HK MR556/416 Series
Our extensive collection boasts a wide array of HK MR556 and HK 416 parts, including precision HK MR556 Barrels and durable HK 416 Stocks. Elevate your rifle's functionality with HK 416 Handguards and HK MR556 Triggers, designed for the discerning shooter seeking top-tier performance.
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H&K HK MR556/416 Bolt Catch
H&K Heckler & Koch
$59.95HK MR556 & 416 Bolt CatchNew HK German manufacture. Fits and works with factory HK MR556 & HK 416 models. HK 416 HK MR556HKP-02542$59.95 -
H&K HK MR556/416 Magazine Release Button
H&K Heckler & Koch
$16.95HK MR556 & HK 416 Magazine Release ButtonNew HK German Manufacture. Fits all: HK MR556 HK416 AR15, M4 & M16 firearmsHKP-02656$16.95 -
H&K Universal Cleaning Kit
H&K Heckler & Koch
$21.95New - Original HK German MSG90/HK91/G3 Cleaning Kit - Old StockEach cleaning kit kit comes complete with brass brush, oil brush, oil tube, hand cleaning brush, and pull chain. Originally built for the G3,91 & MG3 but will work on all .308 - .351 ...HKP-19031$21.95 -
HK 416 10.4" Upper Gas Block - German
$279.95HK German 10.4" Upper Gas Block Complete New HK German manufacture. This is the ONLY 10.4" gas block available from HK Germany. Compatible with: HK 10.4" uppers HK MR556 to 10.4" conversions Please note: This unit is NOT a vented gas block.HKP-01543$279.95 -
Strike Industries M-LOK Bikini Hand Stop
Strike Industries
$13.95Bikini Hand Stop (2-pack) Strike IndustriesThe Strike Industries Bikini Hand Stop (BHS) gives the shooter increased ergonomics and control of the weapon. The hand stop is made from durable and lightweight polymer compatible with M-LOK rails. The BHS is...HKP-20057$13.95 -
H&K HK 416/MR556 Mil-Spec Factory German E2 Rear Stock - Black
H&K Heckler & Koch
$139.95HK 416, MR556 Factory German E2 Rear Stock Latest HK German Stock For All HK 416, MR556 Rifles. The HKE2 Buttstock fits MILSPEC buffer tubes (receiver extensions) for M4/AR15 type weapons and has the concave style removable buttpad installed. HK E2...HKP-01913$139.95 -
H&K HK MR556/416 Handguard Rail System Screw
H&K Heckler & Koch
$29.95HK MR556 Factory Handguard Rail Screw Your For HKMR556 Or HK416 Forearm. This Can Also Be Used To Replace The Rail Screw On The HK MR556 As Well. This Is The Hex Head Version For Any Metric Allen Hex Head Can Be Utilized To Tighten And Release The Screw...HKP-02717$29.95 -
Out Of Stock
H&K HK MR556/HK416 FFRS Retaining Spring
H&K Heckler & Koch
$0.00The Retainer Spring Retains The Hanguard Locking Pin on the Free Floating Rail System (FFRS). These can easily become damaged with removal of the handguard screws. Once the spring is damaged they have to be replaced and cannot easily be made to work...HKP-02617$0.00 -
HK German Leather Sling
H&K Heckler & Koch
$99.95German HK Leather 2 point sling - New Comes with HK sling hook. Complete and new condition. Made with leather straps and steel hardware and HK sling hook. Can be used on many firearms: HK91, G3, PTR91 & CETMEHK93, 33, 53HK94, MP5HK clones or...HKP-20485$99.95 -
Geissele HK 416 Trigger
Geissele
$529.95HK 416 SSF Trigger- GeisseleThe HK 416 SSF trigger . It can be used in all HK 416 Select Fire Full Auto Firearms. This is the newer production Generation II trigger kit.Each Trigger comes with full installation instructionsPleaseNote: After installing...HKP-16477$529.95 -
H&K HK 416/MR556 Quad Rail
H&K Heckler & Koch
$419.95Quad Rail - HK 416, MR556 HK German 416, MR556 Quad Rail Without Mounting Screw.Charcol gray in color. Fits all: MR556 HK416 Length: 9 1/4"HKP-16858$419.95 -
H&K HK MR556/416 Slim Line Stock - RAL 8K
H&K Heckler & Koch
$249.95HK 416A5, HK416 & MR556 Slim Line Retractable Stock - Ral 8000 New From HK Germany the slim line retractable stock fits all commercial & milspec AR-15/M16 buffer tubes. Marked with the HK logo and issued on specialized HK 416, MR556 rifles. Fits...HKP-17602$249.95 -
H&K Hk MR556/416, HK MR762/417 Flip Up Rear Sight-2mm
H&K Heckler & Koch
