View Full Version : Front sight 70 NM

May 19, 2009, 11:47 AM
I have a Colt MK IV/70 series NM. The front sight has come lose and I'd like to replace it. Any leads to getting one?

May 19, 2009, 12:54 PM
I've had that problem building hard ball guns for the AK NG Pistol Teams.

Milliet made front sights with two rivit points and sold a Duel-Crimp instulation tool to crimp them in.

The way it works, you drill two holes in the slide, a v-cutting tool cuts a V on the underside of the slide, then the sight is crimped in. I'm never had a front sight come off with this method.

The tool here is kind of pricy if you have one gun. I am no longer in the Gun smith business, and WILL NOT take mail order buisness, but if one is close, and drops by with the sight and Millet Sight, I'll put in on at no charge. The Gooberment paid for my training and tools, you paid once (in your taxes) so I refuse to go into the commerical business.

Anyway, here's the tool.


May 23, 2009, 11:49 AM
You can also just remove the sight and replace it with one of the correct tenon size. My 70 Series Gold Cups have narrow tenons. I use the Brownell's staking tool.

May 24, 2009, 04:31 PM
Thanks for the reply. I'll look into that idea. I was shooting hotter loads through it and I think that knocked it loose.

May 25, 2009, 09:51 AM
When I stake 1911 front sights, I degrease the slide and sight thoroughly and use either 640 Loctite (sleeve retainer) or 271 (red) Loctite.