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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Out Of Stock
HK G36C Barrel Conversion and Front End Kit - 5.56 / .223 - 8.9" - Threaded 15x1
HKP HK Parts
$889.95G36C Barrel Front End Barrel Kit - 223/556 New production HK G36C style barrel conversion kit and front end kit. Each kit will include the necessary parts to build a G38/SL8 variant into the G36KC barrel length variant as pictured. All you need is this...HKP-18228$889.95 -
HK UMP, USC Sling Pin, Stock Block B - QD
HKP HK Parts
$74.95Quick Detach Sling Pin for Stock Block B - USC, UMP This Ambidextrous QD Sling Pin allows you to replace your Push Pin Style or Eyelet Sling Loop - Style Pin in your Stock Block B for use of a QD Sling.HKP-18776$74.95 -
HK UMP Mag Release - Enhanced - Billeted - 9mm / .40 S&W / .45 ACP
HKP HK Parts
$34.95HK UMP Paddle Magazine Release - Enhanced This is a very common replacement part as they are fairly easy to break on the UMP lower. With this new mag release, you'll get a wider release as well as a much more durable part. Simple & easy to install no...HKP-18758$34.95 -
HK91, G3 Complete Fixed Stock with Enhanced Heavy Buffer- Black - Surplus
H&K Heckler & Koch
$269.95German G3, 91, PTR Stock complete - Surplus Used black German surplus stock complete. Ready to install on your HK or clone rifle. Used in perfect working condition and each stock includes all parts to be a complete stock ready to use on your HK G3, 91,...HKP-16269$269.95 -
Out Of Stock
HK53, HK51 Vented Handguard - Vertical
H&K Heckler & Koch
$149.95HK German HK53, HK51 Vented Hand Guard - Vertical Style This HK German part is the proper length for use on the HK 53 or HK51 length receivers. The handguard is vented on all 3 sides to promote barrel cooling and provide additional grip. Compatible...HKP-00469$149.95 -
HK33, HK53, HK93 Stock - Club Foot
Michaels Machines
$315.95MM HK93/33/53 Club Foot Stock This clubfoot ships assembled with a mix of German and US-made parts. Compatible With: HK 93 HK 53 HK 33 Includes: MM 21E Clubfoot Central Stock Section - US Made US Heavy Rubber Buttpad - US Made HK G3 to HK93 /33 Back...HKP-01455$315.95 -
HK33, HK53, HK93 Cleaning Kit - 5.56 / .223
HKP HK Parts / Heckler & Koch
$89.95H&K HK 93/53/33 (5.56/.223) Cleaning Kit New Factory HK German 93, 33, 53, or other HK .223/5.56's cleaning kit for all HK's or clones. This is the factory HK cleaning kit issued by HK as an OEM product. Includes: Cleaning rod for short and long...HKP-01550$89.95 -
HK MP5 Flash Hider - 3 Lug - .40 S&W / 10mm
H&K Heckler & Koch
$199.99HK Heckler and Koch's Flash Hider with 3-Lug Connection Fits all factory in-spec 3 Lug MP5 40/10 Barrels. Specifications: Made In Germany 3-Lug Compatible With: HK MP5HKP-00442$199.99 -
HK A3 Buttstock Clamping Lever Spring - Retractable
H&K Heckler & Koch
$19.95HK German Retractable Stock Clamping Lever Spring For A3 Retractable Stocks This spring is the most common breakage/wear item in the internal workings of the A3 retractable stock.HKP-01089$19.95 -
On Sale
HK MP5 SP5K, SP89, G3, HK91, HK33, HK53, HK93 Rail Riser - Picatinny
MFI
Now: $29.95Was: $44.95MFI Picatinny Rail Riser For Scope MFI Picatinny rail riser to elevate your optic by 18.8mm (.740"). This see-through riser allows a full view through the factory iron sights. This unit is similar to the A.R.M.S. #5 base scope mount and STANAG to...HKP-00899Now: $29.95Was: $44.95 -
HK MP5 Cocking Tube - 9mm
H&K Heckler & Koch
$109.95H&K MP5 9mm Cocking Tube New factory German HK uninstalled part directly from HK Germany. Rare and hard to find. Compatible With: MP5, 94, SP5 MP5 clones or other custom buildsHKP-00093$109.95 -
Out Of Stock
HK MP5, MP5K Case Deflector
H&K Heckler & Koch
$0.00HK German case deflector for receiver flat or receiver for all MP5, HK94, MP5K & SP89 builds. The case deflector is riveted or welded in place on the ejection port of the 9mm receiver/flat to aid in the extraction of the 9mm round. HK MP5, 94 HK...HKP-00871$0.00