$274.95HK 416, MR556 & MR762, 417 Flip Up Rear Sight (Diopter 2mm Sight). Attaches to any standard picatinny rail. No hardware needed as this is a self contained quick attach rear sight assembly. This unique HK designed sight features a quick & easy...HKP-08951$274.95 -
H&K HK416 Full Auto Ambi Selector Lever Kit - 3 Position Polymer Selectors
H&K Heckler & Koch
$159.95HK416 Full Auto Ambi Selectors Kit - German HK - 3 PositionEach set comes complete with everything you will need to upgrade your HK 416 to an ambi selector lever set up. The HK 416A5 polymer selector levers will be helpful for a quick visual indication...HKP-20398$159.95 -
HKP 2 Point Leather Sling - Brown
HKP HK Parts
$49.952 Point Leather Sling - Brown These new HK Parts 2-point slings are based off of the original German HK Design that are no longer offered. This is a 1st time offering, handcrafted by a German Artisan and made 100% in the USA. Made from quality USA...HKP-20162$49.95 -
Magpul PMAG 20 Round AR-15 5.56 / .223 Magazine
Magpul
$12.95Mapul PMAG 5.56/223- 20 Round - M3 This magazine is the latest and greatest M3 model NON-windowed 20 round PMAG (Polymer Magazine) is a lightweight 5.56 NATO, M-16 compatible magazine. It features a pop-off storage/dust cover that alleviates pressure...HKP-16475$12.95 -
Ergo Tactical Grip For MR556/MR762-Black
Ergo
$54.95Ergo Grip PSG1 Style Grip For MR556 & MR762 Just in and a great upgrade if you want the PSG1 style grip frame for your HK MR556, MR762 & HK416, HK417, G28 firearm.The ergonomically enhanced ERGO Tactical Deluxe Grips fits all AR15, M16 and MR...HKP-17131$54.95 -
H&K HK 416/MR556/AR15 Selector Detent Spring
H&K Heckler & Koch
$9.95HK MR556 & HK 416 Selector Detent SpringHK German manufacture. Fits all: HK MR556 HK416 AR15, M4 & M16HKP-02657$9.95 -
H&K HK MR556/416 Battle Grip Storage Cap Pin
H&K Heckler & Koch
$4.95HK German HK416, MR556 Battle Grip Storage Cap Roll Pin.HKP-16861$4.95 -
H&K HK MR556/416 Cam Pin
H&K Heckler & Koch
$31.95Bolt Head Cam Pin- MR556, HK 416New factory HK German manufactured cam pin for bolt group. A common wear and replacement item. A great idea to have a couple on hand.Fits all: HK 416 HK MR556 HK M27 HK 416 A5HKP-02539$31.95 -
HKP HK MR556/416, HK MR762/417 Flip Up Rear Sight-2mm
HKP HK Parts
$139.95HK 416, MR556 & MR762, 417 Flip Up Rear Sight Diopter 2mm Sight - US Attaches to any standard picatinny rail. No hardware needed as this is a self contained quick attach rear sight assembly. This unique sight features a quick & easy push button...HKP-17717$139.95 -
Magpul M-Lok 7 Slot Rail Section
Magpul
$21.95Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Aluminum Rail Sections allow the attachment of various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc. Machined from milspec-anodized aluminum,...HKP-19569$21.95 -
Magpul M-Lok QD Sling Mount
Magpul
$27.95The M-LOK Quick Detach Sling Mount provides a forward attachment point for the Magpul MS4 Sling and other push-button QD slings. Machined from Mil-Spec anodized aluminum, the low-profile M-LOK QD Sling Mount features beveled edges to reduce snagging and...HKP-17268$27.95 -
Out Of Stock
AIM M-LOK Quick Detach Sling Swivel Mount
AIM
$19.95M-LOK Quick Detach Sling Swivel MountThe Aim M-LOK® QD Sling Mount stud with QD swivel provides a front attachment point for your push button QD sling or sling with just strap.Features: Compatible with all M-LOK spec attachment points. High grade hard...HKP-18589$19.95 -
H&K HK MR556/416 Bolt Catch Pin
H&K Heckler & Koch
$4.95HK MR556 & HK 416 Bolt Catch PinThe factory roll pin to hold the bolt catch in place. Great to have on hand in the event this item becomes lost or damaged when doing maintenance.HKP-02677$4.95 -
Out Of Stock
H&K HK MR556/416 Fire Control Detent Stop Pin
H&K Heckler & Koch
$16.95HK German HK 416, MR556 Fire Control Detent Stop PinHKP-15272$16.95 -
Out Of Stock
H&K HK MR556/MR762/416/417 Magazine Catch Retainer Ring Pin
H&K Heckler & Koch
$0.00Magazine Catch Retainer Ring Pin.Compatible with: HK 416 MR556 HK 417 MR762HKP-16618$0.00 -
H&K HK MR762/MR556/HK416 Rail Cover Set - Black
H&K Heckler & Koch
