H&K Heckler & Koch

HK416A5, MR556 Extended Windowed Handguard - RAL 8000 HK German HK416 A5 extended handguard with window for use of the suppressed/non-suppressed gas block. This handguard is designed to minimize heat...

H&K HK MR556/416 Standard Length Quad Rail 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...

H&K MR556/416 9" Quad Rail With Flip Up Front Sight - Brown Latest production HK 416A5, MR556 9" quad rail with integrated built-in front flip up sight. Latest upgraded design with the laser...

H&K HK MR556/416 Handguard Picatinny Quad Rail - 9.75" - RAL 8K Handguard with Picatinny quad rail profile on 3, 6 and 9 o'clock, STANAG 4694 profile on 12 o'clock. New HK German. Compatible...

H&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...

H&K HK MR556/HK416 12.5" M-LOK Compatible Handguard Manufactured by HK from aircraft grade aluminum with a black hard coat anodized finish, this M-LOK handguard is designed for the Heckler &...

HK416 & MR556 Factory - 10 Round Steel Maritime Coated Magazine  Compatible with AR-15 & M16 firearms. All steel & stainless construction, maritime coated & made to last a...

H&K 20 Round HK MR556 & 416 5.56/.223 Magazine New HK416 and MR556 Factory 20 Round Steel Maritime Coated Magazine. Will fit and work in all AR-15/M16 weapons. Perfect for those who need a...

HK 416 & MR556 30 Round Maritime Magazine - Multiple Color Options Designed to provide optimum ammunition feeding for any M16/M4/AR15-type weapon, the Heckler & Koch 30-round Steel...

HK 416, MR556 30 Round Maritime Magazine - German HK The HK 416 and MR556 magazines will also fit all AR15/M16 variants. Designed to provide optimum ammunition feeding for any M16/M4/AR15-type weapon...

30 Round Magazine with Window - Sand Tan - Gen 3 - Heckler & Koch Factory German HK 30-round Gen 3 polymer magazine.  These magazines come bulk packed from HK and therefore are not...

H&K HK MR556/416 Magazine Catch New HK German manufacture magazine catch for the HK 416 and MR556 family of firearms. Compatible With: HK MR556 HK 416