The First Factory Slim 3 Inch Outer Barrel Piece allows you to change the outer barrel to your preferred length while maintaining a clean and consistent look. This product is an outer barrel piece designed to match the slimmer outer barrel diameter of ?17.5 that is used in various overseas airsoft guns. It is slimmer than our ?Tokyo Marui M4 Outer Barrel Piece,? which matches the Tokyo Marui M4 series airsoft gun outer barrel diameter of ?19, ensuring a seamless fit when attached to overseas airsoft gun outer barrels and thus maintaining their appearance.

Each barrel piece features O-rings at the joints to prevent loosening. The high-precision, purely Japanese manufacturing achieves a tight clearance with the inner barrel even in its connecting structure. O-rings are also installed inside the outer barrel, firmly holding the inner barrel and improving accuracy.

The product contents include one outer barrel piece, one accuracy ring, which is a small O-ring, and one anti-loosening ring, which is a large O-ring. Its product specifications include a 14mm counter-clockwise thread, a male thread length of 13mm, and a female thread length of 14mm. It is compatible with airsoft guns that have 14mm counter-clockwise threads as well as our outer barrel base series.

Key Features

• First Factory Slim 3 Inch Outer Barrel Piece allows you to change the outer barrel to your preferred length.

• It is a slim type (?17.5) designed to match the outer barrel diameter of overseas airsoft guns.

• It is slimmer than our ?Tokyo Marui M4 Outer Barrel Piece,? which matches the Tokyo Marui M4 series outer barrel diameter of ?19.

• This ensures a seamless fit when attached to overseas airsoft gun outer barrels, helping maintain their appearance.

• Each barrel piece features O-rings at the joints to prevent loosening.

• High-precision, purely Japanese manufacturing achieves a tight clearance with the inner barrel even in its connecting structure.

• O-rings are also installed inside the outer barrel, firmly holding the inner barrel and improving accuracy.

• The package includes one outer barrel piece, one accuracy ring (small O-ring), and one anti-loosening ring (large O-ring).

• It uses a 14mm counter-clockwise thread, with a male thread length of 13mm and a female thread length of 14mm.

• It is compatible with airsoft guns that have 14mm counter-clockwise threads.

• It is also compatible with our outer barrel base series.