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Unfilled Nylon Co-polymer
Very abrasion resistant and non abrasive, will not leave abrasive powder around the spring guide area. - Very lower friction
- Increases FPS ( 5 to 15 fps per ring )
Inner & Outer Diameter :
- 10.2mm & 15.0 mm ±0.1mm (for 10mm spring guide)
- 10.7mm & 15.0 mm ±0.1mm (for 10.5mm spring guide)
- 11.2mm & 15.0 mm ±0.1mm (for 11mm spring guide)
- Krytac Spring guides =10.7mm
10.7mm spring guide will fit perfectly with minor sanding of the internal seam
PLEASE measure your spring guide to be certain of the correct sizing