HK416 / MR556 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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On Sale
HK416, MR556 Handguard - 12.5" - M-LOK
H&K Heckler & Koch
Now: $170.95Was: $189.95H&K HK MR556/HK416 12.5" M-LOK Compatible Handguard Manufactured by HK from aircraft grade aluminum, this M-LOK handguard is designed for the Heckler & Koch MR556 & HK 416 rifles. This handguard showcases a 12.5" length and includes a...HKP-99321Now: $170.95Was: $189.95 -
On Sale
HK416 A1, MR556 A1 Barrel Nut
Nefarious Arms
Now: $42.95Was: $49.95Nefarious Arms HK MR556 A1/416 A1 Barrel Nut Whether replacing a barrel nut or sourcing the best parts for your build, the Nefarious MR556/416 barrel nut is an excellent option. Meticulously crafted in the US to the highest quality standards...HKP-22279Now: $42.95Was: $49.95 -
On Sale
HK416 A5 Front Sight Adapter
H&K Heckler & Koch
Now: $88.95Was: $97.95H&K HK416 A5 Front Sight Adapter Designed for secure and precise installation of factory-style front sights. Compatible With: HK 416HKP-22204Now: $88.95Was: $97.95 -
On Sale
HK416, MR556 Barrel - 5.56 - 9" - Threaded 1/2"x28 - PDW - A1 and A3
Nefarious Arms
Now: $535.95Was: $594.95Nefarious Arms HK 416C 9" Barrel The Nefarious Arms HK416/MR556 Barrel is built for shooters who demand precision, durability, and consistent performance. Made in the USA from 4150 chromoly steel, cold-hammer-forged, and chrome-lined for enduring...HKP-21906Now: $535.95Was: $594.95 -
Out Of Stock
Picatinny Bipod Mount - Polymer - Rubber Feet
B&T Brugger & Thomet
$145.00B&T Bipod (Polymer) - Picatinny Mount - Rubber Feet Genuine B&T bipod with NAR adapter (Picatinny mount) for use on any firearm featuring a Picatinny bottom rail.HKP-21773$145.00 -
On Sale
HK416, MR556 10" M-LOK Rail System - FDFE
KDG Kinetic Development Group
Now: $287.95Was: $319.95Rail System - 10" - Brown - M-LOK - HK MR556 The New KDG HK 556 M-LOK rails are direct mount rail system, replacing the factory HK 556 rail systems. These new rails are identical in design to their big brother, the KDG HK 762 M-LOK Rail system. Like the...HKP-19240Now: $287.95Was: $319.95 -
On Sale
HK416, HK MR556 M-LOK Handguard with Overgrip - 11" - Coyote Tan
B&T Brugger & Thomet
Now: $249.95Was: $365.00B&T M-LOK Handguard for HK416/MR556, 11" with "Overgrip" Free-Cut on the Top Rail B&T's one-piece 11" M-LOK handguard for HK416 and MR556 rifles. The handguard is an easy to install, direct replacement requiring no gunsmithing. The...HKP-20401Now: $249.95Was: $365.00 -
On Sale
HK416 E1, MR556 Charging Handle - Incomplete
H&K Heckler & Koch
Now: $98.95Was: $109.95HK MR556, HK 416 E1/E2 Charging Handle - Incomplete New HK German manufactured HK MR556, HK 416. A great item to have on hand in the event of breakage or high wear. Compatible With: HK MR556 HK 416 HK M27HKP-17540Now: $98.95Was: $109.95 -
HK416 Bolt Head, Complete
H&K Heckler & Koch
$788.95HK German Heckler and Koch's Bolt Head Complete for your HK416 New HK German manufacture for the HK416 models. Date coded, proof marked and current HK production.HKP-00044$788.95 -
On Sale
AR-15 Stock - ACS - Mil-Spec
Magpul
Now: $79.95Was: $93.95Magpul AR-15 ACS Stock - Mil-Spec The patent-pending Magpul ACS (Adaptable Carbine/Storage) mil-spec model is a drop-in replacement butt-stock for AR15/M16 carbines using mil-spec-sized receiver extension tubes. Similar to the Magpul CTR, the ACS also...HKP-01134Now: $79.95Was: $93.95 -
HK416, MR556 2-Stage Trigger - Full-Auto
H&K Heckler & Koch
$449.95HK416, MR556 2-Stage Trigger - Full-Auto Factory HK 2-stage full-auto HK416 trigger. Compatible with semi-auto HK416's and MR556's. We have a small number of these triggers and HK will not be importing any more units from Germany. Once these...HKP-22423$449.95 -
On Sale
Rail Panel Cover - M-LOK - 6 Slot
JMK
$24.95 - $26.95JMK Rail Panel Cover - M-LOK - 6 Slot JMK M-LOK rail panels are compatible with platforms featuring 6 M-LOK slots. These modular panels are suited for numerous applications. Each panel is sold individually. M-LOK panels are CNC-machined from solid...HKP-22404-M$24.95 - $26.95