- RECOMMENDED TO beUSED ONLY WITH ADD ON SILENCER
- Deep Fire Airsoft AEG Precision Barrel for SG551 M4 M15 with Suppressor
- 407mm Length Stainless Steel Tightbore Upgrade Barrel
- Additional 45m Barrel Length for extended barrel with suppressor
- 6.04mm Precision Inner Airsoft Rifle Barrel
- Perfect for tighter grouping & more accurate shooting
- Increases FPS for Higher Velocity
- If you use the gun without the silencer suppressor then this inner barrel will protrude