WINCHESTER Daisy M14 SEMI CO2 700 FPS Air Rifle. 177 BB Gun Pellet Made in Japan

  

Original owner, lightly used despite being released to market 10 years ago. Last year when I changed the Co2 cylinders it vented the gas. I contacted the manufacture and got a detailed pdf schematic (happy to share pdf with winner) and tried to repair it myself. I replaced the Co2 cylinder seal and the Oring that fits over the brass post that feeds the gas into the bb gun. It still vented gas with the new parts and decided to just call it quits and just bought a new bb gun to enjoy.

I assume the problem lies within the co2 housing because when it was leaking gas, I removed the co2 housing and it kept leaking, and the rifle itself has no issues to the best of my knowledge. Please refer to the picture diagrams with my notes. Guarantee my diagnosis is correct but assume that the circled area is where the issue lies.

When it was working never had an issue with jams with bb's and had good accuracy. The plastic body is in excellent shape with minor blemishes on the plastic mock muzzle where it rested against the wall.

There is some paint that can be cleaned off the plastic muzzle. Comes with the original box, printed manual, the original used seals and two extra's for free (see pictures), the M14 BB gun, Co2 housing (mock magazine), dual 8 round bb magazine stick, co2 twisting knobs.