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 SL8, HK G36 Full Size Aftermarket Complete Bottom & Side Rail Set
USA
$69.95HK SL8/G36 Full Size Aftermarket Bottom & Side Rail Set Complete 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 identification. New and...HKP-00633$69.95 -
Out Of Stock
HK91, G3 Barrel - 7.62 / .308 - 17.7" - Threaded 15x1 RH
RCM
$264.95RCM HK G3/91 (7.62x51/.308) Barrel - Threaded 15x1 RH Made by RCM to the highest tolerances and finest material available. Perfect for that HK build or to replace that shot-out barrel. Each barrel counts as 1 US-compliant part as a bonus. These are...HKP-01136$264.95 -
HK416, MR556 Takedown Pin - Front - A1 Style
H&K Heckler & Koch
$64.95H&K HK MR556 Front Lower Receiver Locking Pin With Spring Loaded Detent This part is the front (large) takedown pin with ball detent and locking mechanism installed. The idea behind this type of system is to decrease the movement of the upper and...HKP-02663$64.95 -
On Sale
HK MP5 Receiver Flat - .40 S&W / 10mm
HKP HK Parts
Now: $194.95Was: $399.95MP5 40 & MP5 10mm Receiver Flat - USA The new and latest production with the weldment locations is already lasered and ready to go. This flat is the finest available for the MP5 40/10 family of firearms. Compatible With: MP5 .40 Cal MP5 10mm MP5 ...HKP-00767Now: $194.95Was: $399.95 -
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 -
HK MP5, HK33, HK53, HK93 Trigger Housing - SEF Navy - Polymer - Push Pin - 9mm, 5.56 / .223
H&K Heckler & Koch
$129.95H&K MP5 & 93/53/33 (9mm & 5.56/.223) SEF Navy Style Polymer Housing - Push Pin Upgrade your older SEF contoured trigger pack with this Navy Style polymer housing, designed to enhance the look and feel of your HK firearm. Specifications: Push...HKP-02462$129.95 -
HK33, HK93 - Rear Sight Assembly Complete
H&K Heckler & Koch
$39.95HK 93 & HK33 Rear Sight Assembly Complete - Used This is the complete assembly as it comes from HK for a 556/223 firearm.HKP-00706$39.95 -
HK MP5, MP5K Optic Mount - Raised - Picatinny
HKP HK Parts
$164.95HKP HK MP5/MP5K Raised Universal Optic Mount The HKP Raised Picatinny Optic Mount is designed for maximum versatility, providing a true universal mounting solution for red dot optics. Our optic mount utilizes the same footprint as the VP9 Optic...HKP-22219-M$164.95 -
On Sale
JMAC HK MP5 9mm Muzzle Device - Compatible With KeyMo Suppressors - Threaded 1/2x28
JMAC Customs
Now: $77.95Was: $99.95JMAC HK MP5 9mm Muzzle Device - Compatible With KeyMo Suppressors - Threaded 1/2x28 The360HDis the latest evolution in JMac's Custom's™Recoil Reduction Device™ (RRD)family of muzzle brakes, designed to meet the needs of serious shooters and...HKP-21256Now: $77.95Was: $99.95 -
HK 3 Round Count Burst Wheel for 4 Position Trigger Packs
H&K Heckler & Koch
$127.95H&K 3 Round Count Burst Wheel For 4 Position Trigger PacksHKP-01639$127.95 -
On Sale
HK91, G3, MP5 Ambidextrous Selector Lever - Right Side - Low Profile
HKP HK Parts
Now: $22.95Was: $39.95Low Profile, No Contact - Ambidextrous Selector Lever - Right Side This is the right side selector of the ambidextrous trigger packs that is low profile and does not interfere with the hand when the selector lever is in the fire, burst and F/A...HKP-17898Now: $22.95Was: $39.95 -
HK MP5, HK33, HK53, HK93, HK91, G3 Catch with Roller for SEF, Navy Trigger Packs - USED
H&K Heckler & Koch
$4.49Friction Sear-USED For SEF, Navy Trigger Packs hk335393, 91, G3, Used in excellent condition, HK German Friction Sear for SEF & Navy trigger packs. This item is also referred to as the catch with roller but more commonly called a sear.HKP-16197$4.49