This “D” model (HK 416D) from HK has a 10.4″ barrel and features HK’s grenade launcher module in 40mm. The rifle is similar in most respects to other HK 416s we have seen; It is piston driven with HK-style sights and a steel magazine. But dissimilar to the models before this one, the GLM mounds are under the quad-rail system and can be removed for use as a standalone device. The stock is also a little different with a housing for batteries and a rubber recoil-reducing buttpad with a lot of purchase.

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This "D" model (HK 416D) from HK has a 10.4" barrel and features HK's…