GBB AR or M4 barrel extension
grabcad
Designed specifically for gas blowback airsoft, this product is intended exclusively for use in airsoft guns.
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With this file you will be able to print GBB AR or M4 barrel extension with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on GBB AR or M4 barrel extension.