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 UMP 3 Position Lower Grip Frame - Black - RARE - USED
HKP HK Parts
Now: $449.95Was: $699.95HK UMP 3 Position Lower Grip Frame - Black - RARE - USED ONLY 1 UNIT AVAILABLE - AS PICTURED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Used UMP Lower...HKP-99274Now: $449.95Was: $699.95 -
Century Arms AP51 Fixed Stock Backplate
HKP HK Parts / Heckler & Koch
$89.95H&K/HKP Century Arms AP51 Fixed Stock Backplate HKP's drop-in replacement backplate and recoil rod is expertly modified to fit the Century Arms AP51. Crafted to the precise length for optimal function and dependable performance, this backplate allows...HKP-22188$89.95 -
On Sale
HK MP5, HK33, HK53, HK93 Grip Housing - Push Pin Style - 4 Position - USED
H&K Heckler & Koch
Now: $129.95Was: $229.95HK MP5, HK33, HK53, HK93 Grip Housing - Push Pin Style - 4 Position - USED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE...HKP-02240-USEDNow: $129.95Was: $229.95 -
On Sale
HK MP5 Locking Piece - 100 Degree - Standard Oversized - BLEMISHED - Gunsmith Special
USA
Now: $9.95Was: $33.95HK MP5 Oversized 100 Degree Standard Locking Piece - BLEMISHED - Gunsmith Special This US-made MP5 100 degree locking piece is the correct locking piece for all HK MP5-style forearms. This locking piece has also now become the factory correct locking...HKP-99116Now: $9.95Was: $33.95 -
On Sale
HK MP5K Carrier Weldment Tube
USA
Now: $19.95Was: $44.95HK MP5K Carrier Weldment Tube The MP5K carrier weldment tube houses and supports the carrier assembly in the HK MP5K firearm. Each tube ships raw/unfinished and is ready to weld into your build. Compatible With: HK MP5K THIS CLOSEOUT PART IS NOT...HKP-99062Now: $19.95Was: $44.95 -
HK MP5K Stock with Direct Fit Adapter - .40 S&W, 10mm
HKP HK Parts
$289.95HKP Stock with a Direct Fit Adapter HK MP5K .40 and 10mm Designed to adapt UMP style and B&T folding stocks directly to the .40, 10mm K platform. Made in the USA and available exclusively at HK Parts Compatible With: HK MP5K .40, 10mmHKP-21834$289.95 -
On Sale
HK MP5 A17 Light Adapter - 628 - Yellow Light - USED
Surefire
Now: $489.95Was: $749.95SureFire 628 HK MP5 A17 Light Adapter - Yellow Light - USED The SureFire A17 MP5 light adapter offsets your weapon light to allow for suppressor use and mounts to the Surefire 628. The adjustment feature offers versatility in light positioning, and once...HKP-99029Now: $489.95Was: $749.95 -
HK G36, SL8 Handguard Eye Bolt - Slings, Bipods
H&K Heckler & Koch
$79.95H&K HK G36/SL8 Sling/Bipod Eye Bolt Factory HK sling and bipod eye bolt for H&K G36 and SL8 rifle models. Steel construction with a durable black finish. Installs easily into the forward portion of the handguard to provide a secure...HKP-21654$79.95 -
HK UMP 4 Prong Ported Flash Hider
HKP HK Parts
$49.95HKP HK UMP 4 Prong Ported Flash Hider 4-prong UMP ported flash hider designed for our new UMP 45 parts kit. Not only does it protect exposed threads, it also enhances the appearance of your firearm while delivering flash suppression. Compatible...HKP-21578$49.95 -
FMP HK G3 Manual
$149.95FMP HK G3 Manual English-translated manuals for the Factory FMP G3 are available now. This is a rare collector's piece and the perfect item for those aiming to assemble a complete FMP G3 parts kit with an authentic factory manual. The cover is inscribed...HKP-21542$149.95 -
HK G36 Flash Hider for M.A.R.S QD Suppressor
B&T Brugger & Thomet
$144.99B&T G36 (5.56/.223) Flash Hider for M.A.R.S QD Suppressor Specifications: Made in Switzerland Threaded 15x1 RH Does not include face shims Compatible With: HK G36 5.56/.223 firearms threaded 15X1 RH Compatible with the Following Suppressors: M.A...HKP-21522$144.99 -
HK MP5 Trigger Pack - Single Stage Semi Auto - Ambi
HKP HK Parts
$459.95HKP/H&K MP5 9mm Single Stage Semi-Auto Ambidextrous Trigger Pack This trigger pack starts as a factory F/A trigger pack before being converted into a semi-auto trigger pack and receiving single-stage trigger work. This is the best option for...HKP-21483$459.95