My New 1911 has a loose rear sight.

[bernie]

I just bought a new Colt 1911 and while shooting it, the rear sight started drifting over. I could push it out with my fingers. I am going to put tritium sights on it so I am not overly concerned, unless the dovetail for the sight is oversized. The base of the rear sight is .322". Is the sight undersized most likely or the dovetail oversized. Thanks.

 

[MaterDei]

How can that be???

I thought that the pony guns were the only true 1911 and that all of their quality issues (this being a very common one) were behind them.

Oops, guess not.

 

[MaterDei]

btw, bernie, I'm sorry for being absolutely no help at all. I just couldn't resist.

 

[DnPRK]

The solution is to stipple the underside of the sight. The edges of each stipple spot is raised and will cause the sight to fit snugly in the dovetail.

 

[Standing Wolf]

My first pre-agreement Smith & Wesson model 41's rear sight kept falling out, and when I tightened the set screw, it bent the rib downward so it abraded the top of the slide.

The folks who make Lock Tight make a thick black glue. A very little bit of it secured the rear sight, and has proved impervious to cleaning solvents for the past five years or so.