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Crosman 338 barrel extendtion mod

Started by Septicdeath, January 04, 2022, 01:30:13 PM

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Septicdeath

The model 338 is a BB caliber semi automatic.The 338 is a replica of the Walther P38 military pistol. Produced 1987-1991

Velocity tested at around 363 fps.

.177 BB
CO2 12 gram
Semi-Auto 2.5 inch smoothbore barrel.
20 Shot Magazine
gun tested at 363 fps

The 338 pistol I modified is the same pistol which I extended the barrel to 5.5 inches. The seals also replaced.

Velocity tested at around 393 fps

177 BB
CO2 12 gram
Semi-Auto 5.5 inch smoothbore barrel.
20 Shot Magazine
gun tested at 393 fps, https://youtu.be/sJy1RnDvbJA