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7/24/2009 10:22:34 AM EDT
What is the difference between single or double hook triggers?  Which is better?

Thank you for your help.
7/24/2009 10:48:23 AM EDT
[#1]
The single hook has one hook that engages the hammer, the double has two hooks.

There is really no difference between the two, the later Soviet rifles used single hook triggers.  A double hook is usually no more smooth than a single, and sometimes are slightly rougher.
After making millions of double hook rifles, the Soviets changed to the single and made MANY millions more.  There have been no problems with either.

Which you can use depends on the receiver you intend to install it in.
If your receiver has one slot projecting forward from the trigger opening, it requires a single.  If the receiver trigger hole has two short slots you can use either.
If you file another slot, you can modify the receiver to use a double hook.

Bottom line, it's not really important, both work equally well, and there are no real advantages to either.
7/24/2009 11:33:17 AM EDT
[#2]
Quoted:
The single hook has one hook that engages the hammer, the double has two hooks.

There is really no difference between the two, the later Soviet rifles used single hook triggers.  A double hook is usually no more smooth than a single, and sometimes are slightly rougher.
After making millions of double hook rifles, the Soviets changed to the single and made MANY millions more.  There have been no problems with either.

Which you can use depends on the receiver you intend to install it in.
If your receiver has one slot projecting forward from the trigger opening, it requires a single.  If the receiver trigger hole has two short slots you can use either.
If you file another slot, you can modify the receiver to use a double hook.

Bottom line, it's not really important, both work equally well, and there are no real advantages to either.


Thank you,

Appreciate the response.
7/24/2009 1:20:57 PM EDT
[#3]
My understanding is that the single hook trigger was developed so that the rate reducer would clear the trigger.
7/24/2009 8:23:58 PM EDT
[#4]
Somebody should make this topic a sticky since it surfaces at least EVERY WEEK
7/24/2009 8:29:10 PM EDT
[#5]
I've got single hook, Tapco G2's in my two Romy G's. Excellent triggers. Like butter.
7/30/2009 4:51:09 PM EDT
[#6]
point - there is a single hook/claw, a double hook/claw, and a TAPCO single hook/claw.

The regular single hook has a different release angle and different geometry.

The tapco single hook is a double hook with one hook cut off.  

This is useful if you want to avoid cutting the clearance hole for the second hook in your receiver, and arguably there will be less friction resulting in a lighter/smoother pull than a double.

But it should not be confused with an original single hook as it still retains the AK double hook geometry.

An original double hook has the sear spring recess centered, an original single hook has the spring recess offset to the left (for the anti-bounce device on its right)
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