Nut, Receiver Extension, HK416
Heckler & Koch
Overview
The Heckler & Koch Nut, Receiver Extension, HK416 is a buffer tube assembly. Compare prices from multiple merchants and find the best deal.
Specifications
Build history on GunPartPicker
Builders on GunPartPicker first added the Heckler & Koch Nut, Receiver Extension, HK416 to a build in May 2026.
It was hard to find in August 2026, in stock on only 6 of the 20 days we checked, and today none of the 2 retailers we track has it in stock right now. The best price crept up from $30.49 to $34.99 over August 2026. Listed prices start at $30.49 at BattleHawk Armory for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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