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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Barrel Chamber Flute Cleaning Brush - 5.56 / .223
H&K Heckler & Koch
$29.95New HK German .223/5.56 Chamber Flute Cleaning Brush This item is ideal to have on hand for cleaning the flutes of the barrel. The flutes have to remain clean for the rounds to be extracted properly.HKP-00464$29.95 -
HK MP5K, SP89, SP5K End Cap with Sling Swivel - 9mm - H&K
H&K Heckler & Koch
$99.95HK Factory German MP5K, SP-89, & SP5K End Cap With Sling Swivel Each pistol end cap is OEM HK German MP5K and MP5K-N and has the HK German factory buffer. Compatible With: MP5K SP89 SP5K MP5K-N MP5K-PDW MP5K Clone Or Other Custom BuildsHKP-00394$99.95 -
HK UMP, USC, G36 Flat Trigger
HKP HK Parts
$99.95HKP HK UMP/USC & G36 Flat Trigger Our flat trigger has spaced out serrations at the face of the trigger for a superior grip. Chamfered edges prevent the trigger face serrations from cutting into the operator's hands over prolonged range sessions...HKP-20766-M$99.95 -
HK91, G3 Clubfoot Stock with Enhanced Heavy Buffer
Michaels Machines
$429.95US Michaels Machines Clubfoot Stock for HK G3, HK91, PTR-91, and Clones U.S clubfoot stock comes fully assembled and ready to drop onto your HK G3, HK91, PTR or other HK style firearm. Enhanced heavy buffer installed for optimum performance. The enhanced...HKP-20068$429.95 -
HK416, MR556, HK417, MR762 Pistol Grip - V1
H&K Heckler & Koch
$79.95H&K 416/417 & MR556/762 V1 Battle Grip - Black This is a great upgrade for any AR15, M16/416 platform. New factory German HK manufacture. Compatible With: HK 416/MR556 HK 417/MR762 HK M27 HK G28 AR-15, M4, & M16 PlatformsHKP-01023$79.95 -
HK416, MR556 Piston Guide - Threaded - Upper Receiver
H&K Heckler & Koch
$19.95Heckler and Koch Upper Receiver Threaded Piston Guide for HK MR556 and HK416 Compatible With: HK416, MR556 M27HKP-02640$19.95 -
HK G36C, G36K Gas Piston - US
GSG9
$74.95GSG9 complete gas piston for HK G36C and G36K - US made This is a popular part for those upgrading to an HK SL8 to HK G36K or HK36C barrel length. Each piston counts as one 922r compliant part. Made in the USA. Features: New USA manufactured gas piston...HKP-18253$74.95 -
HK91, G3 Rear Sight Drum - Used
H&K Heckler & Koch
$4.95HK German Rear Sight Drum For .308/7.62 - Used Used surplus genuine Heckler & Koch German manufactured product. Rare and hard to find. Most come in good shape but could use a good refinish. Used and range from good - exc shape. Compatible With: HK...HKP-18093$4.95 -
HK MP5, SP5K Buffer, Folding Stocks and End Caps
H&K Heckler & Koch
$24.95H&K MP5/SP5/MP5K/SP5K Replacement Buffer For Factory End Cap or Folding Stock This item is a Heckler & Koch Genuine Part, used to replace the factory HK buffer on MP5/SP5/MP5K/SP5K folding stocks and end caps. This is only usable on the factory...HKP-01233$24.95 -
HK MP5SD Locking Piece - 115 Degree - 9mm
H&K Heckler & Koch
$179.95HK German MP5SD Factory Locking Piece MP5 "action" SD locking piece is the current factory-correct locking piece for the MP5SD. For optimal results, use the action 3 or F bolt head for the most reliable feeding and extraction. These upgrades work...HKP-00135$179.95 -
HK Extended Right Side Ambidextrous Selector Lever
H&K Heckler & Koch
$59.95HK German Right Side Ambidextrous EXTENDED (ESSL) Lever New German HK extended selector lever for the right side of all ambidextrous trigger packs. Works with all ambi left side HK selector levers. Compatible With: MP5, 94 MP5 clone and custom...HKP-18875$59.95 -
Binary Safety Selector Set - Ambidextrous - Extended
HKP HK Parts
$89.95HKP Ambi ESSL Housing Franklin Armory Binary Selector Set - Levers Only HK Parts extended safety selector Selector Lever Set, expertly modeled after the HK Ambi Style Selector Lever. This premium product is designed to integrate seamlessly with the...HKP-21616-M$89.95