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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SureFire SOCOM (7.62x51/.308) Muzzle Brake - Threaded 5/8x24
Surefire
$164.95SureFire SOCOM (7.62x51/.308) Muzzle Brake - Threaded 5/8x24 The SureFire muzzle brake is designed for Armalite AR-10, DPMS LR308, and other 7.62 mm rifles with 5/8x24 muzzle threads. It greatly reduces recoil impulse and muzzle rise, featuring neutral...HKP-19789$164.95 -
JMAC Universal M-LOK Skeleton Forward Grip
JMAC Customs
$89.95JMAC Universal M-LOK Skeleton Forward Grip Can be used as a forward grip or a handstop! Features: Reversible and Lightweight M-LOK Compatible (Requires 2 slots) Fits in and across M-LOK Slots Includes mounting hardware 7075 T6 Aluminum Hard Coat...HKP-21240$89.95 -
Nefarious Arms HK G36/SL8/HK 416/MR556 Gas Piston
Nefarious Arms
$64.95Nefarious Arms HK G36/SL8/HK 416/MR556 Gas Piston A great spare, upgrade, or replacement part for your HK. Includes 3 piston rings for a complete drop in replacement part. TiN coated gold for added protection and an overall great part. Compatible...HKP-21364$64.95 -
Strike Industries Link Anchor Poly Handstop
Strike Industries
$19.95Strike Industries Link Anchor Poly Handstop The LINK Anchor Handstop is made from a heat-resistant polymer that allows comfortable grip in any shooting condition. It has a low profile design that allows mounting through any MLOK or KeyMod openings. The...HKP-19645$19.95 -
H&K HK MR556/416 Extractor Axle Pin
H&K Heckler & Koch
$11.95HK MR556 & 416 Extractor Axle Pin This factory HK German part holds the extractor in place on the bolt head. This item needs to be changed each time it is removed per HK. Compatible With: HK 416 MR556 M27 HK 416 A5HKP-00040$11.95 -
H&K HK MR556/416 Roll Pin for Catch On Bolt Carrier
H&K Heckler & Koch
$6.95H&K HK MR556/416 Roll Pin for Catch On Bolt Carrier This roll pin is used in the bolt carrier to secure the catch.HKP-16847$6.95 -
H&K HK416 Full Auto Ambi Selector Lever Kit - 3 Position Polymer Selectors
H&K Heckler & Koch
$159.95HK416 Full Auto Ambi Selectors Kit - German HK - 3 Position Each set comes complete with everything you will need to upgrade your HK 416 to an ambi selector lever set up. The HK 416A5 polymer selector levers will be helpful for a quick visual...HKP-20398$159.95 -
HKP 2 Point Leather Sling - Brown
HKP HK Parts
$49.952 Point Leather Sling - Brown 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. Made in the USA from quality leather and hardware for...HKP-20162$49.95 -
H&K 45mm Picatinny Rail Cover - Black
H&K Heckler & Koch
$14.95HK Rubber Picatinny Rail Cover - 45mm New Factory HK Rubberized Picatinny Rail Cover Specifications: Rail cover dimensions: 45x26x7 mmHKP-18857$14.95 -
Out Of Stock
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 HK MR556/MR762/416/417 Disconnector Spring
H&K Heckler & Koch
$5.95HK416, HK417, MR556, & MR762 Disconnector Spring- Short This is the shorter spring of the 2 found in the trigger assembly. Compatible With: MR556 MR762 HK 416 HK 417HKP-02675$5.95 -
Lancer 30 Round AR-15 Magazine
Lancer
$29.95Lancer 30 Round AR-15 Magazine Lancer set out to design a better 5.56 magazine, one with the reliability of steel and the durability and weight of the polymer. The L5AWM’s exclusive hybrid design includes a hardened steel feed lip assembly...HKP-21188$29.95 -
Remington Defense HK 416 14.5" Handguard - FDE
Defense Remmington
$999.95Remington Defense Handguard Assembly Kit - 14.5" - HK 416 - Tan The most popular handguard for DEVGRU, SEAL teams and other special operators. This is a one time deal once these are gone there will be no more. Compatible With: 14.6 &...HKP-19491$999.95 -
H&K (5.56/.223) Compensator Flash Hider - Threaded 1/2x28
