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
Available Merchants(4)
Prices checked
Price Alert
October 2026 on GunPartPicker
Heckler & Koch Nut, Receiver Extension, HK416 ranked #41 of the 107 buffer tube kits builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #71 of the 213 buffer tube kits builders have added.
Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today 2 of the 4 retailers we track have it in stock. Buying today, the lowest price is $33.69 at Palmetto State Armory, which matches the best price we saw in October.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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