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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HKP 2 Point Leather Sling - OD Green
HKP HK Parts
$49.952 Point Leather Sling - OD Green 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...HKP-20164$49.95 -
H&K German Leather Sling - Used-Excellent
H&K Heckler & Koch
$79.95Original Surplus German HK Leather 2 point sling - Used Excellent Comes with HK sling hook. Pulled from German military G3 rifles. Complete and in excellent shape overall. Made with leather straps and steel hardware and HK sling hook...HKP-20347$79.95 -
H&K HK 416/MR556/MR762 Trigger Guard Pin
H&K Heckler & Koch
$3.95HK MR556, 416 Trigger Guard Retaining Pin HK 416 HK MR556HKP-02678$3.95 -
H&K HK MR556/416 Clamping Sleeve Safety Lever
H&K Heckler & Koch
$7.95HK German HK 416, MR556 Clamping Sleeve For Safety Levers. There are one of the same pin on both sides.HKP-15252$7.95 -
H&K HK MR556/416 Receiver End Plate
H&K Heckler & Koch
$14.95HK 416, MR556 End Plate For Receiver & Buffer TubeFits all HK MR556 & HK 416 upper receiever/buffer tubes. New HK German manufacture.HKP-16603$14.95 -
Out Of Stock
Geissele HK MR556/416 14.5" Super Modular Rail System - FDE
Geissele
$549.95Geissele HK416, MR556 14.5" Modular Rail - Desert Dirt Color (DDC)13.625" overall length Geissele HK 416, MR556 free float rail with HK 416 14.5" barrel and MR 556 16.5" barreled upper.This is a direct replacement item for your HK MR556 and 14.5"...HKP-16462$549.95 -
H&K HK MR556/416 Firing Pin
H&K Heckler & Koch
$54.95H&K HK MR556/416 Firing Pin New HK German manufactured. This is a great item to have on hand as the firing pin is one of the most abused components in the HK MR556 and HK 416 weapon systems. Compatible with: HK MR556 HK 416 HK CR556 HK...HKP-00045$54.95 -
H&K HK416 A5 Factory German Extended Castle Nut
H&K Heckler & Koch
$49.95Original HK Factory German steel 416 A5 Extended Castle Nut. Perfect for MR556, HK 416 A5 builds, or upgrades.HKP-19164$49.95 -
H&K 416 Ambi Sling Loop
H&K Heckler & Koch
$134.95HK 416 AMBI SLING LOOPAmbidextrous sling loop for a quick and easy carrying option. compatible with any sling that attaches via a sling hook. Intended for the HK 416 format but is compatible with any picatinny rail.PLEASE NOTE SLING IS NOT INCLUDEDÂHKP-20341$134.95 -
Out Of Stock
H&K HK 416/417/MR556/MR762 Takedown Pin Detent Spring
H&K Heckler & Koch
$6.95HK MR556, HK 416 & HK MR762 & HK417 Takedown Pin Detent SpringNew HK German manufacture. Detent spring for the rear takedown pin. HK 416 HK MR556 HK MR762 HK 417HKP-02541$6.95 -
H&K HK MR556/MR762/416/417 33mm Front Folding Sight
H&K Heckler & Koch
$199.9533mm Front Folding Sight Tower-MR416, MR762 & HK416/HK417 HK416 HK MR556 HK417 HK MR762HK 416 Or MR556 Front Folding Sight. This item attaches directly to the front gas block of the HK 416 & MR556 or MR762/HK417.Designed to be used in...HKP-02548$199.95 -
H&K HK MR556/416 Buffer Retainer Pin
H&K Heckler & Koch
$3.95Buffer Retainer Pin For The HK MR556 & HK 416.HKP-12704$3.95 -
H&K HK MR556/MR762/416/417 German E1 Convex Butt Pad
H&K Heckler & Koch
$64.95HK MR556, HK416 & MR762, HK417 German E1 Convex Butt PadThe HK Convex buttpad can be used to swap out on the factory E2 or concave style buttpads for those that desier this option. This way you can use either the concave or convex style buttpads for...HKP-01915$64.95 -
HK 416/417 Buffer Retainer Spring
USA
$2.95HK 416 / HK417 Buffer Retainer Spring. This item is the spring for the buffer retainer that is held in the rear of the lower receiver. HK 416 HK 417HKP-20036$2.95 -
HKP HK 416/MR556/MR762 Flip Up Rear Sight-3mm
HKP HK Parts
$139.95HK 416, MR556 & 417 Flip Up Rear Sight Diopter 3mm Sight - USAttaches 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-17715$139.95 -
HKP HK MR556/CR556/MR762 H-Key 5 Rail Segment
HKP HK Parts
