PDI 6.01mm SUS304 GBB Pistol Barrel (Various Models) Pistons & Piston Heads Compatibility – M4 airsoft guns:

Compatibility – M4 airsoft guns: Systema / KWA / GHK / G&P / VFC / Tokyo Marui (GBB only and requires adaptor ring)

Aircraft grade Aluminum CNC slide for hard kick blowback and high rate of fire

Removable Pad Inserts

1x LCT AK Upper Rail System (PK-213)

PDI 6.01mm SUS304 GBB Pistol Barrel (Various Models) Pistons & Piston Heads Compatibility – M4 airsoft guns: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