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First Factory 4" Outer Barrel Base for TM M4A1 MWS GBBR

First Factory



First Factory 4" Outer Barrel Base for TM M4A1 MWS GBBR (Laylax AR/M4 SERIES Gas & CO2 Rifle Upgrade)

Upgrade your Tokyo Marui MWS Gas Blowback Rifle with the precision and craftsmanship of the First Factory 4" Outer Barrel Base from Laylax. With over 20 years of experience in the Airsoft industry, Airsoft Extreme proudly presents this top-notch aluminum construction upgrade part, designed to enhance your M4A1 MWS GBBR's performance and aesthetics. The First Factory Outer Barrel Base is a drop-in upgrade part for your Tokyo Marui M4A1 MWS Gas Blowback Rifle, made from durable aluminum with full metal construction. It allows easy adaptation of other outer barrels, giving you the flexibility to customize your rifle as you see fit. Not only does it provide a solid foundation for further modifications, but it also ensures precision and stability during your Airsoft battles. Installation is straightforward, and you can easily swap out the stock outer barrel base by removing the handguard of your M4A1. However, for optimal results, we recommend consulting a technician for assistance. As fellow Airsoft enthusiasts, we understand the importance of getting every detail right, and that's why we're committed to offering only the best products from trusted manufacturers like Laylax. Equip your Tokyo Marui M4A1 MWS GBBR with the First Factory 4" Outer Barrel Base and experience a whole new level of performance and versatility in your Airsoft games.


  • Compatible with Tokyo Marui MWS Gas Blowback Rifles
  • Precision-crafted aluminum construction
  • Drop-in upgrade part for easy installation
  • Enables the adaption of other outer barrels for customization
  • Full metal construction ensures durability and stability


Length: 100mm
Weight: 64 grams
Material: Aluminum
Compatibility: Tokyo Marui M4A1 MWS GBBR
Platform: Gas & CO2
Color: Black
Brand: First Factory (Laylax)
Replica Type: RIFLE
Net Weight: 0.06 kg

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