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
HK416, MR556 ARC-Fire with Geissele Trigger - 3-Position - Ambi Controls
AS Designs
$689.95HK416, MR556 A4 3-Position ARC-Fire with Geissele*** Trigger and Ambidextrous Controls AS Designs' ARC-Fire (Active Reset Clutch) trigger is an innovative take on forced reset triggers. The trigger is reset immediately after each shot, resulting in...HKP-22435$689.95 -
Out Of Stock
HK MP5, SP5 Super Safety Lower
AS Designs
$649.95AS Designs Super Safety Lower for the HK MP5 & SP5 Platform The ASD Super Safety Lower allows for faster follow-up shots by resetting after each shot. This is a true drop-in trigger and housing assembly featuring SEMI, SUPER, and SAFE...HKP-22385-M$649.95 -
HK MP5, AP5 Firing Pin
MKE
$14.95MKE HK MP5/AP5 Firing Pin - 9mm MKE firing pin for HK MP5 platforms. Compatible With: HK MP5/SP5 Century Arms AP5/AP5P Zenith ZF-5/ZF-5K PTR 9CT/9KTHKP-22243$14.95 -
On Sale
HK91, G3, PTR Magazine - 10 Round - Steel - BLEMISHED
H&K Heckler & Koch
Now: $56.95Was: $89.95H&K 91/G3/MSG90 (7.62x51/.308) 10 Round Magazine - Steel - BLEMISHED MAGAZINE BODY HAS PITTING - CONDITION AND COLOR MAY VARY (see pictures) - Price is per unit. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT...HKP-01607-BNow: $56.95Was: $89.95 -
HK416, MR556 Takedown Pin - Front - A4 Style
H&K Heckler & Koch
$26.95H&K HK416, MR556 A4 Front Takedown Pin The HK416 front takedown pin is a German-made component designed to securely fasten the upper and lower receivers. Precision-machined for a proper fit, it ensures reliable function and serves as an ideal...HKP-21862$26.95 -
HK Hammer and Pressure Shank Pin - 90 Series
H&K Heckler & Koch
$3.95H&K Hammer and Pressure Shank Pin - 90 Series For pinned-style hammer and shanks, this pin securely holds the two components together. This original H&K production part has never been installed. Made from correct German-spec steel to meet exact...HKP-21854$3.95 -
Out Of Stock
HK91, G3 Barrel - 7.62x51 - 17.7" - Threaded 5/8x24
RCM
$264.99RCM HK G3/91 Threaded Barrel - 5/8x24-CHE Machined by RCM from a Mil-Spec 41V50 Hammer Forged Blank. These blanks are considered to be one of the finest made. 1:10 twist, Nitride finish. Perfect for that HK build or to replace that shot out barrel. Each...HKP-21838$264.99 -
HK G36 Picatinny Adapter
HKP HK Parts
$129.95HKP HK G36 Picatinny Adapter Transform your G36 with our unbeatable rail stock adapter, engineered to seamlessly attach any 1913 Style Stock or brace. Our innovative design ensures the 1913 stocks & braces lock in securely, offering superior cheek...HKP-21665$129.95 -
B&T TP9, MP9, APC Magazine - 9mm - 15 Round - Translucent
B&T Brugger & Thomet
$50.00B&T 15 Round TP9/MP9/APC 9mm Magazine - Translucent Swiss B&T manufactured 15 round magazine for the 9mm TP9, MP9 & APC. Specifications: 15-round capacity 9mm Made of high strength polymer Compatible With: B&T MP9/TP9 B&T...HKP-17437$50.00 -
HK SP5 Spec Only Navy Style SEF Clipped and Pinned Housing - Like New
H&K Heckler & Koch
$149.95HK German SP5 Spec Navy Style SEF Clipped & Pinned Housing - Excellent / Like New In outstanding, like-new condition—most items have never been installed on a firearm. Designed specifically for all HK SP5 models, these components are perfect...HKP-20074$149.95 -
HK91 SBA4 Pistol Stabilizing Brace and Adapter
SB Tactical
$319.95SB Tactical HK91 SBA4 Pistol Stabilizing Brace & Adapter Includes: G3, HK91 backplate & recoil assembly AR, M4 stock adapter Complete buffer assembly Castle nut SB Tactical Brace Features: Made in the USA Designed after the SBM4 5-position...HKP-19931$319.95 -
HK MP5 Bolt Group, Complete - .40 S&W, 10mm
HKP HK Parts
$414.95RCM- MP5 40 & MP5 10mm - Bolt Group Complete Ideal to replace out of spec, worn, or broken bolt groups or for that custom build. Includes: RCM bolt head complete RCM locking piece RCM firing pin RCM firing pin spring RCM full auto bolt carrier...HKP-19723$414.95