Internal barrel and external barrel extension T4E TR.68

Tuning internal barrel and external barrel extension T4E TR68 STEEL with thread and 2 adapters. It can withstand a power of 40J and more.

Parameters / Improvement

• Extreme fit tolerances,
• Increased accuracy,
• Thread shock absorber including reinforced spring,
• Anti-twist protection,
• Thread cover included,
• Increased performance with additional modification
• Very high durability
• Plug and play, installation in 5 minutes.