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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Maglula Gen 2 AR-15 5.56/.223 Mag Loader/Unloader
Maglula
$26.95Maglula Magazine Loader/Unloader - Generation 2, Lula, 223 Rem/556NATO, Fits AR-15 - Black The Maglula LULA magazine loader & unloader AR-15 for 223 Remington / 5.56mm NATO is a mil-spec tool that...HKP-14545$26.95 -
HK416, MR556, MR762 Bolt Catch Plunger
H&K Heckler & Koch
$5.95Heckler and Koch HK MR556 and HK416 Bolt Catch Plunger Compatible With: HK416, MR556 HK MR762HKP-02655$5.95 -
Out Of Stock
HK416, MR556 Ejection Port Cover Assembly
H&K Heckler & Koch
$89.95HK German HK 416, MR556 Ejection Port Cover Door Assembly Complete This is the newer polymer style cover found on the latest HK 416 and MR556's. This is the complete ejection port door assembly...HKP-16951$89.95 -
Out Of Stock
HK416, MR556, HK417, MR762 Clamping Sleeve
H&K Heckler & Koch
$5.95H&K HK 416/417/MR556/MR762 Clamping Sleeve Compatible With: HK416 HK417HKP-16618$5.95 -
Out Of Stock
HK416, MR556, HK417, MR762 Bolt Catch Spring
H&K Heckler & Koch
$6.95Heckler and Koch HK MR556/762/416/417 Bolt Catch Spring Compatible With: HK MR556 HK 416 HK MR762 HK 417HKP-16661$6.95 -
HK416 Reaction Rod
Nefarious Arms
$124.95Nefarious Arms - Reaction Rod - HK416 The Nefarious Arms HK416 Reaction Rod is used to securely hold the upper receiver in a bench vise so that work may be performed on the muzzle device. It is...HKP-21272$124.95 -
Out Of Stock
HK416, MR556, HK417, MR762 Magazine Catch Spring
H&K Heckler & Koch
$9.95Heckler and Koch Magazine Catch Spring for HK 416, HK MR556 and HK417, MR762 HK German manufacture. Compatible With: HK416, MR556 M27HKP-02620$9.95 -
HK416, MR556 Magazine Release Button
H&K Heckler & Koch
$16.95Heckler and Koch Magazine Release Button for HK416 and HK MR556 New HK German Manufacture. Compatible With: HK416, MR556 AR15, M4, M16 firearmsHKP-02656$16.95 -
HK416, MR556, G36, SL8 Gas Piston
Nefarious Arms
$74.95Nefarious Arms Gas Piston for HK G36, HK SL8, HK416 and HK MR556 A great spare, upgrade, or replacement part for your HK. Includes 3 piston rings for a complete drop in replacement part. TiN coated...HKP-21364$74.95 -
HK416, MR556, HK417, MR762 Selector Lever Clamping Sleeve - Ambi
H&K Heckler & Koch
$5.95H&K MR556/MR762/416/417 Ambidextrous Selector Clamping Sleeve German H&K factory clamping sleeve for ambidextrous selector levers on MR556, MR762, HK416, and HK417. Compatible With: HHKP-22062$5.95 -
HK416, MR556 Piston Guide - Threaded - Upper Receiver
H&K Heckler & Koch
$19.95Heckler and Koch Upper Receiver Threaded Piston Guide for HK MR556 and HK416 Compatible With: HK416, MR556 M27HKP-02640$19.95 -
HK416, MR556 Bolt Catch
H&K Heckler & Koch
$60.95Heckler and Koch HK MR556 and HK416 Bolt Catch New HK German manufacture. Compatible With: HK416, MR556HKP-02542$60.95