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 UMP Armorer Manual - 9mm / .40 S&W / .45 ACP
HKP HK Parts
$19.95HK UMP Armorer Manual This is the most in-depth manual available for the UMP series and covers the UMP 45, 40, & 9mm calibers. It has 64 Pages with diagrams and in-depth coverage of the history and full mechanical diagrams of the UMP firearm.HKP-00612$19.95 -
HK MP5, SP5 Binary Trigger Group - Navy Pictogram
Magpul / FA Franklin Armory
$859.95 - $889.95Magpul SL HK MP5 Binary Trigger Group: Latest and greatest trigger group option for those looking for a binary option and the added comfort of the Magpul housing. We take a Magpul SL housing, our compatible binary selector levers, and complete it with a...HKP-21406-M$859.95 - $889.95 -
HK MP5K, SP5K, HK91, G3 Series Binary Trigger - Curved - BFSIII
FA Franklin Armory
$629.99Franklin Armory BFSIII HK-C1 Binary Trigger Pack for HK MP5K, HK SP5K, HK91, and HK G3 The BFSIII™ for HK 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...HKP-18434$629.99 -
HK416, MR556, HK417, MR762 Handguard Locking Screw - X Style
H&K Heckler & Koch
$29.95Heckler and Koch Handguard Locking Screw for your HK416, MR556, HK417, MR762 Replacement handguard locking screw that secures the handguard to the upper receiver. This version features the "X" allowing the bolt head or HK sling hood tool to be used for...HKP-02680$29.95 -
HK G3K Locking Piece #18 - 50 Degree
RCM
$49.95RCM HK G3K Locking Piece #18 - 50 Degree The #18 LP is the factory-correct locking piece for G3K style builds or other custom builds. The locking piece is the timing mechanism that a delayed roller lock firearm uses to tell the firearm when to unlock and...HKP-02522$49.95 -
HK MP5 Flash Hider - 9mm - 3 Lug
H&K Heckler & Koch
$157.95HK Heckler and Koch's 9mm Flash Hider - 3-Lug This part attaches to the end of any factory specification 9mm 3-lugged barrel. This flash hider does not require the use of threads as it attaches to the 3-lug tip, this is also a great addition for any of...HKP-00082$157.95 -
On Sale
HK MP5 Handguard - Wide
AC-Unity
Now: $14.45Was: $18.95AC-Unity HK MP5 Wide Handguard Made by AC-Unity with advanced, German made polymer-resin/granulate that is both lightweight and shock/UV resistant. This state of the art polymer is formulated to withstand temperatures from -30°C to 120°C...HKP-21637Now: $14.45Was: $18.95 -
HK91, G3 Magazine Loader
Maglula
$29.95HK91, G3, PTR .308 LULA Mag Loader For those that have used Maglula products they offer the best mag loaders on the planet. Features: Loads a round a second, can unload the entire 20 round magazine in less than 3 seconds Safe on fingers and magazine...HKP-16228$29.95 -
HK Universal Angled Fore Grip - M-LOK
Magpul
$28.95Magpul - M-LOK AFG (Angled Fore Grip) The Magpul M-LOK AFG (Angled Fore Grip) is the result of research and refinements done to the original AFG and AFG-2. By integrating the direct-attach M-LOK mounting system with minimalist construction we were able...HKP-17267$28.95 -
HK MP5SD Barrel Port Cleaning Brush Replacement Cartridge
HKP HK Parts
$38.75HKP MP5SD Replacement Cartridge for Barrel Port Brush Replacement cartridge for HK MP5SD barrel port brush. Our replacement cartridge is compatible with factory HK barrel brush assemblies. Compatible With: HK MP5SDHKP-21294$38.75 -
HK416, MR556, MR762, G36 Extractor Spring
H&K Heckler & Koch
$8.95H&K MR556/MR762/416/G36 (5.56/.223) & (7.62x51/.308) Extractor Spring A must-have replacement wear part and a great item to have on hand. Compatible With: HK G36 HK G36K HK G36C HK SL8 HK MR556 HK 416 HK MR762HKP-00288$8.95 -
HK UMP Magazine Body - .45 ACP - 25 Round
HKP HK Parts
$34.95UMP 45 25 Round Magazine Body Only - USA Made New US made UMP .45 cal 25 Round Factory Mag Body. Each magazine body will fit all HK UMP factory firearms as well as the HK USC's that have been converted to accept UMP magazines. Each magazine is made in...HKP-17020$34.95