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 MP5K, AP5-P End Cap - Incomplete - BLEMISHED
MKE
Now: $19.95Was: $27.95MKE MP5K, AP5-P Incomplete End Cap - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. MKE manufactured end cap for AP5-P and HK MP5K pattern firearms...HKP-99397Now: $19.95Was: $27.95 -
On Sale
HK MP5, HK94 Tri-rail System Clone - USED
Fab Defense
Now: $125.95Was: $219.95Fab Defense HK MP5, HK94 Tri-Rail System Clone - USED ONLY 5 UNITS AVAILABLE - VARYING CONDITION SHOWN - SOLD INDIVIDUALLY One-piece tri-rail handguard system designed for HK MP5 and HK94 pattern firearms. Precision machined from aluminum, this rail...HKP-99371Now: $125.95Was: $219.95 -
HK G36C Parts Kit - with Rear Hinge Section - RARE
H&K Heckler & Koch
$5,495.95Heckler and Koch De-milled G36C Parts Kit with Rear Hinge Section - RARE Rare, original HK G36C de-milled parts kit with rear hinge receiver section. A true centerpiece for serious HK collectors and G36C enthusiasts. This is a one-time offering of...HKP-22486$5,495.95 -
HK416, HK417, MR556, 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 -
On Sale
HK MP5, HK90 Series Hammer Strut - USED
H&K Heckler & Koch
Now: $5.21Was: $9.95HK MP5, G3, 91, PTR, 93, 33, HK94 Hammer Strut - USED SOLD INDIVIDUALLY USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK German Hammer Strut for 90 series rifles and pistols. A perfect...HKP-15445-USEDNow: $5.21Was: $9.95 -
On Sale
HK91, G3 Bolt Locking Lever Set - USED
H&K Heckler & Koch
Now: $19.22Was: $24.95HK91, G3 Bolt Locking Lever Set - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This is the bolt carrier locking lever set that retains the bolt head to the carrier...HKP-02683-USEDNow: $19.22Was: $24.95 -
Compact Vertical Foregrip With Hand Stop - Picatinny
JMK
$98.95Compact Vertical Foregrip with Hand stop - Picatinny The JMK Vertical Foregrips are ideally suited for applications with restricted space. All grips are precision-machined from black walnut and complemented by a 6061 aircraft-grade aluminum handstop...HKP-22411-M$98.95 -
Rail Panel Cover - M-LOK - 6 Slot
JMK
$28.95JMK Rail Panel Cover - M-LOK - 6 Slot JMK M-LOK rail panels are compatible with platforms featuring 6 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-22404-M$28.95 -
HK G36 Folding Stock or Brace - HDA3
Haga Defense
$349.95HK G36 Folding Stock or Brace - HDA3 The HDA3 is a modular, USA-made stock or brace system developed by Haga Defense and A3 Industries. Built for strength, adaptability, and cross-platform compatibility, it delivers premium rigidity, smooth...HKP-22357-M$349.95 -
HK G3 Stock Cut Off Section - OD Green
FMP HK CONTRACT
$2.45HK G3 Stock Cut Off Section - OD Green De-milled G3 stock section. Manufactured by FMP on HK tooling. Compatible With: HK G3, HK91 In-spec. clones and custom buildsHKP-22376$2.45 -
On Sale
AK Binary Trigger - Curved - BFSIII - 9mm - BLEMISHED
FA Franklin Armory
Now: $385.99Was: $534.95Franklin Armory BFSIII AK-C1 - 9mm - Curved Trigger - BLEMISHED DAMAGED PACKAGING - PRODUCT UNAFFECTED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The Binary...HKP-19730-BNow: $385.99Was: $534.95 -
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