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
HK416, MR556 Handguard - A4 Style - 10" - USED
H&K Heckler & Koch
Now: $379.95Was: $479.95H&K HK416, MR556 A4 10" Quick Disconnect Handguard Factory HK A4 handguard featuring HK's A4 quick disconnect latch. Compatible with A1 and A4 rifles. THESE HANDGUARDS ARE SLIGHTLY USED AND WILL HAVE COSMETIC BLEMISHES. PLEASE REFER TO...HKP-22426-USEDNow: $379.95Was: $479.95 -
On Sale
HK MP5, HK91, G3, PTR Magazine - 5 Round - Black - BLEMISHED
HKP HK Parts
Now: $44.97Was: $79.95HK91, G3, MSG90 Magazine - 5 Round - Black - BLEMISHED PITTING COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. 5 Round German Steel 308 Magazine With US Made...HKP-16250-BL-BNow: $44.97Was: $79.95 -
HK MP5, MP5K Raised Optic Mount with Burris FastFire - 3.5 MOA
HKP HK Parts / Aimpoint
$509.95HK MP5 Burris FastFire 3.5 MOA Red Dot with Raised Optic Mount The HKP Raised optic mount was designed to elevate the sight to a height that is both comfortable and easy to view, while retaining an unobstructed view of the factory sights. Get the best of...HKP-22398-M$509.95 -
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 -
HK MP5K, SP5K ACR Folding Stock with Stock or Brace Adapter - Picatinny
F5 MFG
$324.95HK MP5K, SP5K ACR Folding Stock w/Adapter - Picatinny The HKP picatinny end cap with the F5 ACR stock allows users to easily swap this, and other stocks, between their K and other platforms. This drop-in ready assembly attaches with the K's two...HKP-22351-M$324.95 -
HK MP5 Metal Trigger Housing Conversion Kit - AC Unity Grip
HKP HK Parts
$189.95HK MP5 Metal Trigger Housing Conversion Kit - AC Unity Grip This kit includes everything you need to convert a polymer MP5 trigger group a robust metal housing. Simply use your existing semi-auto SEF trigger pack to complete the conversion. This...HKP-22321$189.95 -
HK MP5 Optic Mount - .22LR - Raised - Aimpoint ACRO
HKP HK Parts
$119.95HKP HK MP5 .22LR Aimpoint ACRO Sight Mount - Raised Height MP5 .22LR raised height mount for the Aimpoint ACRO mounting interface. Our ACRO mounts provide an unobstructed view of the factory HK sights through the mount giving the shooter the best of both...HKP-22248-M$119.95 -
HK90 Series Trigger Box - Full Auto SEF- USED
H&K Heckler & Koch
$89.95H&K 90 Series F/A Trigger Box - SEF- USED UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE Used genuine H&K full-auto trigger box for 90 series firearms. Controls fire selector function and houses fire control component. Fits all...HKP-22156$89.95 -
HK91, G3 A3 Retractable Buttstock - New Old Stock
H&K Heckler & Koch
$1,345.95Heckler and Koch HK91, G3 A3 Retractable Stock - New Old Stock Genuine HK A3 retractable stock the HK91 or G3. These are original HK production units that have been out of manufacture for years, making remaining NOS increasingly rare. Compatible...HKP-22104$1,345.95 -
Out Of Stock
HK416, MR556 Charging Handle - E2
H&K Heckler & Koch
$139.95Heckler and Koch E2 Charging Handle for HK416, MR556 Factory HK charging handles for the MR556, HK416 platform. The standard MR556 charging handle allows the release latch to be configured on either the right or left side for user preference. The HK E2...HKP-22021$139.95 -
On Sale
HK MP5 Length Project SF Trigger Housing - USED SURPLUS - Gunsmith Special
USA
Now: $19.95Was: $59.95HK MP5 Length Project SF Trigger Housing - USED SURPLUS - Gunsmith Special MP5 length trigger housing perfect for projects or custom builds, each marked with the SE pictogram. The condition will vary from part-to-part vs. the pictured unit. Please Note:...HKP-99103Now: $19.95Was: $59.95 -
On Sale
HK MP5SD Cocking Tube - Gunsmith Special
USA
Now: $29.95Was: $74.95HK MP5SD Cocking Tube - Gunsmith Special The MP5SD cocking tube is a crucial part of the firearm's operating system, designed to house the cocking handle assembly. This unit has been de-milled to allow clearance for the integrated suppressor...HKP-99059Now: $29.95Was: $74.95