Precision barrels from PDI are very precise with high tolerances, which beats 99% of all precision barrels on the market. These are for serious tuners who want the most out of their guns.
Internal diameter is 6.01mm.
Made of stainless steel. We produced 01-inner barrel by using new technology of 05-inner barrel.
The tolerance is ±0.002mm
05 inner barrels are produced via Cold hammering (this tolerance is the highest quality in our industry).
Please pay attention for maintenance, and use quality BBs.
