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 MR556/MR762/416/417 Firing Pin Spring
H&K Heckler & Koch
$14.95H&K MR556/MR762/416/417 Firing Pin Spring This part is great to have on hand as this item is a high wear and replacement part and one of the most common breakage parts on the HK 416/MR556 rifles. Compatible With: HK MR556 HK MR762 HK 416 HK 417 HK...HKP-00928$14.95 -
H&K 10 Round HK MR556/416 5.56/.223 Magazine - Black
H&K Heckler & Koch
$69.95HK416 & MR556 Factory - 10 Round Steel Maritime Coated Magazine Compatible with AR-15 & M16 firearms. All steel & stainless construction, maritime coated & made to last a lifetime. Compatible With: HK MR556 HK 416 HK...HKP-02421$69.95 -
HKP HK MR556/416 Handguard Rail System Hex Screw
HKP HK Parts
$9.95HK416, MR556 Replacement Handguard Rail Screw - Hex- Stainless Steel Hex head replacement handguard retention screw for your HK416, MR556 forearm. Made in the USA from 17-4 SS with a 5mm hex head for ease and use when installing and taking off the...HKP-17657$9.95 -
HK Contract 3 Point Sling - Black
H&K Heckler & Koch
$52.95HK Contract 3 Point Sling - Black German military surplus 3 point HK sling in like new condition. These slings are completely operational and a great value for the money. This is the best valued HK 3 point sling available on the market.HKP-19186$52.95 -
H&K HK MR556/MR762/416//417 Complete Piston Rod Assembly
H&K Heckler & Koch
$64.95H&K HK MR556, MR762, 416, & 417 Complete Piston Rod Assembly A great replacement or spare to keep on hand. Compatible With: HK MR556 HK 416 HK 416 A5 MR762 HK 417 Please Note: Does not fit barrels less than 10 inches.HKP-00042$64.95 -
H&K HK MR556/416 Backplate w/ Sling Loops
H&K Heckler & Koch
$46.95HK 416, MR556 Ambidextrous Sling Loop Backplate Genuine HK German manufactured 416, MR556 new style backplate with sling loop. Compatible With: HK MR556, HK 416 buffer tubes All Standard AR-15, M4 & M16 buffer tubesHKP-17151$46.95 -
H&K 30 Round AR-15 5.56x45mm/.223 Magazine - Tan
H&K Heckler & Koch
$99.9530 Round Magazine with Window - Sand Tan - Gen 3 - Heckler & Koch Factory German Heckler & Koch 30-round Gen 3 polymer magazine. Compatible With: HK416 MR223 MR556 AR15 M16 M4 type riflesHKP-19358$99.95 -
H&K HK 416/MR556/MR762 Trigger Guard Pin
H&K Heckler & Koch
$3.95HK MR556 & HK 416 Trigger Guard Retaining Pin Compatible With: HK 416 HK MR556HKP-02678$3.95 -
H&K HK MR556/416 14.5"/16.5" Rear Diopter Sight
H&K Heckler & Koch
$199.95HK MR556 & 416 14.5"/16.5" Rear Diopter Sight HK German Rear Diopter Sight is the proper rear sight to pair with all HK 416 14.5, and MR556 uppers and rifles. This sight can be paired with a fixed front sight or folding front sight.HKP-00027$199.95 -
HKP Single Point Sling - OD Green
HKP HK Parts
$29.95HKP Single Point Sling - OD Green This high-quality sling is a must-have for those who prefer operating with a single-point sling over the traditional 3-point HK sling. Features: Super thick all OD Green heavy-duty Cordura nylon to withstand years of...HKP-09057$29.95 -
HK Contract 3 Point Sling - OD Green
H&K Heckler & Koch
$52.95HK Contract 3 Point Sling - OD Green HK contract 3 point sling NIW. This is the best valued HK 3 point sling available for the HK 90 series of firearms. HK Green in color.HKP-19184$52.95 -
On Sale
HKP AR-15 Mil-Spec Buffer Tube
HKP HK Parts
Now: $14.95Was: $29.95Mil-Spec US Made Buffer Tube Compatible With: HK MR556 & 416 All AR-15 style platforms Features: Made From T7 7075 Aircraft grade aluminum 6 Position Made in the USA Each features a highly polished inside tube Black Mil-spec triple hard coat...HKP-02727Now: $14.95Was: $29.95 -
Magpul M-LOK 5 Slot Rail Section
Magpul
$18.95Magpul M-LOK 5 Slot Rail Section Designed 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...HKP-19568$18.95 -
H&K HK MR556/MR762/416/417/G36/SL8 Complete Gas Piston
H&K Heckler & Koch
