Thread: Zero Trigger
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Old November 17th, 2009, 21:08   #6
Amos
 
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Join Date: Aug 2006
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The PDI sears are different from their V-trigger.

The V-trigger holds the piston at a perfect angle to the cylinder head until it's released whereas the zero trigger mis-aligns the piston and makes working the bolt more difficult.

If your brother is Stephen, Then tell him to just go all PDI and suck up the costs.

Edit:

The PDI cylinders you linked, one of them is for the cylinder alone, one of them is for the cylinder set that includes all the upgraded internals for it it aswell (Minus the spring)
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