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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HK MP5K, SP5K Folding Stock - 10"
Zenith
$99.95Zenith HK MP5K, SP5K, SP89 Folding Stock Folds to the side for compact storage while providing a solid, stable shoulder stock when deployed. No modifications required on in-spec MP5K receivers. Specifications: Polymer and fiberglass reinforced Weight:...HKP-22419$99.95 -
HK416, MR556, HK417, MR762 Pistol Grip
H&K Heckler & Koch
$89.99HK Heckler and Koch's Pistol Grip with Storage - Black HK German factory pistol grip with a storage compartment in the bottom. It has a superior fit and feel to any other grip on the market. This is a great upgrade for any AR, M16 platform. Compatible...HKP-22298$89.99 -
HK MP5K, SP5K Binary Trigger Group - SEF Navy - BFSIII - 9mm
FA Franklin Armory
$879.95Franklin Armory HK MP5K - BFSIII HK-C1 Binary SEF Navy Style Trigger Group In position 3 it will fire 1 round on pull and 1 round on release. With a 4.5 lb trigger pull, making this the fastest semi-automatic trigger on the market. The BFSIII™ is...HKP-20928-M$879.95 -
HK MP5, HK90 Series Pinned Hammer Strut
HKP HK Parts
$13.95HKP HK G3,91,PTR, 93,33 & MP5, 94 Pinned Hammer Strut New USA hammer strut for 90 series rifles and pistols. A perfect spare to have on hand. This is a pinned hammer spring shank. Perfect for your HK project or rebuild. Compatible With: HK trigger...HKP-20315$13.95 -
HK MP5, HK94 Grip Adapter - K Style
HKP HK Parts
$49.95HK Vertical K Grip Adapter For HK MP5 & HK94 (Adapter Only) This is the adapter needed to add an MP5K K grip to your HK94, MP5, or clone.HKP-00175$49.95 -
HK416, MR556 Adjustable Gas Block - 11-20" A1 Barrels - NA5
Nefarious Arms
$374.95Nefarious Arms - NA5 HK 416 Adjustable Gas Block Nefarious Arm user configurable 2-position adjustable gas block compatible with 11″ – 20″ A1 MR556 and HK416 barrels. Each gas block ships with 6 vent screws, a screwdriver,...HKP-21040$374.95 -
HK SL8, G36 Full Size Bottom and Side Rail Set, Complete - Aftermarket
USA
$69.95US made Full Size Aftermarket Complete Bottom and Side Rail Set for HK SL8 and HK G36 Comes with the bottom and 2 side rails, left and right, as well as the screws and Allen wrench. Made of aircraft-grade aluminum and laser marked for easy number...HKP-00633$69.95 -
Out Of Stock
B&T GHM9 Stock or Brace Adapter - Telescopic
B&T Brugger & Thomet
$510.00B&T GHM9 Telescopic Brace/Stock Adapter Switzerland manufactured telescopic brace adaptor for Gearhead Works Tailhook MOD 1. Tailhook is not included. ***Stabilizing braces sold by HK Parts are designed and intended for the exclusive application as...HKP-18946$510.00 -
HK416, MR556 Sling - Tactical - Black
H&K Heckler & Koch
$109.95H&K HK MR556/MR762/416/417 Tactical Sling - Black OEM HK German part. The tool is built into the HK sling hook. For the MR556 model, a sling adapter will be needed for the front attachment point as the MR556 lacks the ambi sling loop on the gas...HKP-00028$109.95 -
HK91, G3, HK33, HK53, HK93 Muzzle Protector Cap
H&K Heckler & Koch
$5.95H&K 93/53/33 & G3/91 5.56/.223 & 7.62x51/.308 Muzzle Protector Cap This cap covers the barrel end or flash hider to prevent debris, water, etc., from entering the barrel. The cap can be removed by hand or when the first round is fired with...HKP-13959$5.95 -
HK MP5, G36, UMP Sling - Factory - Ambidextrous - Black
H&K Heckler & Koch
$64.95Heckler and Koch Ambidextrous 25mm Wide Sling for HK MP5, G36, UMP - Black Ambidextrous 25mm wide black sling designed for HK platforms equipped with dual sling clip attachment points. Allows left or right side mounting similar to the factory HK green...HKP-00350$64.95 -
HK90 Series Trigger
H&K Heckler & Koch
$19.95H&K 90 Series Trigger New German 90 series Compatible With: HK91, G3, PTR HK93, 33, 53 HK MP5, 94, Zenith, POF, MKE Clone or other custom buildsHKP-18706$19.95