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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B&T HK MG5 Unigrip QD with Bipod
B&T Brugger & Thomet
$239.95B&T HK MG5 Unigrip QD with Bipod This grip is made for the HK MG5 but is very versatile and can attacht to any firearm that has a forearm with a picatinny rail. It is primarily a foregrip, but due to the integrated bipod (which can be deployed...HKP-21051$239.95 -
H&K 416 (5.56/.223) German Flash Hider
H&K Heckler & Koch
$95.95H&K 416 (5.56/.223) German Flash Hider This flash hider is not compatible with suppressors. Compatible With: HK 416 A5- 11" HK 416 A5- 14.5" HK 416 A5 - 16.5" HK 416 A5- 20"HKP-18521$95.95 -
Out Of Stock
H&K 416A5 RAL 8K Stripped Upper Receiver
H&K Heckler & Koch
$0.00HK German Un-Assembled Stripped HK 416A5 Upper Receiver - RAL 8K Brand new factory German RAL 8000 416A5 upper receiver. Compatible With: HK MR556 HK MR223 HK 416 Looking for a matching lower for your build? STS416 A5 LOWER - Specialized Tactical...HKP-18787$0.00 -
H&K HK MR556/416 Complete Floor Plate
H&K Heckler & Koch
$10.95HK German HK 416, MR556 Floor Plate Extension Complete All steel HK Marked 30, 20 & 10 round floor plates. Each unit comes complete with the rubber bushing installed in the maritime finish. It is a great spare to have on hand as these do break...HKP-15209$10.95 -
H&K HK MR556/416 Handguard Picatinny Quad Rail - FDE
H&K Heckler & Koch
$549.95H&K HK MR556/416 Handguard Picatinny Quad Rail - FDE Handguard with Picatinny Quad Rail profile on 3, 6 and 9 o'clock, STANAG 4694 profile on 12 o'clock. New HK German. Compatible With: HK 416 A5 - 14.5" HK 416 A5 - 16.5" HK 416 A5 - 20"HKP-18553$549.95 -
H&K HK XM8 Sling - Black
H&K Heckler & Koch
$99.95H&K HK XM8 Sling - Black New HK German XM8 Tactical Sling. The real deal and a rare HK collectible. Only a few available.HKP-17669$99.95 -
Out Of Stock
HKP HK 416 Upper Receiver
HKP HK Parts
$489.95US Made Complete HK 416, MR556 Style Upper Receiver New US made HK416/MR556 style upper receiver. Includes: Upper receiver Forward assist assembly Ejection port door assembly Piston guide Compatible With: HK MR556 HK MR223 HK 416 Need a...HKP-17783$489.95 -
On Sale
Magpul M-LOK Bipod Mount
Magpul
Now: $19.95Was: $29.95Magpul M-LOK Bipod Mount The Magpul M-LOK Bipod Mount allows for the attachment of Harris®-style stud mounted bipods to M-LOK compatible hand guards and forends. The M-LOK Bipod Mount offers a low-profile, robust, and elegant mounting solution for...HKP-17269Now: $19.95Was: $29.95 -
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 -
H&K HK MR556, HK 416 9" M-LOK Handguard - Black
H&K Heckler & Koch
$399.95Handguard - 9" - Black - M-LOK - HK MR556, HK 416 New HK German manufactured forearm for the HK 416 and MR556 firearm. Comes exactly as pictured.HKP-19670$399.95 -
H&K HK MR556/MR762/416/417 Forward Assist Plunger Spring
H&K Heckler & Koch
$9.95Forward Assist Plunger Spring For MR556, HK416, HK417 & MR762 New HK German manufacture. Compatible With: HK MR556 HK 416 MR762 HK 417 HK G28 HK M27HKP-02537$9.95 -
HK MR556/416 Firing Pin Catch
H&K Heckler & Koch
$19.95HK MR556/416 Firing Pin Catch Compatible With: HK MR556/416HKP-16846$19.95 -
On Sale
Magpul AR-15 CTR 6 Position Stock- Commercial
Magpul
Now: $44.95Was: $79.95Magpul AR-15 CTR 6 Position Stock - Commercial Spec The Magpul CTR (Compact/Type Restricted) Commercial-Spec Model is a drop-in replacement buttstock for AR15/M16 carbines using mil-spec-sized receiver extension tubes. The streamlined A-frame...HKP-02375Now: $44.95Was: $79.95 -
Magpul XTM Hand Stop Kit
Magpul
