First Factory Rail Stock Base Umarex 1 GBB Rifle (ZET System/

1 GBB Rifle (ZET System/ Cerakote Coating)

Design For Open KAC RAS Barrel Nut & R-15 Barrel Nut

7003 Aluminum Slide & Stainless Steel Outer barrel

)/1 Scale High Power Assembled Airsoft Electric Gun AEG Rifle

First Factory Rail Stock Base Umarex 1 GBB Rifle (ZET System/The First Factory Rail Stock Base is designed to be compatible with the First Factory (Laylax) Picatinny rear stock base series, as well as airsoft models equipped with a Picatinny rail on the stock base. Notable examples include the SIG Sauer Proforce MCX and MPX electric airsoft guns manufactured by VFC (licensed by SIG AIR). This versatile accessory allows for customization by combining it with various airsoft M4 AR 15 compatible retractable