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 MP5K, SP89 Handguard - Low-Profile
PTR
$62.95PTR HK MP5K, SP89 9mm Tactical Low-Profile Handguard The modular tactical forearm from PTR accommodates 2" rails on either site or bottom for mounting accessories. Made from aircraft-grade aluminum and steel components. The handguard also boasts...HKP-14539-M$62.95 -
Out Of Stock
Sidelok Optic Mount - 30mm - Modular
KDG Kinetic Development Group
$224.95Kinetic Development Group Sidelok Modular Optic Mount - 30mm The new KDG Modular Optic Mount is based off the proven Sidelok family of quick detach optic mounts and features the same user-friendly, tool-free design. KDG set out to design a Sidelok mount...HKP-19062$224.95 -
HK MP5, HK94 Recoil Guide Rod
H&K Heckler & Koch
$14.95New HK German MP5, 94 Recoil Guide Rod BarHKP-01054$14.95 -
HK MP5, MP5K Optic Mount, Trijicon 1X24 Reflex
B&T Brugger & Thomet
$127.95B&T MP5 & MP5K Mount for Trijicon 1X24 Reflex Low profile mount for HK MP5 with Trijicon RX01m 1x24 Specifications: Color: Black Width max: 42.5 mm Length max: 125.5 mm Height max: 25.8 mm Material: Aluminum & steel Treatment: Hartcoat...HKP-16863$127.95 -
HK MP5, HK33, HK53, HK93 Grip Housing - 4 Position Pictogram 0,1,3,F - Push Pin - 9mm, 5.56 / .223
H&K Heckler & Koch
$349.95H&K MP5 & 93/53/33 (9mm, 5.56/.223) 4 Position (0,1,3,F Pictogram) Grip Housing - Push Pin This HK German grip housing is designed for push pin type receivers. This housing is not clipped & pinned, coming exactly as it was manufactured by HK...HKP-02240$349.95 -
On Sale
HK MP5 Selector Lever Conversion Set - 4 Position Burst To 0,1
H&K Heckler & Koch
Now: $129.95Was: $179.95HK 4 Position Burst To Semi ONLY Conversion Selector Lever Set - German HK The German HK selector lever set will allow the use to convert the following: 0,1,3,F Trigger packs 0,1,2,F Trigger packs To safe, semi only as far as the way the selector...HKP-17996Now: $129.95Was: $179.95 -
On Sale
AR-15 Commercial Buffer Tube Kit
HKP HK Parts
Now: $27.95Was: $47.95AR-15 Commercial Buffer Tube Kit Compatible With: All AR-15 style platforms Not correct length for HK rifles Includes: Made with T7 7075 aircraft-grade aluminum Made in the USA with a polished inside tube Mil-Spec triple hard coat...HKP-02736Now: $27.95Was: $47.95 -
HK MP5, MP5K Folding Stock or Brace - HDA3
Haga Defense
$349.95HDA3 Stock and Brace for MP5K, SP5K The HDA3 is a modular, USA-made stock and brace system developed by Haga Defense and A3 Industries. Built for strength, adaptability, and cross-platform compatibility, it delivers premium rigidity, smooth...HKP-22355-M$349.95 -
HK MP5 Folding Stock or Brace - HDA3
Haga Defense
$349.95HDA3 Stock and Brace System for HK MP5, SP5 The HDA3 is a modular, USA-made stock and brace system developed by Haga Defense and A3 Industries. Built for strength, adaptability, and cross-platform compatibility, it delivers premium rigidity, smooth...HKP-22354-M$349.95 -
Out Of Stock
HK416 A5, MR556 A4 Barrel - 5.56 / .223 - 16.5"
H&K Heckler & Koch
$389.95H&K HK MR556 A4/A5 16.5" Barrel This 16.5" factory H&K MR556 A4 barrel is cold hammer-forged from high-quality steel for exceptional durability, accuracy, and longevity. Manufactured to Heckler & Koch’s exacting standards, it features a...HKP-21931$389.95 -
On Sale
HK MP5 Trunnion - Gunsmith Special
USA
Now: $24.95Was: $54.95HK MP5 Trunnion - Gunsmith Special US made HK MP5 trunnions sold as-is. Will require work before being functional. We recommend the work be performed by a professional gunsmith. The condition will vary from part-to-part vs. the pictured unit. Compatible...HKP-99089Now: $24.95Was: $54.95 -
On Sale
HK416, MR556 Extractor - BLEMISHED
HKP HK Parts
Now: $24.95Was: $39.95HKP HK MR556/416 Extractor - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The HKP HK MR556/416 extractor is a precision-engineered component designed...HKP-21826-BNow: $24.95Was: $39.95