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
HK21E, HK23E, MSG90 Optic Mount - Picatinny Rail
Michaels Machines
$687.95HK21E/23E Or MSG90 Quick Release Full Picatinny Rail Scope Mount Rock-solid scope made in the USA to factory HK specs. Available exclusively at HK Parts. Please Note: These units are shipped in bulk and will have handling marks on the rails. Units are...HKP-01923$687.95 -
Out Of Stock
HK91, G3 Handguard - Slimline Style - Used Excellent Condition
H&K Heckler & Koch
$0.00Used Authentic German Military Surplus G3 Black Slim Line Forearm With Heat Shield Used in excellent shape. For the money, these are a nice addition to the collection. Each item will fit all full forearm length HK 91, G3, PTR style firearms. Used...HKP-18317$0.00 -
HK91, G3 Key Mod Handguard
HKP HK Parts
$149.95HK G3, HK91 & PTR Low Profile Key Mod Forearm The KeyMod tactical hand guard easily installs on your firearm with minimal effort and locks up solid. No fitting required. Designed from the ground up by roller lock & HK enthusiasts with your...HKP-17178$149.95 -
HK33, HK53, HK93 Trigger Group - 5 U.S. 922r Parts
PTR
$389.95HK 93,33,53 5.56/.223 Semi Auto Trigger Group Complete The components that count towards 5 of the 922r compliant parts include the lower housing, trigger pack box, trigger, hammer, and sear. Includes: US Made Sear US Made Hammer US Made Trigger US Made...HKP-16259$389.95 -
HK MP5 Trigger Group 3 Position Navy 0,1 Safe Semi Only - Clipped and Pinned - .40 S&W / 10mm
HKP HK Parts
$729.95HKP MP5 40/10 Trigger Group 3 Position Navy Housing (0,1) - Safe/Semi Only - Clipped & Pinned Finally a lower cost alternative to the spendy & hard to find all German HK FBI or 0,1 ambidextrous trigger group in a 4 position Navy factory...HKP-17247$729.95 -
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 Helmet Stock - Folding and Adjustable - 9mm
B&T Brugger & Thomet
$379.95B&T MP5 Folding Stock/Length Adjustable Helmet Stock Swiss made B&T folding and length adjustable helmet stock for the HK MP5 and compatible HK MP5 style firearms. This is a military grade stock as supplied by B&T to military and law...HKP-18244$379.95 -
Ergo M-LOK Harris Bipod Mount
Ergo
$33.95M-LOK Harris Style Bipod Mount Features: Contoured to fit Harris-style bipods Black anodized 6061-T6 alum.HKP-17851$33.95 -
HK MP5, HK94, HK34 Barrel - 9mm - 16.175" - Threaded 1/2x28
RCM
$249.95RCM MP5, HK34, HK94 Barrel - 9mm - 16.175"- Threaded 1/2x28 Each barrel is meticulously crafted from premium cold hammer forged (CHF) 41V45 steel, expertly profiled and chambered with a 16-flute chamber profile. Finished with a highly durable nitrided...HKP-17761$249.95 -
HK416, MR556, AR-15 Commercial Buffer Tube Kit
HKP HK Parts
$47.95AR-15 Commercial Buffer Tube Kit Compatible With: HK MR556 & 416 All AR-15 style platforms Includes: Made with T7 7075 aircraft-grade aluminum Made in the USA with a polished inside tube Mil-Spec triple hard coat Teflon anodized...HKP-02736$47.95 -
HK91, G3 Folding Stock - HDA3
Haga Defense
$349.95HDA3 Folding Stock for HK91, G3 The HDA3 is a modular, USA-made stock system developed by Haga Defense and A3 Industries. Built for strength, adaptability, and cross-platform compatibility, it delivers premium rigidity, smooth adjustability, and...HKP-22356-M$349.95 -
On Sale
AK Binary Trigger - Curved - BFSIII - BLEMISHED
FA Franklin Armory
Now: $385.99Was: $534.95Franklin Armory BFSIII AK-C1 Standard Caliber - 7.62x39 - BLEMISHED DAMAGED PACKAGING - PRODUCT UNAFFECTED 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-19833-BNow: $385.99Was: $534.95