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 Parts MP5/K SP5/K Folding Stock Buffer
HKP HK Parts
Now: $7.96Was: $9.95HK Parts MP5/SP5/MP5K/SP5K Folding Stock Buffer This item used to replace the factory HK buffer on MP5K folding stocks and end cap. This is only usable on the factory OEM stock and end cap. This buffer can also be used as a replacement buffer for all of...Now: $7.96Was: $9.95 -
On Sale
HK33, HK93, HK91, G3 Clubfoot With Heavy Rubber Buttpad
Michaels Machines
Now: $206.95Was: $229.95US-Made Clubfoot (21E/23E Style) Central Buttstock Section With US Heavy Rubber Buttpad Fits all HK 91/G3/21/23 and HK93/33/53 backplates and buffers. Just add your buffer and backplate and you are good to go. Great replacement or upgrade for your HK...Now: $206.95Was: $229.95 -
On Sale
HK MP5 Receiver Flat with Weldment Set
PTR
Now: $265.45Was: $294.95MP5 9mm Receiver Flat With Complete Weldment & Rivet Set - PTR/LSC Several years ago PTR bought out LSC and now owns the tooling and dyes for the LSC 9mm flats. These elusive flats have been hard to find and are now available for the first time here...Now: $265.45Was: $294.95 -
Out Of StockOn Sale
HK90, MP5K Sear Catch - Steel - US
HKP HK Parts
Now: $38.36Was: $47.95HKP HK Parts HK90, HK MP5K Sear Catch - Steel - USA Made - Billeted Machined - Steel Hard to find and important for keeping your HK build 922r compliant. This US-made sear counts as one US-compliant part for your rifle or build. Machined from a bar of...Now: $38.36Was: $47.95 -
On Sale
HK MP5, SP5K Optic Mount - Trijicon RMR - 3.25 MOA
Trijicon
Now: $562.46Was: $624.95RMR Optic Mount - Bundle - HK MP5 Includes: (1) Trijicon RMR Type 2 Red Dot Sight - 3.25 MOA Red Dot, LED Illuminated (1) MP5 RMR Optic Mount The finest mounting solution to properly mount your RDS on your MP5 or any other receiver that utilizes...Now: $562.46Was: $624.95 -
HK51, PTR PDW Retractable Stock - A3
MKE
$459.95MKE HK51, PTR PDW Retractable Stock A3 Factory new MKE stock professionally converted to fit HK51 and PTR PDW rifles and pistols. This stock was modified with a heavy profile collapsing rod insert heat treated for longevity. The correct collapsing length...$459.95 -
On Sale
HK MP5K/SP89/SP5K Recoil Rod Assembly - USA
DTAC Dakota Tactical
Now: $31.46Was: $34.95HKP MP5K, SP89, & SP5K Recoil Rod Assembly - USA The new US-made Dakota Tactical recoil rod assembly is completely micro-polished and built of the finest materials. This is a great item to have on hand as a spare part as this is a wear and...Now: $31.46Was: $34.95 -
On Sale
Pistol Stabilizing Brace - SBA4
SB Tactical
Now: $112.49Was: $124.99SB Tactical SBA4 Pistol Stabilizing Brace Designed for all platforms capable of accepting a mil-spec carbine receiver extension. The SBA4 is 5-position adjustable and features an integral, ambidextrous QD sling socket. Compatible With: HK MR556...Now: $112.49Was: $124.99 -
On Sale
HK91, G3 Mag Release Set
H&K Heckler & Koch
Now: $31.46Was: $34.95HK .308 Magazine Release Set (Left to Right) This magazine catch set consists of 4 pieces and is HK-manufactured. Compatible With: HK .308 rifles HK G3 HK 91 PTR-91 HK 91 Clones or Variants Includes: Magazine Catch Magazine Catch Spring Push...Now: $31.46Was: $34.95 -
On Sale
HK416, MR556 Sling Loop Backplate - Ambidextrous
H&K Heckler & Koch
Now: $26.95Was: $29.95H&K HK MR556/416 Sling Loop Backplate - Ambidextrous Genuine HK German manufactured 416, MR556 new style backplate with sling loop. Compatible With: HK MR556, HK 416 buffer tubes All Standard AR-15, M4 & M16 buffer tubesNow: $26.95Was: $29.95 -
On Sale
HK Universal Gun Cleaning Wick Set - 8 Piece Set
H&K Heckler & Koch
Now: $1.75Was: $1.95Original German Army Issue HK91/G3/PTR Cleaning Kit Wick - Set of 8 Originally issued for the G3,91 & MG3 firearms but will work on pretty much any and all rifles & pistols. Each set comes with 8 BRAND NEW German manufactured cleaning wicks. Each...Now: $1.75Was: $1.95 -
On Sale
HK MP5 Series Stock or Brace Adapter
HKP HK Parts
Now: $103.96Was: $129.95HKP HK MP5K to MP5 Brace/Stock Adapter Our new MP5K to MP5 stock adapter is the perfect addition for those looking for a stock that provides a better line of sight and a better cheek rest position like the MP5 A2 fixed stock does. This stock adapter will...Now: $103.96Was: $129.95