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 MP5, HK94, HK34 Barrel - 9mm - 12.7"- Threaded 1/2x28
RCM
$204.95RCM MP5, HK34, HK94 Barrel - 9mm - 12.7"- Threaded 1/2x28HKP-17762$204.95 -
HK91, G3 Buffer System - Enhanced
HKP HK Parts
$97.95HKP Enhanced Buffer System for HK91 and G3 HKP enhanced buffer system for HK91 and G3 pattern rifles. Built with a new steel buffer body, new buffer plunger, and a parkerized finish like factory...HKP-22866$97.95 -
Out Of Stock
HK416, MR556, AR-15 Grip with Beavertail and Finger Grooves
Other
$12.95DLG Tactical AR-15 Rubberized Grip with Beavertail Upgrade your AR platform with the DLG Tactical Rubberized Grip with Beavertail. Designed with ergonomic finger grooves, a beavertail backstrap, and...HKP-99447$12.95 -
Out Of Stock
HK91, G3 Trigger Shoe
H&K Heckler & Koch
$12.95HK G3 Trigger Shoe Factory Heckler and Koch G3 trigger shoe. Compatible With:HKP-22524$12.95 -
Out Of Stock
HK21E Cylinder Head Screw - Belt Feed Mechanism - RARE
H&K Heckler & Koch
$18.95HK21E Cylinder Head Screw - Belt Feed Mechanism - RARE Replacement cylinder head screw for the HK21E belt feed mechanism, manufactured to original specifications. Ensures proper fit, secure...HKP-99412$18.95 -
HK MP5K End Cap with Swivel Attachment
MKE
$69.95MKE End Cap with Swivel Attachment for HK MP5K Durable factory-style end cap designed for MP5K platforms. Provides a secure sling mounting point for MP5K pistols. <HKP-22373$69.95 -
Out Of Stock
HK416 Upper Receiver Kit - 10.4" - Date Coded - OTB - USED
H&K Heckler & Koch
$3,789.95H&K 416 10.4" Date Coded OTB Upper Parts Kit - USED Genuine HK 416 10.4″ date coded used upper parts kit with a factory German 10.4″ barrel with the new Over The Beach (OTB) features (vented gas...HKP-22193-M$3,789.95 -
HK G3 Lower Housing - SEF - Steel - Push Pin - SURPLUS
H&K Heckler & Koch
$49.95H&K G3 SEF Steel Lower Housing - Push Pin - SURPLUS Priced for ONE Housing Unit- Condition Varies by Unit - Sold Individually UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE<HKP-22159$49.95 -
HK416, MR556 Barrel - 5.56 - 9" - Threaded 1/2"x28 - PDW - A1 and A3
Nefarious Arms
$594.95Nefarious Arms HK 416C 9" Barrel The Nefarious Arms HK416/MR556 Barrel is built for shooters who demand precision, durability, and consistent performance. Made in the USA from 4150 chromoly steel,...HKP-21906$594.95 -
On Sale
CQT FX Simunition Conversion Kit for MP5 - 9mm Blue - USED
Simunition
Now: $202.46Was: $319.95CQT FX Simunition Conversion Kit for MP5 - 9mm - Blue - USED SHADES OF BLUE MAY VARYHKP-99054Now: $202.46Was: $319.95 -
HK MP5K Brace with Direct Fit Adapter - .40 S&W, 10mm
HKP HK Parts
$239.95HKP HK Parts Brace with Direct Fit Adapter for HK MP5K .40, 10mm Designed to adapt UMP style and SB Tactical braces directly to the 40,10 K platform. Made in the USA and available exclusively at HK...HKP-21835$239.95 -
HK MP5K Stock with Direct Fit Adapter - .40 S&W, 10mm
HKP HK Parts
$289.95HKP Stock with a Direct Fit Adapter HK MP5K .40 and 10mm Designed to adapt UMP style and B&T folding stocks directly to the .40, 10mm K platform. Made in the USHKP-21834$289.95