$19.95Magpul XTM Hand Stop Kit The four-piece XTM Hand Stop Kit is a lightweight, low-profile rail-mounted index point for improved weapon control or as a forward stop to prevent the shooter's hand from reaching the hot front sight assembly or muzzle. The kit...HKP-14535$19.95 -
Troy Industries - HK MR556/416 - Offset Sight Set - Front and Round Rear
Troy Industries
$265.95HK 416 / MR556 - 45⁰ OFFSET BATTLESIGHT SET – HK FRONT & ROUND REAR Durability and dead-on accuracy have made Troy Industries Folding BattleSights the choice of Special Ops and tactical users worldwide. The TROY 45 Degree Folding...HKP-21289-M$265.95 -
On Sale
AR-15 Magazine Loader
USA
Now: $22.95Was: $39.95AR-15 Magazine Loader - Ram-It Loader Magazine Loader for 556 and 223 magazines. Made in the USA from ABS. Very simple to use.HKP-21154Now: $22.95Was: $39.95 -
$24.95 -
H&K HK 416 Commercial OTB Buffer Tube HK E1 Stock Combo - Black
H&K Heckler & Koch
$469.95HK 416 OTB E1 Stock & Buffer Tube Combo - Commercial Genuine HK 416 E1 commercial stock with the new style marine environment "over the beach" buffer tube. Buffer tube has ball bearing rollers to tighten the stock when locked in position, and helps...hkp-18361$469.95 -
H&K HK MR556/MR762 Tactical Sling Adapter
H&K Heckler & Koch
$130.00HK MR556 & MR762 Factory Sling Adapter - Swivel Style Factory HK German design. New HK manufactured part that allows the factory HK416 and MR762 slings to fit the MR556 and MR762 by providing the proper attachment point. This unit swivels...HKP-02507$130.00 -
H&K HK417/MR556 Trigger, Hammer Pin
H&K Heckler & Koch
$14.99H&K HK417/MR556 Trigger, Hammer PinHKP-15456$14.99 -
HKP HK 416 (5.56/.223) A5 Converted Barrel - Threaded 1/2x28
HKP HK Parts
$588.95HKP/H&K 416 (5.56/.223) & A5 Converted Barrel - Threaded 1/2x28 These barrels began as standard A3 style but have been precisely machined with an A5-style relief cut to fit HK 416 & MR223 A5 uppers. Now, you can have a drop-in barrel for your...HKP-21449$588.95 -
Solar Tactical HK MR556/MR762 Kydex Grip Wrap - Black
Solar Tactical
$89.95Kydex Grip Wrap - HK MR762 & MR556 Featureless Kydex grip wrap for use with detachable magazines. Prevents a wrap around style pistol grip. Allows the use of the factory magazine release and detachable magazines over 10 rounds. Preban hi-capacity...HKP-18891$89.95 -
Trijicon RMR/SRO 45° Rail Offset Adapter
USA
$84.95Trijicon RMR/SRO 45° Rail Offset Adapter Perfect for that situation where you need the versatility of a magnified optic paired with a Trijicon RMR or SRO red dot sight in close quarters. This offset rail adapter attaches to the firearm's picatinny...HKP-20336$84.95 -
Ergo Tactical Deluxe Grip w/ Palm Shelf - OD Green
Ergo
$59.95Ergo Tactical Deluxe Grip w/ Palm Shelf - OD Green The Tactical Deluxe with Palm Shelf is the same size and shape as the Tactical Deluxe grip but has the addition of an adjustable palm shelf to support your firing hand. This grip excels on precision...HKP-19981$59.95 -
On Sale
GG&G Picatinny to Harris Bipod Adapter
GG&G
Now: $14.95Was: $39.95Harris Bipod Adapter Made By GG&G Enables a Harris Bi-pod to attach to a mil-spec Picatinny rail. GG&G's AR-15 Harris Bipod Adapter is rugged and low profile. Features of the GG&G Bipod Adapter include a stationary standard swivel stud, a...HKP-02307Now: $14.95Was: $39.95 -
H&K HK 416 A5 Trigger Guard - RAL 8K
H&K Heckler & Koch
$54.95H&K HK 416 A5 Trigger Guard: Check out the factory H&K A5 trigger guard, now available in the highly desirable Ral8000 anodized finish. This is the latest and greatest addition to complete your A5 416 build. Compatible With: HK 416 A3/A5 HK...HKP-21517$54.95 -