H&K Heckler & Koch
$39.95H&K (5.56/.223) Compensator Flash Hider - Threaded 1/2x28 Threaded 1/2x28 for use on all HK 416, MR556 and other AR style applications. Compatible With: HK 416/MR556 HK MR223 HK G36/SL8 AR15 All M4/M16/AR Variants 5.56/.223 Firearms Threaded...HKP-16926$39.95 -
H&K HK 416/MR556/MR762 Pistol Grip Screw
H&K Heckler & Koch
$9.95HK 416, MR556, & MR762 Pistol Grip Screw This is the screw used to retail all battle grips/pistol grips on the HK and standard AR15 and M16 firearms. Compatible With: HK416 HK MR556 HK MR762 HK417HKP-02679$9.95 -
HKP (5.56/.223) & (7.62x51/.308) 4 Prong Micro Flash Hider - Threaded 15x1 RH
$64.95HKP (5.56/.223) & (7.62x51/.308) 4 Prong Micro Flash Hider - Threaded 15x1 RH New shorter "micro" version US-made 4-prong flash hider threaded 15x1 RH. Micro FH will fit all HK .223 & .308 threaded barrel applications and barrels. Made from...HKP-02189$64.95 -
H&K HK MR556/416, HK MR762/417 Flip Up Rear Sight-2mm
H&K Heckler & Koch
$274.95HK 416/MR556 & MR762/417 Flip Up Rear Sight (Diopter 2mm Sight) This 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 and...HKP-08951$274.95 -
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 -
H&K HK MR556/MR762/416/417 Carrying Sling - FDE
H&K Heckler & Koch
$139.95HK 416, MR556 & MR762 Compatible With: HK 416 HK MR556 HK CR556 MR762 & HK 417, G28 Note: That on the MR556 model a sling adapter will be needed for the front attachment point as the MR556 lacks the ambi sling loop on the gas block unlike the...HKP-18491$139.95 -
H&K HK MR556/MR762/416/417 Magazine Catch Retainer Ring Pin
H&K Heckler & Koch
$8.95H&K HK MR556/MR762/416/417 Magazine Catch Retainer Ring Pin Compatible With: HK 416 MR556 HK 417 MR762HKP-16618$8.95 -
HKP HK MR556/416 Dual Magazine Clamp
HKP HK Parts
$49.95HKP HK MR556/416 Dual Magazine Clamp Securely hold two HK Maritime 416 magazines together for fast mag swaps. Precision-machined from billet aluminum and cerakoted in the popular RAL8000 or classic black, our dual mag clamp is a must for those...HKP-21553-M$49.95 -
Surefire (5.56/.223) Muzzle Brake/Suppressor Adapter - Threaded 1/2x28
Surefire
$165.00Surefire (5.56/.223) Muzzle Brake/Suppressor Adapter - Threaded 1/2x28 The SureFire muzzle brake is designed for M4, M16, HK 416, and MR556 weapons with 1/2-28 muzzle threads. It significantly reduces recoil impulse and muzzle rise, enhancing...HKP-17378$165.00 -
H&K Cable Gun Lock
H&K Heckler & Koch
$19.95HK Cable Gun Lock This is the same lock that ships with factory HK firearms.HKP-02442$19.95 -
H&K HK MR556/416 Forward Assist Assembly
H&K Heckler & Koch
$68.95HK 416, MR556 Forward Assist Assembly H&K Germany factory MR556 & HK416 forward assist assembly complete. Compatible With: HK 416 HK MR556HKP-16528$68.95 -
HKP Single Point Leather Sling - Black
HKP HK Parts
$49.95Single Point Leather Sling - Black Our leather sling utilizes two HK style sling hooks to attach to a single mounting point. Designed to replicate the original, out of production, German HK offering. Each sling is handcrafted in the US by a German...HKP-20151$49.95 -
Surefire 12-Pack 123A Batteries
Surefire
$29.95Surefire 12-Pack 123A Batteries Made in the USA and the "gold standard" in battery performance. These are the best performance, longest lasting 123 batteries available. The price is for a box of 12 new batteries. Ideal for use with lasers, lights,...HKP-02711$29.95 -
On Sale
HKP HK MR556/416 Upper 8" 416C Style Conversion Kit w/ Handguard
HKP HK Parts
Now: $1,119.95Was: $1,495.95MR556 & HK416 Upper Conversion Kit - 8" - HK 416C Style Finally an answer for all of those that have been wanting as close to the original HK 416C 8" barrel conversion kit for 416 or MR556. Each upgrade kit is as close as you can get to a factory HK...HKP-18628Now: $1,119.95Was: $1,495.95 -
