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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GSG9 HK416, MR556 Firing Pin
GSG9
$34.95Firing Pin for HK 416 & MR556 Firearm - USA - GSG9 New US made HK 416 & MR556 Made from hardened stainless steel. HK416 HK MR556 HK CR556 HK M27HKP-20650$34.95 -
Out Of Stock
H&K HK MR556/416 Standard Length Quad Rail Black
H&K Heckler & Koch
$0.00HK 416, MR556 Quad Rail- Standard LengthHK German HK416 & MR556 quad rail complete that includes HK 416/MR556 Handguard Screw. This handguard can also be installed on the CR556 models as well HK 416 HK MR556 HK CR556HKP-02546$0.00 -
Out Of Stock
H&K HK MR556/MR762/416/417 Bolt Catch Spring
H&K Heckler & Koch
$0.00HK 416, MR556, MR762, HK 417 Bolt Catch SpringNew HK German manufacture fits all: HK MR556 HK 416 MR 762 HK 417HKP-16661$0.00 -
JMAC Universal HRD M-LOK Handstop
JMAC Customs
$49.95JMAC HRD M-LOK Handstop (H)and(R)etention(D)evice Compact, lightweight, & reversible. Features: M-Lok Compatible Fits in and across M-Lok Slots Includes mounting hadware 7075 T6 Aluminum Hard Coat Anodized The quarter-turn T-slot nuts have...HKP-21235$49.95 -
H&K HK 416 Flip Up Rear Sight- 3mm
H&K Heckler & Koch
$299.95HK 416, MR556 & 417 Flip Up Rear Sight (Diopter 3mm Sight) Attaches to any standard Picatinny rail. No hardware is needed as this is a self-contained quick-attach rear sight assembly. This unique HK-designed sight features a quick & easy push...HKP-01405$299.95 -
Out Of Stock
H&K HK 416 Vented Gas Block for 14.5"/16" Barrels
H&K Heckler & Koch
$249.95HK German 416, MR556 14.5" & 16.5" & 20" Gas Block Complete This is the factory-correct gas block with the ambi sling attachment points, as well as the bayonet lug milled into the gas block. Perfect for those who want to swap the MR556 gas block...HKP-01544$249.95 -
H&K HK MR556 M-LOK 16.5" Forearm Upper Kit - Black
H&K Heckler & Koch
$1,779.95New HK Factory German MR556 Upper Kit with M-Lok forearm HK MR556 Upper kit includes: Complete MR556 upper receiver with M-Lok forearm MR556 Bolt group Complete Tungsten Filled HK Buffer HK Buffer Spring One 30 Round HK Steel Maritime Magazine No FFL...HKP-17366$1,779.95 -
H&K HK MR556/416 Enhanced Field Cleaning Kit
H&K Heckler & Koch
$169.95HK HK416/ MR556 (all variants & models) field cleaning kit- EnhancedCleaning kit made both the HK 416, MR556 series of rifles and MG's.Each Kit Includes the following parts: Saf-T-Clad Cleaning Rod HK Carbon Scraping Tool Accessory Adapter Section...HKP-17061$169.95 -
H&K HK417/MR556 Trigger, Hammer Pin
H&K Heckler & Koch
$9.95HK417, MR556 Trigger, Hammer PinHKP-15456$9.95 -
HK 416, MR556 Roll Pin for Charging Handle - HKP
$7.95HK Clamping Sleeve or Roll Pin for Pawl On Charging Handle. This is the shorter one that is used on the inside of the charging handle. There are two of these pins used per charging handle.HKP-16536$7.95 -
HKP HK MR556/416 1/2 X 28 Compensator Flash Hider - Black
HKP HK Parts
$39.95.556/.223 Blitz Compensator/Flash HiderThreaded in 1/2 X 28 for use on all HK 416, MR556 and other AR style applications. Great flash hider to use to upgrade the MR556 flash hider. The "Blitz" compensator is one of the most effective designs available...hkp-18468$39.95 -
Strike Industries QD & Sling Hook Sling Attachement
Strike Industries
$28.95Ambush QD Sling Loop The Strike Industries Ambush low profile sling loop is the lowest profile sling loop designed for the MIL-STD-1913 rail. Made of solid steel, its unique locking bar design system allows for it to be lightweight and durable. Because...HKP-17381$28.95 -
