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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Out Of Stock
HK MP5, MP5K Telescopic Buttpad
B&T Brugger & Thomet
$190.00B&T HK MP5, MP5K Telescopic Buttpad - Brace Conversion B&T replacement stock buttpad. Also used to convert B&T's telescopic brace to a stock (BT-200601) Compatible With: HK MP5 HK MP5K MAC-5 clones may require custom fitment...HKP-21384$190.00 -
Out Of Stock
HK416, MR556, HK417, MR762 Pistol Grip Screw
H&K Heckler & Koch
$9.95H&K HK MR556/MR762/416/417 Pistol Grip Screw This is the screw used to retail all battle grips/pistol grips on the HK and standard AR15 and M16 firearms. Compatible With: HK MR556 HK416 HK MR762 HK417HKP-02679$9.95 -
HK416, MR556, HK417, MR762 Bridge
H&K Heckler & Koch
$24.95Heckler and Koch HK416, HK MR556, HK417, and MR762 Bridge For Lowers Compatible With: HK416, MR556 HK417, MR762HKP-02676$24.95 -
HK91, G3 Magazine Catch
H&K Heckler & Koch
$19.95Heckler and Koch Magazine Catch for HK G3 and HK91 High-quality HK German production units are brand-new. These also have the proper newer style cut in them and round shafts. Compatible With: HK91, G3 PTR91HKP-02073$19.95 -
HK91, G3 M4 Stock, Complete
PTR
$234.95PTR HK 91/G3 (7.62x51/.308) M4 Stock Complete AR15/M16 retractable stock combo set up for use on an HK91, G3 & PTR91 style of rifles. This is a perfect compliment for those that want to use an AR M4 style stock on your HK rifle or SBR. Each stock set...HKP-16142$234.95 -
Out Of Stock
HK53, HK51 Handguard - Full Length
H&K Heckler & Koch
$59.95H&K HK53/HK51 Handguard - Full Length H&K German manufactured HK51 and HK53 polymer handguard. This handguard is the proper length to cover the extended portion of the trunnion found on the HK53 and HK51 style of firearms. Compatible...HKP-00468$59.95 -
HK MP5 Bolt Catch Lever - .40 S&W, 10mm
H&K Heckler & Koch
$74.95H&K Heckler & Koch Bolt Hold Open Lever - German HK - New for MP5 40, MP5 10 A great upgrade for the out-of-spec and sub-par quality part found on clone builds. Compatible With: MP5 40 MP5 10mm MP5 .357 Sig MP5 9 X 25 DillonHKP-01471$74.95 -
Out Of Stock
HK91, G3, PTR Magazine - 10 Round - Alloy
H&K Heckler & Koch
$37.95H&K HK91, G3, MSG90 10 Round Magazine - Alloy This part counts as 1 US-made part for 922r compliance for HK rifles. Manufactured by HK and converted to ten round capacity in the United States using a US-made floorplate. Compatible With: HK91 HK...HKP-22418$37.95 -
HK MR556 A4 Upper Receiver Kit - 16.5″ - 5.56 - M-LOK
H&K Heckler & Koch
$1,939.00H&K MR556 A4 16.5″ 5.56 M-LOK Upper Receiver Kit This kit includes a complete upper receiver/barrel assembly, allowing Mil-Spec 5.56mm AR-style rifles to be retrofitted to HK’s piston and pusher rod system. This system utilizes a piston...HKP-21909$1,939.00 -
Out Of Stock
HK G36, SL8 Front Sight Screw - Extended - Dual and Single Optics
USA
$5.95Single Optic Front Sight Screw - G36 - Extended This is a required part if you want to install either the dual or single optic. Compatible With: HK G36 HK SL8HKP-20894$5.95 -
HK MP5, SP5 Trigger Housing - AR - 9mm
Magpul
$299.95Magpul HK MP5/SP5 9mm AR Trigger Housing With our new MP5 AR style trigger housing you can have the desired Navy pictograph look with the versatile options of trigger guards to fit your shooting style and the option of storage inside the magpul grip...HKP-20727-M$299.95 -
HK G36, SL8 Firing Pin - All Variants
H&K Heckler & Koch
$59.95HK German G36/SL8 Firing Pin This is a great spare to have on hand. The firing pin fits all G36, G36K, G36C & SL8 variants. Compatible With: HK G36/G36K/G36C HK SL8HKP-00289$59.95