$24.95HK MR556, CR556 & MR762 HKey Rail Segment - 5 Slot5 picatinney slot rail segment for the new "HKey" style forearm. Each rail section is designed to fit and attach to any of the new HKey style forearms now being shipped on the MR556, CR556, MR762 and...HKP-17842$24.95 -
H&K HK 416 Flash Hider - Black
H&K Heckler & Koch
$19.95H&K HK 416 Flash Hider - Black Threaded 1/2 X 28 for use on all HK 416, MR556, and other AR-style applications. Great flash hider to use to upgrade the MR 556 flash hider.HKP-01404$19.95 -
Out Of Stock
H&K HK 416 Commercial Factory E1 Rear Stock - Blackl
H&K Heckler & Koch
$0.00HK 416 Factory German E1 Rear Stock Latest HK German Stock For All HK 416/MR556 Rifles. This HK 416 HKE1 Buttstock fits Commercial buffer tubes (receiver extensions) for M4/AR15 type weapons. NO LONGER OFFERED OR AVAILABLE! Features...HKP-15426$0.00 -
H&K Single Point Sling - Quick Detach - Tan
H&K Heckler & Koch
$29.95HK Single Point Sling in Tan - Quick DetachSpecifications: Composition: Thick, all black, heavy-duty Cordura nylon Style: Bungee-type design for positive retention and control Connection: HK sling hook attachment point with elastic cover Heavy duty 1.5?...HKP-19766$29.95 -
Troy Industries HK 416/HK MR556/HK MR762/HK 417 Low Profile Micro Sights
Troy Industries
$199.95Troy Industries Low Profile Micro Sights For those that need a lower profile sight for enhanced cheek weld position and eye relief, this is the sight set up for you. Each rear sight includes two different sight apertures, making the sight system modular...HKP-01243$199.95 -
Out Of Stock
H&K HK MR556/416 Mil-Spec Enhanced Buffer Tube
H&K Heckler & Koch
$0.00HK 416, MR556 OTB (over the beach) Buffer Tube, Receiver ExtensionGenuine HK German manufactured 416, MR556 new style latest generation marine environment "over the beach" buffer tube. Each mil-spec buffer tube has built in drainage holes in the rear of...HKP-02716$0.00 -
HKP HK MR556/416 Barrel Nut Installation/Removal Tool
HKP HK Parts
$59.95HK 416, MR556 Barrel Nut Installation & Removal Tool New US manufactured barrel nut removal and installation tool. Each tool has the provision installed to allow the use of an off the shelf 1/2" torque wrench to be used while removing and installing...HKP-17327$59.95 -
H&K HK MR556/416 Slim Line Stock - Black
H&K Heckler & Koch
$309.95HK 416A5, HK 416, MR556 Slim Line Retractable StockNew 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 all...HKP-16244$309.95 -
Out Of Stock
HK MR556, 416 & AR15, M4 Stock - PDWC - Extended Buttpad
HKP HK Parts
$349.95HK 416C Style With Extended Buttpad - PDW Stock For AR15, MR556, HK416 & M4 Models The first PDW style stock that does NOT require a proprietary bolt carrier or special components. A true drop-in PDW stock solution for your HK 416C or AR/M4 PDW...HKP-17800$349.95 -
HKP HK MR556/416 Buffer Tube Wrench
HKP HK Parts
$29.95HK MR556 & HK416 Buffer Tube WrenchThe perfect metric wrench to remove and install the MR556 & HK 416 castle nuts on the buffer tube. A perfect addition to have on hand for OTB or other HK buffer tube upgrades, etc. Made from all steel, heat...HKP-17124$29.95 -
Surefire HK MR556/416 3-Prong Flash Hider - Black
Surefire
$174.95SureFire SF3P-556-1/2 X 28 Three-Prong Flash Hider- MR556 & HK 416The advanced SureFire SF3P-556-1/2-28 three-prong flash hider, which fits M4/M16 weapons and variants with 1/2x28 muzzle threads, features a patent-pending design that greatly reduces...HKP-17261$174.95 -
H&K HK MR556/416 Buffer Retaining Pin
H&K Heckler & Koch
$15.95HK 416, MR556 Buffer Retaining PinNew HK German proprietary HK designed buffer pin unique to the HK 416, MR 556 series. The finest buffer spring retainer available ever made. HK MR556 HK 416 HK M27HKP-02544$15.95 -
H&K 30 Round HK MR556/K416 Magazine Spring
H&K Heckler & Koch
$12.95HK German HK MR556, HK 416 Magazine Spring. Fits all HK German 416, MR556 30 round steel magazines. Great spare for wear and replacement.HKP-13483$12.95 -
HKP HK 416/MR556 A5 Style Castle Nut-Extended
HKP HK Parts