H&K HK MR556, HK 416 A5 Ambi Selector Lever Set Complete - Black
H&K Heckler & Koch
$179.95HK 416-A5 SEMI & MR556 Ambidextrous Selector Lever Set Complete - BlackNew 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-19375$179.95 -
H&K HK MR556/416 Bolt Catch Plunger
H&K Heckler & Koch
$8.95HK MR556 & HK 416 Bolt Catch PlungerHKP-02655$8.95 -
H&K HK MR556/416 Forward Assist Pin
H&K Heckler & Koch
$4.95Forward Assist Pin For MR556 & HK416 PinHKP-02662$4.95 -
H&K HK MR556/416 Operators Manual
H&K Heckler & Koch
$39.95New Latest Print Production HK German 416/MR556 Operators Manual Each manual is 62 pages and is the go to resource to maintain, clean, and become well versed with the HK 416 and MR556 series of weapon systems.HKP-00054$39.95 -
H&K HK MR556/416/G36 Cleaning Kit
H&K Heckler & Koch
$79.95HK Factory German G36, HK416, & MR556 Complete Cleaning Kit Each kit includes the following parts: Saf-T-Clad cleaning rod Accessory adapter section #8-32 Patch holder Chamber cleaning brush Bore cleaning brush Double-ended utility brush Formula 3...HKP-00035$79.95 -
Out Of Stock
H&K HK MR556/416A5 Quad Rail w/ Flip Up Sight - Black
H&K Heckler & Koch
$0.00HK 416A5 9" Quad Rail With Flip Up Front Sight - BlackNew latest production HK 416A5, MR556 9" quad rail with integrated built in front flip up sight. Latest upgraded design with the laser markings for the adjustable gas block for suppressed and...HKP-17710$0.00 -
H&K HK MR556/MR223 Upper Receiver w/ F/A & Ejection Door
H&K Heckler & Koch
$694.95New HK German Partially Pre-Assembled MR556/MR223 Upper Receiver Each unit comes just as shown with the F/A (forward assist) assembly and ejection port door assembly installed from the HK factory. Compatible With: HK MR556 HK MR223 HK...HKP-16950$694.95 -
H&K HK416, MR556 12.5" M-LOK Compatible Handguard
H&K Heckler & Koch
$334.95Heckler & Koch MR556 & HK 416 - 12.5" M-LOK Handguard Manufactured by HK from aircraft grade aluminum with a black hard coat anodized finish, this M-LOK handguard is designed for the Heckler & Koch MR556 & HK 416 rifles chambered in...HKP-19695$334.95 -
HKP HK MR556/CR556/MR762 H-Key 14 Rail Segment
HKP HK Parts
$39.9514 slot rail segment for the new "HKey" style forearms. This 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 similar models. Made from aircraft grade aluminum, fully hard...HKP-17846$39.95 -
Magpul PMAG D-60 60 Round AR-15 5.56 / .223 Drum Magazine
Magpul
$135.95The PMAG D60 is a durable, lightweight, highly reliable 60-round 5.56x45 NATO/.223 Remington polymer drum magazine for AR15/M4 compatible weapons. The unique drum configuration keeps the height of the magazine manageable as well as allowing for prone...HKP-18006$135.95 -
B&T HK 416, HK MR223 M-Lok Handguard for (11") - Coyote Tan
B&T Brugger & Thomet
$279.95B&T M-Lok Handguard for HK416/MR223 (11") - Coyote Tan B&T's one-piece 10-inch MLOK handguard for the Heckler & Koch HK416 and civilian equivalent MR223 is an amazing improvement for the combat value of these rifles. A direct replacement for...HKP-20400$279.95 -
Ergo Tactical Grip For MR556/MR762-Dark Earth
Ergo
$52.95Ergo Grip PSG1 Style Grip For MR556 & MR762- DARK EARTH 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,...HKP-17192$52.95 -
H&K German Leather Sling - Well Used with No Loop
H&K Heckler & Koch
$39.80Original Surplus German HK Leather - Well Used with No Loop Pulled from German military G3 rifles. Last of the remaining units, get them before they are gone. Can be used on many firearms: HK91, G3, PTR91 & CETMEHK93, 33, 53HK94, MP5HK clones...HKP-20583$39.80 -
H&K HK 416 .22 Folding Front Sight
Umarex / Walther
