard Conversion - SD Style
HKP HK Parts
$299.95HKP HK MP5K SD Handguard Conversion Transform your MP5K into a stunning MP5KSD with our revolutionary MP5K SD handguard conversion! This cutting-edge drop-in handguard is expertly designed to give your standard MP5K the iconic suppressed SD look...HKP-22201$299.95 -
HK416A5, MR556 Barrel - 5.56 / .223 - 11"
H&K Heckler & Koch
$424.95Heckler and Koch 11" Barrel for HK416A5, MR556 A4, MR556 A5 Factory German 11" HK416A5, MR556 barrel. Cold hammer-forged and built to HK’s standard for durability, accuracy, and service life. The 1:7 twist rate stabilizes a wide range of 5.56 NATO...HKP-21932$424.95 -
On Sale
HK MP5 Length Project SF Trigger Housing - USED SURPLUS - Gunsmith Special
USA
Now: $19.95Was: $59.95HK MP5 Length Project SF Trigger Housing - USED SURPLUS - Gunsmith Special MP5 length trigger housing perfect for projects or custom builds, each marked with the SE pictogram. The condition will vary from part-to-part vs. the pictured unit. Please Note:...HKP-99103Now: $19.95Was: $59.95 -
M-Lok Paraclip Sling Mount
Magpul
$19.95Magpul M-Lok Paraclip Sling Mount The M-LOK Paraclip Sling Mount is a steel clip-in sling mount for M-LOK compatible systems. It is constructed of high-grade, precision cast steel and has an extremely durable QPQ salt bath nitride finish. With a...HKP-21874$19.95 -
HK MP5K, AP5-P Trigger Group
MKE
$479.95Century AP5-P, AP5-M Trigger Group This trigger group serves as a direct replacement for AP5-P, AP5-M, Zenith clones, and factory MP5K receivers. For customers needing compatibility with shelfed receivers, we also offer a clip-pin service as an optional...HKP-21668$479.95 -
HK416, MR556 Cleaning Kit - Green Pouch
H&K Heckler & Koch
$64.95H&K HK 416/MR556 Cleaning Kit with Green Pouch This is a genuine HK factory cleaning kit. Includes: Nylon storage bag, olive green Nylon brush Cleaning rod, 6 parts Barrel brush Chamber brush Oil brush Oil bottle, empty Cleaning wipes, 50 ea...HKP-21623$64.95 -
B&T G36 (5.56/.223) Flash Hider with Interface for Rotex
B&T Brugger & Thomet
$144.99B&T G36 (5.56/.223) Flash Hider with Interface for Rotex Compatible With: HK G36 HK93, HK33 5.56/.223 firearms threaded 15X1 RH Specifications: Made in Switzerland Threaded 15x1 RH Does not include face shimsHKP-21531$144.99 -
Out Of Stock
HK G36, 36K NAR Mounting Rail
B&T Brugger & Thomet
$339.95B&T HK G36/G36K NAR Mounting Rail with Emergency Sight B&T NAR (picatinny compatible) mounting rail for HK G36/G36K with emergency sight. Compatible With: HK G36 HK G36KHKP-21529$339.95 -
HK UMP 5 Prong Flash Hider - 5/8x24
HKP HK Parts
$67.95HKP HK UMP 5 Prong Flash Hider - 5/8x24 Compatible With: HK UMPHKP-21523$67.95