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
HK417, MR762 Bolt Head - Complete - E1
H&K Heckler & Koch
Now: $536.36Was: $595.95Heckler and Koch 417 E1 Bolt Head - Complete Rare factory bolt head for the HK417. Compatible With: HK MR762 HK417Now: $536.36Was: $595.95 -
Out Of StockOn Sale
HK416 Convex Buttstock w/Wrench
H&K Heckler & Koch
Now: $88.16Was: $97.95H&K HK416 Convex Buttstock w/Wrench Factory-original H&K buttstock with convex buttpad and included tool. Compatible with HK416 rifles using MIL-SPEC buffer tubes (not included). Features: Ergonomic cheek weld Twist-off rubber buttpad with two...Now: $88.16Was: $97.95 -
On Sale
HK MR762 A4 Gas Vent Screw - 2.4mm
H&K Heckler & Koch
Now: $26.95Was: $29.95H&K MR762 A4 2.4mm Gas Vent Screw German 2.4mm gas vent screw for MR762 A4. Provides more venting than the factory-installed 1.3mm screw. Compatible With: MR762 A4Now: $26.95Was: $29.95 -
On Sale
HK MR762 A4 Gas Vent Screw - 2.1mm
H&K Heckler & Koch
Now: $26.95Was: $29.95H&K MR762 A4 2.1mm Gas Vent Screw German 2.1mm gas vent screw for MR762 A4. Provides more venting than the factory-installed 1.3mm screw. Compatible With: MR762 A4Now: $26.95Was: $29.95 -
On Sale
HK MR762 A4 Gas Vent Screw - 2.0mm
H&K Heckler & Koch
Now: $26.95Was: $29.95H&K MR762 A4 2.0mm Gas Vent Screw German 2.0mm gas vent screw for MR762 A4. Provides more venting than the factory-installed 1.3mm screw. Compatible With: MR762 A4Now: $26.95Was: $29.95 -
On Sale
HK MR762 A4 Gas Vent Screw - 1.8mm
H&K Heckler & Koch
Now: $26.95Was: $29.95H&K MR762 A4 1.8mm Gas Vent Screw German 1.8mm gas vent screw for MR762 A4. Provides more venting than the factory-installed 1.3mm screw. Compatible With: HK MR762 A4Now: $26.95Was: $29.95 -
On Sale
HK MR762 A4 Gas Vent Screw - 1.4mm
H&K Heckler & Koch
Now: $26.95Was: $29.95H&K MR762 A4 1.4mm Gas Vent Screw German 1.4mm gas vent screw for MR762 A4. Provides more venting than the factory-installed 1.3mm screw. COMPATABLE WITH: MR762 A4Now: $26.95Was: $29.95 -
On Sale
HK 21/21E/23/23E Double Frame Front Sight Base
H&K Heckler & Koch
Now: $60.26Was: $66.95H&K 21/21E/23/23E Double Frame Front Sight Base Original, unissued German double frame front sight bases. These have never been welded to a cocking tube and are perfect for completing or restoring your build with factory-spec parts. Compatible...Now: $60.26Was: $66.95 -
On Sale
HK End Cap - Dust Cap - Cocking Tube - BLEMISHED
H&K Heckler & Koch
Now: $9.95Was: $39.95H&K Cocking Tube End Cap/Dust Cap - BLEMISHED SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This part is Factory HK, painted black and not...Now: $9.95Was: $39.95 -
On Sale
HK MP5K 40/10 Stock or Brace Adapter
HKP HK Parts
Now: $91.16Was: $113.95HKP HK MP5K 40/10 Brace/Stock Adapter Easily attach your favorite A2 style stock to your MP5K 40/10 with this durable, precision-engineered adapter. Made in the US and available exclusively at HK Parts. Compatible with composite and wood A2 stocks...Now: $91.16Was: $113.95 -
On Sale
HK A3 Stock Release Lever Rebuild Kit
H&K Heckler & Koch
Now: $13.46Was: $14.95H&K A3 Stock Release Lever Rebuild Kit This A3 collapsible stock rebuild kit is designed for the release lever on MP5, SP5, 93/53/33, and G3/91 collapsible stocks. With A3 stocks becoming more expensive it's a great idea to keep this kit on...Now: $13.46Was: $14.95 -
On Sale
HK21E, HK23E Rear Sight Base
H&K Heckler & Koch
Now: $80.95Was: $89.95H&K HK21E/23E Rear Sight Base Factory German HK21E/23E rear sight base ready to weld on your build. The rear sight base serves as the mounting point for the rear sight, providing stability and proper alignment for accuracy on your HK21E or HK23E. As...Now: $80.95Was: $89.95