Action Army 6.03mm AEG Barrel 250mm Echo 1 Airsoft Guns It's a very high quality

It's a very high quality metal made chamber with all the parts to make it work better than your original

The hop up is fully adjustable with a side lever switch near the front handguard

use the V2 ETU unit

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The Elite Force Tactical 1911 Gas Blowback in Stainless Silver color

Action Army 6.03mm AEG Barrel 250mm Echo 1 Airsoft Guns It's a very high qualityThe Action Army 6. 03mm AEG Barrel 250mm. Fits inside AEGs that require this length. This is a 6. 03 inner barrel diameter, so it allows for less jams and tolerances than the 6. 01mm. A very popular choice as an alternative to the Prometheus. One piece high grade metal machined. Precision smooth inner bore with nickel plating. This inner barrel is an upgrade to improve your gun's performance, accuracy, FPS, and range compared to stock gun barrels.