PDI

6.01mm diameter inner barrels leave so little space between the BB and the barrel that you really need to pay attention to the ammo you use. A tighter gap between BB and barrel does make a better...

This is the very same chamber packing that comes with the new PDI hop-up chamber. Just in case you do not wish to experiment with the new hop-up unit itself, you can just use the chamber packing on...

Improve your groupings and upgrade your power slightly with this 6.01 mm tightbore barrel from PDI. This inner barrel is stainless steel (SUS304) and has an external diameter of 10 mm. We...

Improve your groupings and upgrade your power slightly with this 6.01 mm tightbore barrel from PDI. This inner barrel is stainless steel (SUS304) and has an external diameter of 10 mm. We...

Stainless steel made precision inner barrel for Systema PTW Airsoft Rifle Series. Internal diameter 6.01mm, which increases the shooting precision and power due to the tight bore. You can increase...

Stainless steel made precision inner barrel for Tokyo Marui FN5-7 GBB Airsoft Pistol. Internal diameter 6.01mm, which increases the shooting precision and power due to the tight bore. You can...

PDI Palsonite releases a 6.01mm inner barrel for the P226, with an error margin of a mere 0.002mm per barrel.

PDI Palsonite releases a 6.01mm inner barrel for the Hi-CAPA 5.1, M1911A1, MEU, with an error margin of a mere 0.002mm per barrel.

PDI 04 Inner Barrel (509mm) for Systema PTW. Made of SUS 304 (precision stainless steel) Inner Dia. 6.04mm / Outer Dia. 10mm Tolerance +/- 0.002mm as same as PDI 01 barrel For stock chamber

PDI 04 Inner Barrel (374mm) for Systema PTW. Made of SUS 304 (precision stainless steel) Inner Dia. 6.04mm / Outer Dia. 10mm Tolerance +/- 0.002mm as same as PDI 01 barrel For stock chamber

This is a 9mm Spring Guide for APS-2, TYPE96, M24 (PDI & Classic Army). It is made of stainless steel.

PDI 01 6.01mm Precison Barrel for Marui VSR-10 (303mm)

PDI 01 6.01mm Precison Barrel for Marui VSR-10 (430mm)

PDI 01 6.01mm Precision Inner Barrel (229mm) for PDI-Patriot1/Marui MP5

PDI 01 6.01mm Precision Inner Barrel (247mm) for Marui G36C/P90 AEG

PDI 01 6.01mm Precision Inner Barrel (285mm) for Marui MC51 (G3 Shorty)

PDI 01 6.01mm Precision Inner Barrel (375mm) for Marui M4A1 AEG

PDI 01 6.01mm Precision Inner Barrel (455mm) for Marui AK-47

PDI 01 6.01mm Precision Inner Barrel (509mm) for Marui M16A1/AUG

PDI 01 6.01mm Precision Inner Barrel (650mm) for Marui PSG-1

PDI precision inner barrel, made from stainless steel and cold hammered. The outer diameter is 8mm, the internal being 6.01mm. Gives a more precise, accurate shot. This barrel is for the Marui VSR-10...

Made of Duralmin. Must use with products below: PDI Front Bull Barrel L for Marui VSR10 - (PDI-ACC-VSR10LBRL) or PDI Front Bull Barrel L FLUTE for Marui VSR10 - (PDI-ACC-VSR10LBRL-FLT) PDI...

Stainless steel made precision inner barrel for Tokyo Marui MP7A1 AEP Airsoft SMG. Internal diameter 6.01mm, which increases the shooting precision and power due to the tight bore. You can increase...

Stainless made precision inner barrel for Marui G18C AEP. Internal diameter 6.01mm, increases the shooting precision.

Stainless steel made precision inner barrel for Tokyo Marui Glock 17 / Glock 18C / P226 GBB Airsoft Pistol. Internal diameter 6.01mm, which increases the shooting precision and power due to the tight...

Reinforced 2nd sear for the VSR10 is capable of supporting high power upgrades

Use these barrel spacers to ensure that you inner barrel is correctly supported in a straight line for powerful and accurate shots.

Reinforced set pin for the VSR10 is capable of supporting high power upgrades. The set pin is the piece that holds the piston back while the rifle is cocked.

Winter type replacement piston for the Marui Hi-Capa 5.1 / 4.3 /Marui 1911 ensures a good blowback cylinder seal even in cold weather

Specially designed piston head for better seal and blowback kick in cold weather.

Upgrade spring for AEG, PDI makes the best springs in the business! Note that for this spring rate, you will need to upgrade to better gears. We recommend SYSTEMA!Please check AEG Spring Comparison...