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Armaspec
Overview
The Armaspec ECB Kit is designed to enhance the performance of your AR-15 or AR-10 by providing a reliable magazine release mechanism. Its FDE color adds a tactical aesthetic while ensuring that the control buffer operates smoothly during rapid magazine changes. This kit is frequently found in 5.56 NATO builds, making it a popular choice for builders looking to optimize their firearm's functionality.
Armaspec ECB KIT - Advanced Control Buffer KIT for AR-15/AR-10 with Durable Finish - ARM204-FDE
Builders on GunPartPicker first added the Armaspec ECB KIT - Advanced Control Buffer KIT for AR-15/AR-10 with Durable Finish - ARM204-FDE to a build in February 2026.
It was out of stock everywhere we track for all of September 2026, and today none of the 3 retailers we track has it in stock right now. Listed prices start at $17.09 at BattleHawk Armory for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
We ranked every magazine release by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Magazine Release Guide →Popular alongside magazine releases on GunPartPicker

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