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 FMP G3 Rear Receiver Section - SURPLUS
FMP HK CONTRACT
$24.95H&K G3 Complete Parkerized Rear Receiver Section without Rear Sight - SURPLUS UNIT CONDITION WILL VARY Steel rear receiver section manufactured by FMP on HK tooling. Does not include the rear sight. Compatible with: HK G3, HK91 In-spec...HKP-22375$24.95 -
HK51, PTR PDW MOE PR Stock
Magpul
$249.95Magpul HK51, PTR PDW MOE PR Stock - Black Designed for the PTR PDW platform, this adapter ensures a precise fit and secure lockup for stock installation. Features: Secure lockup for repeatable seating and zero retention High-strength aluminum...HKP-22347$249.95 -
HK MP5 Selector Lever Extension - Used
H&K Heckler & Koch
$24.95H&K MP5 Safety Selector Lever Extension - Used Used factory original HK MP5 safety selector lever extension in good condition. This part affixes to the safety selector lever to extend the safety lever for easier actuation. This is a used part,...HKP-99317$24.95 -
HK MP5, MP5K Barrel Flute Cleaning Brush - 10mm / .40 S&W
HKP HK Parts
$24.95HKP HK Parts Cleaning Brush - Barrel Flute - 10mm / .40 S&W This is a must-have brush to keep the flute clean and the firearm running the way it should. Compatible With: HK MP5 10mm and .40 S&W HK MP5K 10mm and .40 S&WHKP-22318$24.95 -
On Sale
HK MP5, AP5 SEF Trigger Pack Housing - Semi Auto
MKE
Now: $84.95Was: $124.95MKE HK MP5/AP5 SEF Trigger Pack Housing MKE trigger pack Housing for semi-auto SEF trigger housing. OEM part for Century AP5. Compatible With: HK MP5, MP5K with SEF housing Century Arms AP5, AP5-P with SEF housingHKP-22259Now: $84.95Was: $124.95 -
HK91, G3 Sniper Trigger Group - AC Unity Grip - Match Trigger
HKP HK Parts
$644.85HK Parts Trigger Group with AC Unity Grip and Match Trigger for HK91 and HK G3 The HK G3 and HK91 match trigger group combined with the AC Unity grip is a great choice for anyone seeking a tactical and aesthetically pleasing build. Featuring a robust...HKP-22251$644.85 -
On Sale
HK UMP 3 Position Lower Grip Frame - Black - RARE - USED
HKP HK Parts
Now: $449.95Was: $699.95HK UMP 3 Position Lower Grip Frame - Black - RARE - USED ONLY 1 UNIT AVAILABLE - AS PICTURED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Used UMP Lower...HKP-99274Now: $449.95Was: $699.95 -
On Sale
HK SP5 2 Position Trigger Housing
Now: $59.95Was: $99.95HK SP5 2 Position Trigger Housing - USED CONDITION WILL VARY - SEE PHOTOS FOR EXAMPLES - SOLD INDIVIDUALLY Used 2 position (0,1) trigger housing for the SP5. Compatible With: HK SP5 THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE...HKP-99273Now: $59.95Was: $99.95 -
Century Arms AP51 Fixed Stock Backplate
HKP HK Parts / Heckler & Koch
$89.95H&K/HKP Century Arms AP51 Fixed Stock Backplate HKP's drop-in replacement backplate and recoil rod is expertly modified to fit the Century Arms AP51. Crafted to the precise length for optimal function and dependable performance, this backplate allows...HKP-22188$89.95 -
HK MP5 Stock Fork
H&K Heckler & Koch
$199.95H&K HK MP5/SP5 Stock Fork MP5 Replacement Stock Fork Section, expertly crafted in Germany. This robust fixed stock section boasts a classic forked design that guarantees exceptional shoulder support and enhanced control for your pistol. Whether you...HKP-22166$199.95 -
HK UMP Recoil Rod Spring
HKP HK Parts
$9.95HKP UMP Recoil Rod Spring Upgrade or replace your UMP recoil system with this high-quality recoil rod spring from HK Parts. Whether you're maintaining a factory setup or enhancing a custom build, the HKP recoil rod spring is a perfect fit for UMP-style...HKP-22089$9.95 -
HK417, MR762A4 Magazine Catch
H&K Heckler & Koch
$99.95H&K MR762 A4/417 Magazine Catch German-made magazine catch for MR762 A4 and HK417. Compatible With: HK MR762 A1/A4 HK417HKP-21961$99.95