Prometheus Stainless Hard Cylinder (Type A: Non-Ported) BBs & Loaders Slightly angled for better ergonomics

Slightly angled for better ergonomics and look

Precocking with spring release feature

but also CNC machine a wide variety of AR15 components

Especially the Upper Receiver can fitted standard scope claw mount which are Hensoldt Scope with STANAG claw mount and Low profile claw mount

Prometheus Stainless Hard Cylinder (Type A: Non-Ported) BBs & Loaders Slightly angled for better ergonomicsUsing stainless which have high hardness and high durability, and the surface having a heat sink for radiating heat which occurred at compression. It makes reducing an accelerating resistance caused by thermal expansion of Piston O ring. Also, they have variation for maintain air volume for various barrel size, and improving the stability of ability.