H&K HK 416 Ejector Retaining Pin
H&K Heckler & Koch
$6.95HK 416 Ejector Retaining Pin This factory HK German part is the pin that holds the ejector in place on the bolt head. Great to have as a spare part.HKP-00053$6.95 -
Out Of Stock
H&K HK MR556/416 Steel Maritime Magazine Follower
H&K Heckler & Koch
$14.95H&K HK MR556/416 Steel Maritime Magazine Follower Compatible With: HK 416 factory magazines such as 30, 20 and 10 roundHKP-15452$14.95 -
HKP (5.56/.223) A5 Flash Hider - Threaded 1/2x28
HKP HK Parts
$59.95HKP (5.56/.223) HK 416C A5 Flash Hider - Threaded 1/2x28 Made from ordnance grade steel, heat treated, and Melonited (Nitride process) for maximum longevity. Machined correctly to reduce tuning fork noise for a more pleasant time at the range. This is...HKP-21342$59.95 -
HKP (5.56x.223) A5 4 Prong Flash Hider - Threaded 1/2x28
HKP HK Parts
$64.95HKP (5.56x.223) A5 4 Prong Flash Hider - Threaded 1/2x28 Our new 4 prong 416A5 flash hider is what your 416 build is missing. Made from ordnance grade steel, heat treated, and Melonited (Nitride process) for maximum efficiency & longevity. Machined...HKP-21275$64.95 -
Out Of Stock
HKP HK MR556/416 M-LOK 9" Handguard - Black
HKP HK Parts
$199.95HK MR556 & HK416 9" M-LOK ForearmWeight: 10.2 ozMADE IN THE USA AND BILLET MACHINED. MUCH LIGHTER THAN THE HK FACTORY FOREARM OFFERINGS.HKP-17981$199.95 -
HKP Single Point Sling - ACU Digital Camo
HKP HK Parts
$29.95HKP Single Point Sling - ACU Digital Camo HK single-point bungee sling for use on all HK & other firearm applications. This super high-quality sling is a must-have for those who prefer operating with a single-point sling over the traditional 3-point...HKP-15041$29.95 -
PWS Keymod Bipod Adapter for Harris Style Bipods
PWS Primary Weapon Systems
$21.95Keymod Bipod Adapter for Harris Style Bipods The Harris Style Bipod Mount is quick to install and easy to use. Fits snug to your KeyMod or PicMod handguard and ensures a stronghold on your Harris Bipod.HKP-19272$21.95 -
Troy Industries Front Battle Sight - Black
Troy Industries
$119.95Troy Industries Front Battle Sight - Black Durability and dead-on accuracy have made the Troy Industries Front Folding Battle Sight one of the best choices for Special Ops and tactical users worldwide. Please Note: It will not work on a railed front gas...HKP-00031$119.95 -
Out Of Stock
H&K HK MR556 Complete Bolt Head
H&K Heckler & Koch
$329.95New HK German MR556, Bolt Head CompleteBrand new factory German bolt head with all the components to make the bolt head complete. HK MR556HKP-02712$329.95 -
H&K HK MR556/416 Extractor
H&K Heckler & Koch
$76.95HK 416 & MR556 Bolt Head Extractor New HK - German Compatible With: MR556 CR556 HK 416 HK M27HKP-00036$76.95 -
Out Of Stock
H&K HK MR556/416 Standard Length Quad Rail Black
H&K Heckler & Koch
$0.00HK 416, MR556 Quad Rail- Standard Length HK 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. Compatible With: HK 416 HK MR556 HK CR556HKP-02546$0.00 -
H&K MR556/416 Forearm Front Folding Sight - BRN
H&K Heckler & Koch
$597.95HK 416A5 9" Quad Rail With Flip Up Front Sight - BRN 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-17680$597.95 -
HKP HK MR556/CR556/MR762 H-Key 14 Rail Segment
HKP HK Parts
$39.95HKP HK MR556/CR556/MR762 H-Key 14 Rail Segment 14 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...HKP-17846$39.95 -
HKP HK MR556/CR556/MR762 H-Key 17 Rail Segment
HKP HK Parts
$44.95HK MR556, CR556 & MR762 HKey Rail Segment - 17 Slot 17 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...HKP-17847$44.95