H&K 95mm Picatinny Rail Cover - Black
H&K Heckler & Koch
$14.95HK Rubber Picatinny Rail Cover - 95mm New Factory HK Rubberized Picatinny Rail Cover Specifications: Rail cover dimensions: 95 x 26 x 7 mmHKP-18858$14.95 -
H&K HK MR556/416 Enhanced Field Cleaning Kit
H&K Heckler & Koch
$169.95HK HK416/ MR556 (all variants & models) field cleaning kit- Enhanced Cleaning kit made both the HK 416, MR556 series of rifles and MG's. Includes: Saf-T-Clad Cleaning Rod HK Carbon Scraping Tool Accessory Adapter Section #8-32 Patch Holder Chamber...HKP-17061$169.95 -
H&K HK MR556/416 Fire Control Detent Stop Pin
H&K Heckler & Koch
$16.95H&K HK MR556/416 Fire Control Detent Stop Pin HK German.HKP-15272$16.95 -
On Sale
HKP Single Point Leather Sling - Red
HKP HK Parts
Now: $29.95Was: $49.95Single Point Leather Sling - Red Our leather sling utilizes two HK style sling hooks to attach to a single mounting point. Designed to replicate the original, out of production, German HK offering. Each sling is handcrafted in the US by a German artisan...HKP-20160Now: $29.95Was: $49.95 -
Out Of Stock
Gear Head Works Tailhook Mod 1 - FDE
Gear Head Works
$159.95Gear Head Works Tailhook Mod 1 - FDE We start with a solid piece of billet aluminum and meticulously machine every aspect for a part that is as nice to look at as it is to use. This version clamps to pistol buffer tubes or adapter spuds ranging from 1...HKP-19541$159.95 -
GSG9 HK416, MR556 Firing Pin
GSG9
$34.95Firing Pin for HK 416 & MR556 Firearm - USA - GSG9 US made HK 416 & MR556 Made from hardened stainless steel. Compatible With: HK416 HK MR556 HK CR556 HK M27HKP-20650$34.95 -
H&K HK 30 Round 416, HK MR556 5.56x45mm/.223 Maritime Magazine - TiN
H&K Heckler & Koch
$149.95HK 416 & MR556 30 Round Maritime Magazine - TiN Coated Get your hands on some TiN coated factory Heckler & Koch magazines. Each magazine starts out as a fresh 30 round mag before being professionally dsiassembled, TiN coated, and...HKP-21468$149.95 -
H&K HK 416/MR556 Enhanced Buffer Tube-Commercial
H&K Heckler & Koch
$249.95HK 416, MR556 OTB (over the beach) Buffer Tube, Receiver Extension - Commercial: Genuine HK German manufactured 416, MR556 new style latest generation marine environment & over the beach buffer tube. Each Commercial buffer tube has built in drainage...HKP-15424$249.95 -
H&K HK MR556/MR762/416 German E2 Concave Butt Pad
H&K Heckler & Koch
$69.95HK German 416, MR556, MR762, & 417 E2 Concave Butt Pad Can be added as an option on the HK E1 416/417 stock. Providing you an option to use either the concave or convex style buttpads for different mission requirements. Compatible With: HK MR556 HK...HKP-00050$69.95 -
H&K HK MR556/MR762/417/416 Trigger Axle
H&K Heckler & Koch
$19.95H&K HK MR556/MR762/417/416 Trigger Axle Axle for Trigger. Compatible With: HK 416 HK 417 MR556 MR762HKP-16623$19.95 -
Magpul 5.56 NATO Mag Assist - 3 Pack
Magpul
$9.95ORIGINAL MAGPUL® 5.56 NATO, 3 PACK When installed on the base of a 5.56x45 rifle magazine, the original Magpul provides improved speed and control during high stress, tactical magazine changes. Durable synthetic rubber loop with recessed rough...HKP-17320$9.95 -
B&T Unigrip QD with Bipod
B&T Brugger & Thomet
$224.99B&T Unigrip QD with Bipod This B&T foregrip features a retractable bipod for superior weapon stability in both the standing and prone positions. Compatible With: Any firearm featuring a picatinny rail Specifications: Condition:...HKP-21387-M$224.99 -
H&K HK MR556/416 Ejector For Bolt Head
H&K Heckler & Koch
$23.95H&K HK MR556/416 Ejector For Bolt Head HK German factory part. Compatible With: MR556 HK 416HKP-00037$23.95