Laylax Prometheus EG Barrel For SIG AIR MCX Virtus SBR 295 mm
 
●Inner bore width of φ6.03mm with a ±0.01mm tolerance!
●Solid BB stability and accuracy, made with enhanced stainless steel (SUS) material!
●Outer diameter compatibility between 8.6mm〜9.2mm
●Expanded HOP window for a variety of HOP nubs and tensioners