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AR15.COM
2/22/2008 10:59:41 AM EDT
A friend of mine and I had a conversation yesterday about Double Action Only.  He belives if you hit a Condition 1 (magizine inserted, round in chamber, slide forward), or "Hot" for all you Rangers, Glock 17 hard enough that the weapon will discharge.  I told him this is not going to happen because they are Double Action Only and the firing pin isn't "primed" therefore, cannot drop and fire.  He insisted he was right.  Can someone give me some proof so I can shove it in his face please.  Cheers.
2/22/2008 12:32:19 PM EDT
[#1]
The striker on a Glock (firing pin) rests at about a 1/3 cock position in the condition you specify. In order for the weapon to fire, the striker must be drawn back to the full cocfk poition and the firing pin block 'cleared'. What many assume to be 'taking up slack' in the first part of the Glock trigger pull does, in fact do this, while the second, more resistant part, releases the striker. Theoretically, at least, the pistol cannot fire from the 'at rest' striker position unless the trigger is activated.
2/23/2008 12:45:21 AM EDT
[#2]
Really, your missing the bigger picture.

Until the trigger is pulled all the way back, the striker slide block is preventing the striker from going all the way forward.

The middle hump on the transfer bar is the section that pushes up on the striker block to disengage it, and this does not happen until the trigger is drawn all most all the way back.

You could have the striker retained/stuck all the way back and fly forward, but until you disengage the striker block via trigger pull, the striker is never going to reach the primer!!!
2/23/2008 12:50:55 AM EDT
[#3]
Really, you missing the bigger picture.

Until the trigger is pulled all the way back, the striker slide block is preventing the striker from going all the way forward.

The middle hump on the transfer bar is the section that pushes up on the striker block to disengage it, and this does not happen until the trigger is drawn all most all the way back.

You could have the striker retained/stuck all the way back and fly forward, but until you disengage the striker block via trigger pull, the striker is never going to reach the primer!!!

To prove your point, pull the slide on a pistol, stick a primed only case on the breach face, pull the striker all the way back and let it fly.  The striker will not reach the primer.
Note: the striker is going to mar the block a bit, so you don't want to do this more than a time or two.