$59.95Umarex HK 416D .22 LR folding front sight that attaches to the built in gas block. This is a drop in part that does not require any gunsmithing or special applications on the HK 416D .22 Rifle or pistol. Each unit comes complete with the mounting...HKP-02681$59.95 -
Out Of Stock
H&K HK MR556/416 Charging Handle Release Latch
H&K Heckler & Koch
$0.00HK Ambidextrous HK416, MR556 Charging Handle Release LatchPerfect replacement item for the MR556 & HK 416 charging handle. New HK German manufacture. These can become chewed up and damaged with a hard drop or with heavy use. This is a great item to...HKP-16553$0.00 -
$7.95 -
HKP HK MR556/416 Barrel Mandrel Tool
HKP HK Parts
$169.95US Made - HK 416, MR556 Barrel Mandrel Tool.HKP-19059$169.95 -
HKP HK MR556/416 SS Firing Pin
HKP HK Parts
$29.95Firing Pin For HK 416 & MR556 Firearm - USANew US made HK 416 & MR556 stainless steel firing pin. Made from hardened stainless steel and come new in the white. HK416 HK MR556 HK CR556 HK M27HKP-01756$29.95 -
HKP HK MR556/CR556/MR762 H-Key 17 Rail Segment
HKP HK Parts
$44.95HK MR556, CR556 & MR762 HKey Rail Segment - 17 Slot17 slot rail segment for the new "HKey" style forearms. Â This 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-17847$44.95 -
Lancer 30 Round AR15, M4 223 Rem/556NATO Magazine - Translucent
Lancer
$25.95Lancer, L5 Advanced Warfighter Magazine, 223 Rem/556NATO, 30Rd, Fits AR Rifles, Clear Lancer set out to engineer a better magazine; one with the reliability of steel" durability of polymer and weight of aluminum - the L5AWM. The magazine design includes...HKP-19558$25.95 -
Swiss Military Single Point Sling - OD Green - Used
$34.95Swiss Military Single Point Sling in OD Green - USEDHKP-19794$34.95 -
Ergo 1 1/2" Harris Bipod Slide Mount With Sling Stud
Ergo
$19.95The ERGO 1.5& Slide Mount slides onto 1913 Picatinny rail, allowing shooters to mount a variety of rail accessories, including swivels or bipods. Slides onto Picatinny rails and held in place with set screw Designed for mounting a variety of rail...HKP-15737$19.95 -
Out Of Stock
H&K HK 416/MR556 Commercial Factory German E2 Rear Stock - Black
H&K Heckler & Koch
$0.00HK 416, MR556 Factory German E2 Rear Stock - CommercialHK German Stock For All HK 416, MR556 RiflesThe HKE2 Buttstock fits Commercial buffer tubes (receiver extensions) for M4/AR15 type weapons and has the concave style removable buttpad installed.HK E2...HKP-18360$0.00 -
H&K HK 417/MR556 Pin Look Index
H&K Heckler & Koch
$6.95HK 417, MR556, MR762 Pin Look IndexHKP-02639$6.95 -
H&K HK MR556 Factory Compensator Flash Hider - Black
H&K Heckler & Koch
$39.95HK Factory German Manufacture MR556 HK Factory Flash Hider, Compensator.Full birdcage style the real deal German manufactured found on all HK MR556 models.Threaded 1/2 X 28 for use on all HK 416, MR556 and other AR style applications. Great flash hider...HKP-16926$39.95 -
H&K HK MR556/416 Semi Auto Axle For Selector Lever
H&K Heckler & Koch
$119.95MR556 & HK 416 Semi Auto Selector AxleHK German safe, semi selector axle for the MR 556 & HK 416 family of firearms.All steel construction.HKP-15433$119.95 -
Out Of Stock
H&K HK MR556/416 Spring Lock Bolt
H&K Heckler & Koch
$0.00HK 416, MR556 Spring Lock BoltHK German MR556, HK 416 Spring LockHKP-16848$0.00 -
H&K HK MR556/CR556 Complete Bolt Group
H&K Heckler & Koch
$684.95HK MR556 Complete Bolt Group HK's MR556 bolt group includes the following HK German factory parts: MR556 Bolt Carrier Bolt head complete Firing pin spring Firing pin Cam pin All misc parts that comprise a complete bolt group Bolt carriers will be...HKP-02618$684.95