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 G3 Lower Housing - SEF - Steel - Push Pin - SURPLUS
H&K Heckler & Koch
$49.95H&K G3 SEF Steel Lower Housing - Push Pin - SURPLUS Priced for ONE Housing Unit- Condition Varies by Unit - Sold Individually UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE Used German-made SEF steel lower housing for the G3...HKP-22159$49.95 -
On Sale
HK MP5 Roller Standard 8mm - .40 S&W, 10mm - BLEMISHED
H&K Heckler & Koch
Now: $12.95Was: $20.95H&K MP5 40/10 Standard 8mm Roller - BLEMISHED MEASURED 8.00mm ROLLER MARKED INCORRECTLY. PACKAGING MAY NOT REFLECT PRODUCT. CONDTION MAY VARY. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL...HKP-00338-BNow: $12.95Was: $20.95 -
On Sale
HK MP5 Trigger Housing - Burst 3 Position 0,1,3 Pictogram - Push Pin - USED - BLEMISHED
H&K Heckler & Koch
Now: $109.95Was: $199.95H&K MP5 3 Position Burst (0,1,3 Pictogram) Trigger Housing - Push Pin - USED - BLEMISHED CONDITION MAY VARY. SEE PHOTOS. SOLD INDIVIDUALLY. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL...HKP-02697-BL-BNow: $109.95Was: $199.95 -
HK MG3 50 Round Assault Drum
H&K Heckler & Koch
$27.95H&K MG3 50 Round Assault Drum H&K manufactured 50-round drum for the MG3. Unissued, but may have light marks or dust from long-term storage. Clips onto MG3 feed trays. With minor modifications, these can be run on HK21, HK21E, and HK51B setups...HKP-22090$27.95 -
HK91, G3, HK33, HK53, HK93 Paddle Magazine Release - Anti-Rattle - USED
H&K Heckler & Koch
$42.95Heckler and Koch Anti Rattle Paddle Magazine Release for HK91, HK G3s and HK33, HK53, HK93 - USED This is a used German anti-rattle paddle mag release for installation on all Heckler and Koch Firearms .223 and .308 rifles. Compatible With: HK91,...HKP-22061$42.95 -
HK MP5K Folding Stock with Adapter - .40 S&W, 10mm
HKP HK Parts
$239.95HKP HK MP5K .40,10mm Folding Stock with Adapter Genuine H&K UMP folding stock completely assembled with the HK Parts stock adapter. CNC machined aircraft grade aluminum with QD sling attachment point. Available exclusively at HK Parts. Compatible...HKP-21893$239.95 -
HK416, MR556 Facemount KeyMount (KeyMicro) - 360HD 1/2-28 FD
JMAC Customs
$124.95JMac Customs 360HD 1/2-28 FD Facemount KeyMount (KeyMicro) The JMac Customs 360HD is a high-performance muzzle device designed for superior durability, recoil mitigation, and compatibility with suppressors. Engineered with 360° ports for optimal...HKP-21825$124.95 -
HK91, G3, MP7, G36 Side Rail - Short
B&T Brugger & Thomet
$42.00B&T HK G3/HK91, G36, MP7 Side Rail - Short Swiss made B&T short side rail for the B&T quad rail handguard. Compatible With B&T Handguards For: HK91/G3 G36 MP7HKP-21775$42.00 -
Out Of Stock
HK MP5K Receiver Flat - Smooth Top
HKP HK Parts
$129.95HKP HK MP5K Receiver Flat - Smooth Top The MP5K receiver flat has been meticulously crafted by the original German tool and die maker of the LSC receiver flat, utilizing factory original German prints and specifications. This receiver boasts a flat top,...HKP-21550$129.95 -
HK MP5 Parts Kit - Tactical Package
HKP HK Parts / Heckler & Koch
$2,199.95HKP MP5 Parts Kit Tactical package Vintage flavor with modern flare. Our team set out to strike a symbiotic balance of classic MP5 with modern accessories delivered at an affordable price. The result is a build kit comprised of vetted components...HKP-21495$2,199.95 -
On Sale
HK MP5, HK94, SP5 Binary Trigger Housing - Ambi - BFSIII - 9mm - INCOMPLETE - BLEMISHED
FA Franklin Armory
Now: $599.95Was: $849.95HK MP5, HK94, SP5 Binary Trigger Housing - Ambi - BFSIII - 9mm - INCOMPLETE - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED INCOMPLETE - MISSING GRIP COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN...HKP-20642-BNow: $599.95Was: $849.95 -
HK UMP Extended Top Rail - Red
HKP HK Parts
$59.95HKP HK UMP Extended Top Rail - Red Nearly an 1" longer than the standard length top rail. This picatinny top rail allows the user to add an eotech, aimpoint, acog, etc. Made in the USA from aluminum material and hard coat anodize in a beutiful Red...HKP-21049$59.95