$74.95HK MR762 Quad Rail Picatinny Rail Handguard Cover Set - 3 Rails Per SetEach rail measures:8 3/8" Long1 3/8" WideBrand new Heckler & Koch picatinny rail covers made of high impact HK polymer. Each rail is equipped with a quick release tab &...HKP-17704$74.95 -
HKP HK Parts 2 Point Operator Sling
HKP HK Parts
$19.952 point sling similar to the popular Magpul style sling. Made to last and a great sling for the money. Not set up for use on the HK style rifles unless you add AR15/M4 style attachment points for the 2 points of the sling.HKP-15375$19.95 -
Out Of Stock
Surefire HK MR556/416 Muzzle Brake/Suppressor Adapter
Surefire
$165.00SureFire SFMB-556-1/2-28 muzzle brake/Suppressor AdapterEach unit fits M4 / M16 & HK 416, MR556 weapons and variants with 1/2-28 muzzle threads, greatly reduces both recoil impulse and muzzle rise so that the weapon tracks straight back to keep you...HKP-17378$165.00 -
Gear Head Works Tailhook Mod 1 - FDE
Gear Head Works
$159.95We start with a solid piece of billet aluminum and meticulously machine every aspect for a part that is as nice to look at as it is to use. This version clamps to pistol buffer tubes or adapter spuds ranging from 1.17? to 1.2? in diameter. It features a...HKP-19541$159.95 -
H&K HK MR556/416 Vented Slimeline Gas Block
H&K Heckler & Koch
$135.00HK German MR556, 416 Gas Block Complete - Low Profile This is the factory slim-line, low-profile gas block for the MR556/HK416. No bayo lug or sling attachment points. This is the factory correct gas block found on the MR556 firearm. This is also the...HKP-02660$135.00 -
Harris Engineering Bipod 6-9" - Fully Adjustable With Swivel
Harris Engineering
$149.95Harris Engineering Bipod 6-9" - Fully Adjustable With Swivel This part is manufactured using high-quality parts to ensure excellent function and sustainable use. It attaches to a sling swivel stud. Carrying your rifle with a sling or shooting off-hand is...HKP-00983$149.95 -
HK G36/MR556/416 (5.56/.223) Chamber Cleaning Brush
HKP HK Parts
$24.95HK G36 & HK SL8 German Chamber Cleaning Brush (Cleans INSIDE Chamber) More details...HKP-00803$24.95 -
Maglula Gen 2 AR-15 5.56/.223 Mag Loader/Unloader
Maglula
$26.95Maglula ltd., Magazine Loader/Unloader, Generation 2, Lula, 223 Rem/556NATO, Fits AR-15, BlackCurrently in use with many military, federal, government agencies. This loader sets the standard for the best loader for you HK 416/MR556 or other Ar-15/M16...HKP-14545$26.95 -
Gear Head Works Tailhook Mod 1 - OD Green
Gear Head Works
$159.95We start with a solid piece of billet aluminum and meticulously machine every aspect for a part that is as nice to look at as it is to use. This version clamps to pistol buffer tubes or adapter spuds ranging from 1.17? to 1.2? in diameter. It features a...HKP-19542$159.95 -
German HK 416, MR556 - Barrel Nut
H&K Heckler & Koch
$45.00HK MR556, HK 416 Barrel Nut Or Socket For Barrel All steel barrel nut. This item is a must have repair and replacement part for removal or when you have any work done to your barrel as the barrel nut may become damaged in the removal & installation...HKP-02535$45.00 -
Out Of Stock
H&K 416A5 RAL8000 Stripped Upper Receiver
H&K Heckler & Koch
$0.00HK German Un-Assembled Stripped HK 416A5 Upper Receiver - Ral 8000 Brand new factory German RAL8000 416A5 upper receiver. Compatible With: HK MR556 HK MR223 HK 416 Looking for a matching lower for your build? STS416 A5 LOWER - Specialized...HKP-18787$0.00 -
H&K German Universal Multi Tool
H&K Heckler & Koch
$79.95H&K German Universal Multi Tool This is ideal for the USC or SL8 style of weapon systems. Great multi-tool for sights, handguards, or work on any other accessories.HKP-00374$79.95 -
H&K HK /MR556416 A5 Ambidextrous Complete Selector Lever Set - RAL 8K
H&K Heckler & Koch
$179.95HK 416A5 SEMI & MR556 Ambidextrous Selector Lever Set Complete - RAL 8000 New HK German manufacture. Complete kit to upgrade the selector lever set on the MR556 to the newer HK 416A5 semi style of levers. A drop in upgrade for the MR556 & CR556...HKP-17603$179.95