Alpha Nitride .224 Valkyrie / 6.8 SPC BCG
- Carrier: Machined from 8620 steel & QPQ nitride/melonite treated.
- Improved carrier geometry with M16 profile.
- The QPQ nitride/melonite treatment hardends the surface to 70 RC and reduces friction, adding corrosion resistance inside and out.
- Bolt: 9310 & QPQ nitride/melonite treated
- Shot peened precision ground diameters.
- Magnetic particle inspected and laser marked.
- Extractor machined from 4140 hardned steel.
- Gas key: Machined from billet 4140 with grade fasteners and staked to mil spec.
- Chrome plated firing pin per mil spec.
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