Does anyone know if this requires a 'special' type of o-ring (it is not the traditional black synthetic o-ring found in common applications) or if I can just substitute a regular o-ring. I have cleared the barrel, but discovered that he stripped the o-ring on the co2 screw cap, so all the co2 leaks out when you puncture. I finally asked him to return the airgun when he admitted he the above and said was just going to throw the gun away!! He jammed a pellet in the barrel, panicked, did not tell me, then tried to 'fix' the problem by firing more pellets (no, I could not even make this up!). 22 rimfire with a reputation for incredible accuracy.I had an almost mint 790 that I loaned to a neighbor for squirrel control. These guns are look alikes to the S&W model 41 with long barrel. Either some or all of the Powerline 41's wereĪ hangy tank from Mac 1 airguns for the Crosman Mk I works great on these guns (but not on the 41). The last version Daisy sold was the Powerline 41 that was a step down in build quality from the 780/790. The bad trigger pulls of the Daisy guns is probably why there is little interest. The horrible non-adjustable trigger made it too hard to shoot accurately, and I traded it off. I purchased a 79G some years back that was like new in the box. Unlike the Crosman Mk I/II, the 78 is thin enough to be carried in a holster, and it accompanied me on many fishing trips over the years.

It is very accurate, and I am able to shoot it very well from an unsupported offhand position. I consider it to be one of the best air pistols ever made. I purchased a 78G with adjustable trigger brand new in the early 70's and still own it. I am writing an article on the decline of the design, and am looking for other owners impressions of them. Is there just not much interest in them here, or is it just noone post their experiences with them. I don't see much in the daisy gate about the 780's and 790's. I have recently resealed a few of the Daisy & S&W pistols for people, and see a progression of the way the 2 companies changed for safety, and then cheapened the design over the years. The differences in the Daisy and Smith are mostly internal with a few external ones. It has an atrocious trigger, and a 2 part pot metal hammer, (the S&W used a 1 piece metal hammer.) but man is it accurate, from a rest, with open sights, it will put 5 shots well under a dime at 10 meters. Then i came into a Daisy 790, with a 3 digit serial number, Like new in the box with all paperwork and hang tag. Only the early models with the adjustable triggers and 2 power levels of cocking. So, I have been into the crosman Mark 1 & 2 pistols for years, then got into the Smith & Wesson 78 & 79 pistols.

Daisy powerline 790 manual