$39.95HK 416, MR556 A5 Style Extended Length Castle Nut Our HK A5 extended buffer tube castle nut will fit both mil-spec & commercial buffer tubes. Unlike the factory German A5 castle nut that only is compatible with a mil-spec buffer our castle nut...HKP-18058$39.95 -
H&K HK 416 Enhanced Firing Pin/Retaining Pin
H&K Heckler & Koch
$19.95HK 416, Firing Pin Retaining Pin- New StyleThis pin is a common wear and replacement item on any AR-15 or M16 system as well as the HK416. Not needed on the MR556 models. This is the newer style pin that is goldish in color, super hardened and much less...HKP-02658$19.95 -
H&K HK 416 Full Auto Ambidextrous 3-Position Selector Lever Kit
H&K Heckler & Koch
$0.00HK416 Full Auto Ambi Selectors Kit - German HKEach set comes complete with everything you will need to upgrade your HK 416 to an ambi selector lever set up. Factory correct German HK and all steel construction.Each factory HK German Kit Includes: 2 X...HKP-17552$0.00 -
H&K HK MR556/MR762 Front Lower Receiver Locking Pin
H&K Heckler & Koch
$59.95HK MR556 Locking Pin With Spring Loaded Detent Front pin assembly for the MR556, or other AR Variants. This is the front (large) takedown pin with ball detent and locking mechanism installed. The idea behind this type of system is to decrease the...HKP-02663$59.95 -
H&K HK MR556/MR762/416/417 V1 Battle Grip - Black
H&K Heckler & Koch
$79.95HK MR556, 416 & HK MR762, 417 Variant 1 Battle Grip This is a great upgrade for any AR15, M16/416 platform. New factory German HK manufacture. Compatible with: MR556 HK416 MR762 HK417 All AR-15, M4 & M16 modelsHKP-01023$79.95 -
HK MR556/416 10.5" Super Modular Rail System - Black
Geissele
$459.95Geissele HK416, MR556 10.5" Modular Rail - Black 9.7 " Extended free float rail for use with all HK 416 & MR 556 barrelsPlease note: On the HK416 models the sling attachment point on the gas block will need to be removed to allow the handguard to...HKP-16459$459.95 -
Out Of Stock
Mag Grip - Dual Magazine Clamp For HK 93/33, MR556, HK 416 & AR Dual Magazine Clamp
$26.95HK 93/33 & HK MR556, HK416 Dual Magazine Clamp/Mag GripThe HK 93/33/53 & HK MR556 & HK 416 magazine grip or dual magazine clamp. Fits all steel bodied magazines. Holds two magazines together for ease of use and easy access to 2 magazines...HKP-17773$26.95 -
H&K German Leather Sling - Used-Very Good
H&K Heckler & Koch
$59.95Original Surplus German HK Leather 2 point sling - Used Very Good Comes with HK sling hook. Pulled from German military G3 rifles. Complete and in good shape overall. Made with leather straps and steel hardware and HK sling hook. Last of the...HKP-20345$59.95 -
On Sale
SB Tactical SBA4 Pistol Stabilizing Brace
SB Tactical
Now: $114.95Was: $159.95Includes Mil-Spec Buffer Tube as seen in pictures Designed for all platforms capable of accepting a mil-spec carbine receiver extension. The SBA4 is 5-position adjustable and features an integral, ambidextrous QD sling socket. Features: Designed...HKP-19927Now: $114.95Was: $159.95 -
H&K HK MR556/416 E1 Charging Handle
H&K Heckler & Koch
$129.95New HK Designed HK416, MR556 Ambidextrous Charging Handle (E1).The E1 HK 416 charging handle release latch has the ability of being swapped from the left side (E1) to the right sight (E2) with simple tools. HK's own design boasts a smooth & easy to...HKP-01959$129.95 -
H&K HK MR556/416 Right or Left Side Safety Selector
H&K Heckler & Koch
$24.95HK German MR 556 & HK 416 Safety Lever- Right Or Left Side: HK German manufactured right or left side selector lever for the ambidextrous controls of the HK 416, MR556 family of firearms. Will work for both semi and select fire models. Each set will...HKP-15250$24.95 -
H&K HK MR556, HK 416 A5 Enhanced Incomplete Trigger Guard
H&K Heckler & Koch
$39.95Enhanced HK Trigger Guard Upgrade Incomplete - A5 - HK 416 & HK MR556 Never offered before! Now you can upgrade your MR556, 416 & CR556 to the latest Gen HK 416 A5 Enhanced Trigger Guard. Enlarged Trigger guard area to use with gloves. New HK...HKP-19377$39.95