Prometheus 6.03mm EG Inner Barrel for AEG - 229mm Sniper Pistons It is mounted on lower

It is mounted on lower rail handguard by 4 screws and receiver by 1 screw

25-Year Warranty

And at long last

Objective diameter 50 mm

Prometheus 6.03mm EG Inner Barrel for AEG - 229mm Sniper Pistons It is mounted on lowerInner 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