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
CZ Scorpion Binary Trigger - Curved - BFSIII
FA Franklin Armory
Now: $449.99Was: $495.95Franklin Armory CZ Scorpion - BFSIII - Binary Trigger The BFSIII for CZ Scorpion is a 3-Position Trigger. In position 3 it will fire 1 round on Pull and 1 round on Release. This makes it the fastest semi-automatic trigger on the market. The BFSIII is...HKP-18881Now: $449.99Was: $495.95 -
HK MP5, HK33, HK93 Stock or Brace Adapter - ACE Style
HKP HK Parts
$99.95ACE Adapter for HK MP5 and HK 93 Each ACE adapter is made from a solid billet of CNC machined aircraft grade aluminum. Properly buffered with factory correct "H" buffers to protect your expensive firearm. This is the finest ACE adapter available period...HKP-18504$99.95 -
HK416, MR556, AR-15 Pistol Grip - Ambi Safety Compatible
UTG PRO
$14.95UTG PRO AR-15 Pistol Grip with Beaver Tail - Ambi Safety Compatible Made in the USA, the UTG PRO AR-15 Pistol Grip is designed with ergonomic palm swells, a beavertail, and finger grooves for a secure, consistent hold and improved comfort...HKP-99448$14.95 -
HK416, MR556, HK417, MR762 Cylindrical Head Screw
H&K Heckler & Koch
$19.95Heckler and Koch Cylindrical Screw for MR762, HK417, MR556, HK416 Factory replacement cylindrical lens-head Allen screw for maintaining or repairing your HK417 and MR556 rifles with original-spec hardware. Compatible With: HK417, MR762 HK416, MR556HKP-22433$19.95 -
M-LOK Angled Foregrip - Walnut
JMK
$43.95JMK Angled foregrip M-LOK - Walnut JMK's M-LOK covers feature an integrated hand stop to ensure a secure grip during use. They are an excellent choice for pairing with JMK M-LOK Covers, providing your build with a high-quality finish. These covers are...HKP-22405-M$43.95 -
Rail Panel Cover - M-LOK - 3 Slot
JMK
$18.95 - $23.95JMK Rail Panel Cover - M-LOK - 3 Slot JMK M-LOK rail panels are compatible with platforms featuring M-LOK slots. These modular panels are suited for numerous applications. Each panel is sold individually. M-LOK panels are CNC-machined from solid...HKP-22403-M$18.95 - $23.95 -
HK MR556 A4 Hammer - Incomplete - Semi-Auto
H&K Heckler & Koch
$43.95Heckler and Koch Hammer for HK MR556 Semi-Auto rifles Factory-original German steel hammer for MR556 A4 rifles. Designed as a direct replacement for worn or damaged hammers in MR556 A1 and A4 trigger assemblies. Compatible With: MR556A1 MR556...HKP-22384$43.95 -
AP51 MOE PR Stock - PDW
Magpul
$249.95Magpul Century AP51 PDW MOE PR Stock Designed for the Century AP51 PDW platform, this adapter ensures a precise fit and solid lockup for stock installation. Built for durability and proper alignment, it maintains correct stock geometry and function...HKP-22346$249.95 -
HK91, G3 Metal Trigger Housing Conversion Kit - AC Unity Grip
HKP HK Parts
$189.95HK91, G3 Metal Trigger Housing Conversion Kit - AC Unity Grip This kit includes everything you need to convert a polymer HK91 or G3 trigger group a robust metal housing. Simply use your existing semi-auto SEF trigger pack to complete the conversion. This...HKP-22322$189.95 -
On Sale
HK G36K Lighted Handguard - Used - Rare
Surefire
Now: $589.95Was: $1,349.95Surefire HK G36K Handguard - Used - Rare SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. This authentic Surefire handguard for the HK G36K is a rare find with only a few units available. A great collector’s...HKP-22210Now: $589.95Was: $1,349.95 -
Century Arms AP51 Fixed Stock Backplate
HKP HK Parts / Heckler & Koch
$89.95H&K/HKP Century Arms AP51 Fixed Stock Backplate HKP's drop-in replacement backplate and recoil rod is expertly modified to fit the Century Arms AP51. Crafted to the precise length for optimal function and dependable performance, this backplate...HKP-22188$89.95 -
HK MR762 A4 Handguard - Complete
H&K Heckler & Koch
$349.95Heckler and Koch HK MR762 A4 Complete Handguard Factory HK handguard with a 12 o’clock Picatinny rail and M-LOK slots at 3, 6, and 9 o’clock for mounting optics and accessories. Includes dual QD sling sockets for ambidextrous sling use...HKP-21972$349.95