Rosco Manufacturing Bloodline 5.56/300BLK M16 Bolt Carrier Group - Melonite
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Rosco Manufacturing
Overview
The Rosco Manufacturing Bloodline M16 Bolt Carrier Group is designed for both 5.56 NATO caliber rifles, featuring a nitride finish that enhances durability and corrosion resistance. The M16 style carrier offers a full-auto profile, which can improve reliability and cycling in semi-automatic builds as well. This BCG is a popular choice for builders looking to construct robust, high-performance AR-15 configurations.
Specifications
Rosco Manufacturing Bloodline 5.56/300BLK M16 Bolt Carrier Group - Melonite
Build history on GunPartPicker
Builders on GunPartPicker first added the Rosco Manufacturing Bloodline 5.56/300BLK M16 Bolt Carrier Group - Melonite to a build in March 2026.
It was in stock most days in September 2026, but today 2 of the 8 retailers we track have it in stock. Prices barely moved in September 2026, holding around $120.60, so there haven't been real sales lately. Buying today, the lowest price is $131.40 at Primary Arms, above September's low of $120.60, so a better deal may come back.
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