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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On Sale
HK MP5 Trunnion - .40 S&W, 10mm - Factory - USED
H&K Heckler & Koch
Now: $223.46Was: $549.95H&K MP5 40/10 Factory Trunnion - USED ONLY 1 UNIT AVAILABLE - AS PICTURED Used genuine German trunnion with round guides. Compatible With:HKP-99173Now: $223.46Was: $549.95 -
HK MR762 A4 Hammer
H&K Heckler & Koch
$40.95Heckler and Koch Hammer for HK MR762 A4 Rifles Factory-original German steel hammer for the MR762 A4. Designed as a direct replacement for worn or damaged hammers in MR762 A4 trigger assemblies...HKP-21968$40.95 -
HK91, G3, PTR Magazine Spring - 5 Round
H&K Heckler & Koch
$22.95H&K 91/G3/MSG90 5 Round Magazine Spring This factory HK spring is designed for the 5-round HK91, G3, and MSG90 magazines. Built for durability and reliable feeding, it's an essential replacement part...HKP-21827$22.95 -
HK MP5K Stock or Brace Adapter - .40 S&W, 10mm
HKP HK Parts
$129.95HKP HK Parts Brace and Stock Adapter for HK MP5K .40, 10mm Add your favorite brace or stock to your 40 or 10mm MP5K with the HK Parts stock adapter. Designed to adapt UMP style and B&T folding...HKP-21832$129.95 -
HK21 Sling Mount for Barrel Shroud
H&K Heckler & Koch
$38.95Heckler and Koch Barrel Shroud Sling Mount for your HK21 Features: German-made spring steel sling clip Designed for the HK21 and HK21-A1 barrel shroudHKP-21820$38.95 -
On Sale
HK UMP, USC 4 Piece M-LOK Set - Cerakote
HKP HK Parts
Now: $89.22Was: $139.95HKP HK UMP/USC 4 Piece M-LOK Set - Cerakote Upgrade your UMP/USC with the HK Parts 4-piece M-LOK set. This kit significantly expands the range of attachments you can add to your UMP/USC receiver,...HKP-21664-MNow: $89.22Was: $139.95 -
HK MP5K Barrel - .40 S&W - Threaded 14x.75 with 3 Lug
RCM
$279.95RCM HK MP5K .40 S&W Barrel - Threaded 14x.75 - 3-Lug This is the ultimate US-made barrel for any new or conversion build for the MP5K .40 cal. Crafted from top-grade CHF 41v40 material, it’s machined...HKP-21585$279.95 -
Out Of Stock
HK MP5, SP5 Binary Trigger Group - SEF Navy - BFSIII
HKP HK Parts / FA Franklin Armory
$1,499.95COMING SOON! Franklin Armory BFSIII HK-C1 – Trigger Group - RAL 8K 3 Position 2 round burst style Engraved Pictograph – HK Binary Trigger Group Our latest and greatest BHKP-21160$1,499.95 -
G3 Backplate, Incomplete
H&K Heckler & Koch
$29.95G3 Incomplete Backplate Factory German G3 refinished backplate. This backplate was fully reconditioned and Parkerized for a factory look. A great replacement or spare to have around to replace your...HKP-20859$29.95 -
On Sale
Remington 700 - 20 MOA - Scope Base Long Action - Tungsten
Tactical Precision MFG
Now: $29.06Was: $76.99TPM Remington 700 Scope Base Long Action 20 MOA These tight tolerance, bomb proof scope rail allows the shooter to make the best use of the scope's elevation adjustment for those long-range shots and...HKP-20781Now: $29.06Was: $76.99 -
HK MP5K-PDW German Parts Kit - 4 Position Trigger Group
H&K Heckler & Koch
$7,199.95HK MP5K-PDW German Parts Kit: Rare and ultra desirable MP5K-PDW parts kit. In good to like new condition with a factory marked HK folding stock and the ultra desirable 4 position 0, 1 , 3 , F burst...HKP-20759$7,199.95 -
HK MP5 Bolt Carrier - Full Auto - .40 S&W, 10mm - Tungsten
H&K Heckler & Koch
$449.95New HK German MP5 40/10 Factory F/A Bolt Carrier This is the latest and greatest version of the MP5 40 and MP5 10mm carrier. No longer in production or manufactured. Tungsten filled German HK and the...HKP-19390$449.95