HK416 / MR566 Small Parts

HKP Gas Piston Ring Replacement Combo Set- 3 Rings The gas rings are prone to periodic breakage and wear and tear and require them to be replaced periodically. These are some of the most common...

Heckler and Koch HK416, HK MR556, HK MR762 Buffer Retainer Pin Compatible With: HK416, MR556 HK MR762

Magpul M-LOK 5 Slot Rail Section Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Aluminum Rail Sections allow the attachment of various 1913 Picatinny spec rail-mounted...

H&K HK MR556/416 Ejection Port Cover HK manufactured newer polymer style cover assembly found on the latest HK 416 & MR556. This item can also be used on other AR15-style projects to enhance the...

Heckler and Koch HK MR556, HK MR762, 416/417 Buffer Retaining Pin New HK German proprietary HK designed buffer pin unique to the HK 416 and MR 556 series.  Compatible With: HK416, MR556 HK MR7

H&K HK MR556/MR762/416/417 Takedown Pin Detent Spring New HK German manufacture. Detent spring for the rear takedown pin. Compatible With: HK MR556 HK 416

H&K HK MR556/416 Sling Loop Backplate - Ambidextrous Genuine HK German manufactured 416, MR556 new style backplate with sling loop. Compatible With: HK MR556, HK 416 buffer tubes

H&K HK MR556/MR762/416 Clamping Sleeve Safety Lever There are one of the same pin on both sides. Compatible with: HK MR556 <

HK MR556/MR762/416/HK417 Buffer Retainer Spring This item is the spring for the buffer retainer that is held in the rear of the lower receiver. Compatible With: HK MR556

H&K MR556/MR762/416/G36 (5.56/.223) & (7.62x51/.308) Extractor Spring   A must-have replacement wear part and a great item to have on hand.

Heckler and Koch HK416 and HK MR556 Ejection Door Lock Bolt or Roll Pin Compatible With: HK416 A1, A3, A5 HK MR556 A1, A4

Snap Hook 1" This is a 1" HK-style snap hook for sling or other custom projects. We also offer 1.25" HK sling hooks, as these are great spare parts to have on hand.