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  • This is a necessary part when changing to a new handguard or rail for Marui M4 series GBBR.
  • The original Barrel Lock was easily damaged by even a weak impact.
  • The GSI Outer Barrel Lock made of STEEL eliminates the damage issue.
  • It is made of steel, so it can be fixed firmly when changing the handguard


• EAN & SKU for Gold:  8809899600085, SKU: BN20-MM4G

•Product Dimension & Weight:1.13(L)x0.1.13(W)x0.39(H) inch 0.4 oz

•Package Weight & Dimension:  4.3(L)x 3.3(W) x 0.4(H), 0.5oz 

• Made in Korea,



Outer Barrel Steel Lock for MARUI M4 GBB Series

$11.90 Regular Price
$9.52Sale Price
Excluding Sales Tax
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