Radical Firearms 5.56/300 Black Melonite AR-15 Bolt Carrier Group - Gen 2
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Radical Firearms
Overview
The Radical Firearms 5.56/300 Blk Melonite AR-15 Bolt Carrier Group - Gen 2 is designed for reliable operation in 5.56 NATO caliber builds, featuring a robust M16 style bolt carrier that enhances cycling efficiency and stability. The nitride finish provides a durable surface that helps reduce friction and increase resistance to wear, making it a solid choice for builders seeking longevity in their components. This bolt carrier group is commonly found in mid-length gas system builds, pairing well with configurations that prioritize smooth operation and consistent performance.
Specifications
Radical Firearms 5.56/300 Black Melonite AR-15 Bolt Carrier Group - Gen 2
August 2026 on GunPartPicker
Radical Firearms 5.56/300 Black Melonite AR-15 Bolt Carrier Group - Gen 2 ranked #77 of the 229 bolt carrier groups builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #119 of the 442 bolt carrier groups builders have added. Builds with this bolt carrier group are nearly all chambered in 5.56 NATO, nearly all on mid-length gas, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today the one retailer we track has it in stock. Prices barely moved in August 2026, holding around $99.85, so there haven't been real sales lately. Buying today, the lowest price is $99.85 at Primary Arms, which matches the best price we saw in August.
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Frequently Built With
The part most often added in each category by the 11 builds that include this one
Radical Firearms Standard AR-15 Charging Handle
Radical Firearms 5.56 Socom Complete AR-15 Upper - Rpr M-LOK Handguard - 16"
Radical Firearms Complete AR-15 Lower Receiver With B5 Systems Stock & Grip
Fortis SHIFT Vertical Grip - M-LOK
SilencerCo Velos LBP 556 Rifle Suppressor, Black
Tacfire 1x30 Dual Illuminated Red Dot with Cantilever Mount - Black
Builds Featuring This Part
See all 1 →Builds in the community that include the Radical Firearms 5.56/300 Blk Melonite Ar-15 Bolt Carrier Group - Gen 2
| Build | Parts | Total |
|---|---|---|
 | 11 | $558.94 |
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