EMG F-1 Firearms Licensed BSF-19 Optics Ready Gas Blowback Airsoft Pistol Echo 1 Airsoft Guns This is the standard M4

This is the standard M4 length for use on AEGs

The AceTech Brighter R is the world's first patented design without switch

The G&G ARP556 CQB M4 AEG - Battleship Grey - Top Tech

20g high grade or heavier BB high grade BBs recommended

Works in all the 1911A1 and 1911 tactical models

EMG F-1 Firearms Licensed BSF-19 Optics Ready Gas Blowback Airsoft Pistol Echo 1 Airsoft Guns This is the standard M4DESCRIPTION: High quality replica fully licensed by F 1 Firearms Unlike similar pistols, the BSF 19 features both a metal slide AND frame! Deep engraved trademarks Specially designed slide cuts to reduce weight and assist with operation Spiral cut outer barrel offers lighter weight and a distinct look Optics ready design to accept RMR footprint red dot sights Extended style magazine makes reloads quick and easy Frame mounted rail allows for the