First Factory Rail Stock Base - Black

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  • Buffer Tube Base
  • Compatible with Picatinny
  • Compatible with Various Airsoft M4 / AR-15 Style Restorable Stocks & Buffer Tubes

The First Factory Rail Stock Base can be attached to the First Factory (Laylax) Picatinny rear stock base series or airsoft models equipped with a Picatinny rail on the stock base, such as the SIG Sauer Proforce MCX and MPX electric airsoft guns by VFC (licensed by SIG AIR). By combining it with various airsoft M4 / AR-15-compatible retractable stocks, you can customize the look to your preference. This stock base securely holds the buffer tube to the gun and will give you a stable shooting form.

*Please note that the stock and buffer tube is not included. If you are looking for a buffer tube, it is compatible with LayLax "Rail Stock Pipe Adapter Light." *Depending on the type of buffer tube you use, there may be some gaps that require fitment, or some modification may be required during installation. *The length of the fixing screw (M5 0.8) may vary depending on the type of stock pipe used. The fixing screw is NOT included and must be prepared. Please refer to the diagram below for the correct dimension. (Screw should not stick out, longer than 5mm from the end face of the stock buffer tube) If it is too long, it needs to be cut.

Check out more Airsoft Accessories 


  • Airsoft Guns with Picatinny Stock Base
  • LayLax "Rail Stock Pipe Adapter Light."
  • First Factory M4 AEG Buffer Tube


  • x1 First Factory Rail Stock Base - Black

Installation Video:


BrandFirst Factory (Laylax)
Originating ArmoryARMALITE
Replica TypeRIFLE
Net Weight (kg)0.04
Length (mm)30.0
Content Included

First Factory Rail Stock Base - Black

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