$50.95HK MR556, MR762, 416, 417, G36, & SL8 Complete Gas Piston New HK German gas piston assembly with three locking piston rings installed. This is a great spare part to have on hand, as the gas piston takes a lot of wear and tear. Compatible With: HK...HKP-00047$50.95 -
PTR (5.56/.223) & (7.62x51/.308) Bird Cage Flash Hider - Threaded 15x1 RH
PTR
$19.95PTR (5.56/.223) & (7.62x51/.308) Bird Cage Flash Hider - Threaded 15x1 RH Crafted to exacting HK specifications, our new flash hider is manufactured in the USA by PTR 91. This component delivers unparalleled performance and value. Featuring the...HKP-01447$19.95 -
HKP HK 416/MR556 A5 Style Castle Nut-Extended
HKP HK Parts
$39.95HK 416, MR556 A5 Style Extended Length Castle Nut Unlike the factory German A5 castle, our A5 extended buffer tube castle nut is compatible with both mil-spec & commercial buffer tubes. Crafted from ordnance grade steel and nitrided for a...HKP-18058$39.95 -
H&K RAL 8000 Vertical Foregrip
H&K Heckler & Koch
$64.95H&K RAL 8000 Vertical Foregrip: Each Vertical Grip features the factory HK markings & HK's unique locking system. Rotating the knob at the base of the grip to engage/disengage the Picatinny locking piece allows the user to install/remove...HKP-17689$64.95 -
HKP HK Piston Ring Replacement Set - 3 Ring Combo
HKP HK Parts
$8.95HK MR556, HK416 & G36, SL8 Gas Piston Ring Replacement Combo Set - 3 Rings This is a high wear common repair & replacement item. The gas rings are prone to periodic breakage & wear, tear and require them to be replaced periodically...HKP-17933$8.95 -
SB Tactical SBA4 Pistol Stabilizing Brace
SB Tactical
$99.99SB Tactical SBA4 Pistol Stabilizing Brace 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. Compatible With: HK MR556...HKP-19927$99.99 -
PTR (5.56/.223) & (7.62x51/.308) Muzzle Brake - Threaded 15x1 RH
PTR
$25.95PTR (5.56/.223) & (7.62x51/.308) Muzzle Brake - Threaded 15x1 RH Correct HK threading 15x1 right hand with HK style retaining spring to latch on the HK splined barrel. Made in the US and counts as one US 922r compliant part. Specifications: Threaded...HKP-02148$25.95 -
Kaw Valley Precision Mach 3 Modular Linear Comp Body
Kaw Valley Precision
$49.95Kaw Valley Precision Mach 3 Modular Linear Comp Body The KVP MACH Modular Linear Comp is a patent pending linear compensator system that is completely user configurable! If you've struggled to find a comp the correct length for the perfect "tuck,"...HKP-19984$49.95 -
H&K HK 416 A5 Grip V2 - FDE
H&K Heckler & Koch
$49.95H&K 416/417 & MR556/762 A5 Grip V2 - RAL 8000 Compatible With: HK 416/416-A5/MR556 HK 417/417-A2/MR762 HK M27 HK G28 AR-15, M4, & M16 Platforms Please Note: Color representation is based on Heckler & Koch's information. Actual...HKP-18467$49.95 -
H&K HK 416-A5 Enhanced Ambi Bolt Release
H&K Heckler & Koch
$84.95HK German Enhanced ambi 416 Bolt Release - HK 416 A5 The real deal HK German HK416A5 bolt release. Made from hardened steel.HKP-19463$84.95 -
Elite Tactical Systems Universal C.A.M. Loader For Rifles
Elite Tactical Systems
$29.99Elite Tactical Systems Universal C.A.M. Loader For Rifles The first truly universal loader for rifle magazines. A must-have for every rifle owner. Doesn't damage feed lips. Saves time and energy, easy on your thumbs. Features: Loader easily picks up...HKP-18741$29.99 -
HKP HK Parts 2 Point Operator Sling
HKP HK Parts
$19.95HKP HK Parts 2 Point Operator Sling 2 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...HKP-15375$19.95 -
H&K HK 416 10.5" Rear Diopter Sight Assembly
H&K Heckler & Koch
$239.95HK German 416 10.5 Rear Diopter Sight Assembly This is the proper rear sight for use on all HK 416 10.5 uppers and firearms. This is also a great sight alternative for those who need a lower sight setup for the AR, XCR, etc. To be used in conjunction...HKP-01109$239.95 -
H&K Universal Gun Cleaning Wick Set - 8 Piece Set
H&K Heckler & Koch
$1.95Original German Army Issue HK91/G3/PTR Cleaning Kit Wick - Set of 8 Originally issued for the G3,91 & MG3 firearms but will work on pretty much any and all rifles & pistols. Each set comes with 8 BRAND NEW German manufactured cleaning wicks. Each...HKP-17646$1.95 -
