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AR15.COM
6/26/2005 10:49:18 AM EDT
How are the Springfield Mil-spec front sights put on? They say staked on but what exactly does that mean? Wondering if it's as crappy a job as GLock's front sight.
6/26/2005 10:56:06 AM EDT
[#1]
Staking is like a rivet.  Put the sight post through a hole in the slide, and beat the crap out of it with a hammer till it mushrooms,


6/26/2005 11:43:44 AM EDT
[#2]
Do they tend to stay on when they're set? Anyone have problems with them falling off?
6/26/2005 12:00:16 PM EDT
[#3]
They take a beating, more than likely it will be peened over from abuse vs falling off. The US&S I had eons ago was like this when I was issued it, I had to take a file and square it up so I could get a decent picture.

Mark
6/27/2005 1:44:08 PM EDT
[#4]

Quoted:
Do they tend to stay on when they're set? Anyone have problems with them falling off?



They stay on when they are staked correctly.   I've had a few go flying over the years, but when they're done right they don't go anywhere.   A dovetail is a better way to go any day of the week.
6/27/2005 7:33:23 PM EDT
[#5]
Yeah, mine came off after 250 rounds or so.  Sent it back to Geneseo and got it back two weeks later.  Shipping refund a couple of days after that.  
6/28/2005 3:54:08 AM EDT
[#6]

Quoted:
Yeah, mine came off after 250 rounds or so.  Sent it back to Geneseo and got it back two weeks later.  Shipping refund a couple of days after that.  


With the tiny GI blade, staking is considered permanent...it's been that way from the start.
With larger mass sights, the staking method is not as sure, the larger tenons help, but some still fail or come loose.
As Ken stated, dovetailed is the hot setup, with brazing or twin rivets also being used for more durability.