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
HK417, MR762 Bolt Head, Complete - E1
H&K Heckler & Koch
Now: $536.95Was: $595.95Heckler and Koch 417 E1 Bolt Head - Complete Rare factory bolt head for the HK417. Compatible With: HK MR762 HK417HKP-22037Now: $536.95Was: $595.95 -
HK MP7 Lock Washer
H&K Heckler & Koch
$4.95H&K MP7 Lock Washer Factory lock washer for the MP7 platform. Specifications: Inside diameter: 4.10mm Outside diameter: 7.75mm Compatible With: HK MP7HKP-21978$4.95 -
HK21, HK21E, HK23, HK23E Double Frame Front Sight Base
H&K Heckler & Koch
$66.95H&K 21/21E/23/23E Double Frame Front Sight Base Original, unissued German double frame front sight bases. These have never been welded to a cocking tube and are perfect for completing or restoring your build with factory-spec parts. Compatible...HKP-21908$66.95 -
HK21E, HK23E Left Receiver Reinforcement Rail Weldment
H&K Heckler & Koch
$14.95H&K 21E/23E Left Receiver Reinforcement Rail Weldment Genuine German-made weldment for left-side receiver reinforcement rail. Precision-machined using the correct steel and milling for you HK21E or HK23E build. Compatible With: HK21E HK23EHKP-21907$14.95 -
On Sale
HK MP5, HK91, G3, HK33 Cocking Tube End Cap - Incomplete - BLEMISHED
H&K Heckler & Koch
Now: $21.95Was: $39.95H&K Cocking Tube End Cap/Dust Cap - BLEMISHED SOLD INDIVIDUALLY - VARYING CONDITION SHOWN INCOMPLETE COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This part...HKP-00099-BNow: $21.95Was: $39.95 -
HK MP5K Stock or Brace Adapter - .40 S&W, 10mm
HKP HK Parts
$113.95HKP HK Parts .40S&W and 10mm Brace and Stock Adapter for HK MP5K Easily attach your favorite A2 style stock to your MP5K 40, 10 with this durable, precision-engineered adapter. Made in the US and available exclusively at HK Parts. Compatible...HKP-21869$113.95 -
HK MP5, HK90 Series Trigger Pack Housing - Ambi- Semi-Auto
HKP HK Parts / Heckler & Koch
$248.95H&K 90 series Ambidextrous Trigger Pack Housing - Semi-Auto This German-made steel trigger pack housing is designed for ambidextrous trigger packs and selector levers. It starts as a factory F/A trigger pack, then is converted to semi-auto and coated...HKP-21868$248.95 -
HK MP5 Receiver Flat - 9mm - no Sling Clip
HKP HK Parts
$189.95HKP HK MP5 9mm Receiver Flat w/o Sling Clip The MP5 9mm receiver flat serves as the foundation for custom MP5 builds. This version does not include a sling clip cutout, offering flexibility for customization. Precision-engineered for compatibility with...HKP-21828$189.95 -
HK MR556 Barrel - 5.56 / .223 - 16" - Complete Upper
H&K Heckler & Koch
$989.95HK MR556 16" Complete Upper Barrel Factory HK MR556 16" barrel, complete with a factory-installed barrel nut, gas block and flash hider. Every component is brand new and meticulously crafted, guaranteeing top-notch quality. This barrel is the ultimate...HKP-21805$989.95 -
On Sale
HK 940 Barrel - .30-06
H&K Heckler & Koch
Now: $549.95Was: $948.95Heckler and Koch HK 940 .30-06 Rifle Barrel Genuine new HK 940 .30-06 barrel featuring date code and Ulm antler proof. These barrels are unfired and fully nitrided for a lifetime of use. These barrels are very rare and no longer in production...HKP-21605Now: $549.95Was: $948.95 -
HK MP5K Barrel - 10mm - Threaded 14x.75 with 3 Lug
RCM
$279.95RCM HK MP5K 10mm Barrel - Threaded 14x.75 Upgrade your MP5K with the RCM HK MP5K 10mm Barrel, featuring a precise 14x1.75 threading for optimal accessory compatibility. Expertly crafted to enhance performance and reliability, this barrel is perfect for...HKP-21155$279.95 -
Out Of Stock
HK11 LMG 7.62×51mm NATO Parts Kit
H&K Heckler & Koch
$0.00H&K HK11 LMG 7.62×51mm NATO Parts Kit HK 11 Parts Kit 7.62x51mm demilled to BATFE specs with 2 spare G3 aluminum magazines. The HK11 was built during the 70’s and 80’s. These are interchangeable with other HK Variants and can be...HKP-20912$0.00