Prometheus 6.03mm EG Inner Barrel for AEG - 229mm Sniper Pistons This is not for regular

This is not for regular AEGs (G2 models only)

Objective diameter 50 mm

100 Decibel Sound – Whistle can be heard up to 1 mile away

Note there are different variants of this gearbox for MP5s

Prometheus 6.03mm EG Inner Barrel for AEG - 229mm Sniper Pistons This is not for regularInner bore width of 6. 03mm with a 0. 01mm tolerance. MP5A4, A5, SD5, SD6, Spetsnaz. Solid BB stability and accuracy, made with enhanced stainless steel (SUS). Inner barrel bore width of 6. 03mm with a tolerance of 0. 01mm, made of stainless steel for superior strength necessary to maintain accuracy without the need for special coatings. The barrel is arguably the heart of any airsoft gun and determines various performance factors such as velocity