Firebolt V2 Details The original AR15 Firebolt was designed by 3D gun developer RollTroll. The Firebolt v2 takes all of the best parts of the original Firebolt, making this 3D-printed AR15 lower receiver more robust and durable. The Firebolt shines when it comes to assembly. Many 3D-printed AR15 variants are tricky and time-consuming when installing […]














