MigraineMan
Defenestration Specialist
My son and I took apart my trusty old 760. I got it second-hand as a yoot, and I shot the bejezus out of it. It has many problems. I will take credit for the damage to the foregrip. It suffered a stress fracture at the forward roll pin, and I attempted to epoxy the pieces together. I was probably 12 at the time, and hadn't developed much discipline yet.
It's clear that the previous owner had been inside this thing. The BB retainer button and spring have always been missing. The damage to the stock at the rifle interface has always been there ... I remember fussing my thumb across the edges. And it appears that the contents of the pressure chamber are assembled improperly. According to the factory prints, the white nylon element should go in first with the taper forward, then the aluminum spacer. Finally, the gasket between the air chamber and the barrel breech is made of vacuum line. There should be an o-ring and a metal breech gasket sleeve in there.
Based on the necessary replacement parts, it's cheaper to go buy a new 760 from Walmart for $37.
It's clear that the previous owner had been inside this thing. The BB retainer button and spring have always been missing. The damage to the stock at the rifle interface has always been there ... I remember fussing my thumb across the edges. And it appears that the contents of the pressure chamber are assembled improperly. According to the factory prints, the white nylon element should go in first with the taper forward, then the aluminum spacer. Finally, the gasket between the air chamber and the barrel breech is made of vacuum line. There should be an o-ring and a metal breech gasket sleeve in there.
Based on the necessary replacement parts, it's cheaper to go buy a new 760 from Walmart for $37.