HK 416, MR556 & MR762 Battle Grip With Storage - Tan
$129.95H&K 416/417 & MR556/762 Battle Grip With Storage - RAL 8000 New HK German V7 factory battle grip with storage compartment in the bottom of the grip. Superior fit & feel to any other grip on the market. HK has hit a home run with their...HKP-17659$129.95 -
Magpul AFG2 Angled Foregrip for Picatinny Rail - Black
Magpul
$33.95Magpul AFG2 Angled Fore Grip for Picatinny Rail - Black Made in the USA, the AFG-2 (Angled Fore Grip) is a slim line design that is shorter in overall length and width in comparison to the original AFG. By positioning the shooter's...HKP-10655$33.95 -
H&K HK 416/MR556 Mil-Spec Factory German E2 Rear Stock - Black
H&K Heckler & Koch
$199.95HK 416, MR556 Factory German E2 Rear Stock The HKE2 Buttstock fits mil-spec buffer tubes (receiver extensions) for M4/AR15 type weapons and has the concave style removable buttpad installed. Features: Ergonomic cheek weld for improved firing...HKP-01913$199.95 -
HKP 2 Point Leather & Cotton Sling
HKP HK Parts
$59.952 Point Leather & Cotton Sling Designed to replicate the original, out of production, German HK offering. Each sling is handcrafted in the US by a German artisan using quality US leather and hardware. Each sling is approximately 48" long...HKP-21320-M$59.95 -
Barrel Nut - HK 416, MR556 - Stainless Steel
$39.95HK MR556, HK 416 Barrel Nut or Socket For Barrel - Stainless Steel 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 and installation processes. Made in...HKP-17334$39.95 -
H&K HK MR556/416 Extended 11" Quad Rail - Black
H&K Heckler & Koch
$419.99HK MR556/416 Extended 11" Quad Rail - Black This drop-in unit offers two full inches in extra length, not the standard 9" rail that comes with the HK 416/MR556, but an extended 11" rail that allows for a longer sight radius and more rail space...HKP-01960$419.99 -
AIM Sports Low Profile Red/Green Dot Micro Sight
AIM
$59.95Micro Red Dot Low Profile Sight With Green & Red Dot Option For those that require a good, reliable, well made optic without the name brand or heavy price tag, this is an outstanding choice. This micro optic is rated for anything from .22 all they...HKP-16209$59.95 -
HKP HK MR556/416 Standard Length 9" Quad Rail
HKP HK Parts
$228.95 - $244.95HKP HK MR556/416 Standard Length 9" Quad Rail HK416 & MR556 quad rail complete. This handguard can also be installed on the CR556 models as well. Specifications: Made In The USA Includes HK 416/MR556 Handguard Screw Weight: 12.3 oz Compatible...HKP-17963-M$228.95 - $244.95 -
HKP HK MR556/416 A5 Style Trigger Guard - Black
HKP HK Parts
$39.95HKP 416 & HK MR556 HK416A5 Style Trigger Guard Now you can upgrade your MR556, 416 & CR556 to the latest Gen HK 416 A5 Enhanced Trigger Guard. Fully assembled and ready to drop in. With a larger trigger guard area you can now use gloves...HKP-17793-M$39.95 -
H&K HK 416 Full Auto Ambidextrous 3-Position Selector Lever Kit
H&K Heckler & Koch
$139.95HK416 Full Auto Ambi Selectors Kit - German HK Each 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. Includes: 2 X selector levers 2 X roll...HKP-17552$139.95 -
HKP (9mm & 5.56/.223) Thread Protector For Barrels - Threaded 1/2x28
HKP HK Parts
$14.95HKP (9mm & 5.56/.223) Thread Protector For Barrels - Threaded 1/2x28 A must-have accessory to safeguard the threads on your threaded barrel, this thread protector is the finest available. It is the standard thread protector included with all HKPARTS...HKP-02646$14.95 -
Magpul M-LOK Rail Section - 3 Slots
Magpul
$10.95Magpul M-LOK Rail Section - 3 Slots Designed 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...HKP-20661$10.95 -
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 Pad The HK Convex buttpad can be used to swap out on the factory E2 or concave-style buttpads for those who desire this option. This way, you can use the concave or convex-style buttpads...HKP-01915$64.95