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Posted: 10/7/2011 3:29:17 PM EDT
| was shooting last weekend and noticed that the safety didnt want to switch to safe or was binding and very difficult to move to safe after firing when you manually cycle the charging handle the safety is free and moves easily but after firing its difficult any ideas? |
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Quoted:
was shooting last weekend and noticed that the safety didnt want to switch to safe or was binding and very difficult to move to safe after firing when you manually cycle the charging handle the safety is free and moves easily but after firing its difficult any ideas? What brand of rifle? If it is something that was not factory built, then what parts were used (lower receiver and lower parts kit)? The AR15 weapons system is designed so that the Hammer has to be cocked in order for the Safety Selector to be in the "Safe" position. If the Hammer is uncocked (forward so it is resting against the back of the firing pin), then the Safety Selector has to be in a "Fire" position and cannot be in the "Safe" position. The reasoning for this is that when the Safety Selector is in a "Fire" position, there is a machining relief cut that allows the back of the Trigger to come up into that space, and when the back of the Trigger goes up the front end goes down to release the Hammer from the Hammer/Trigger Sear engagement. If you rifle is not allowing you to put the Safety Selector into the "Safe" position after firing a shot, then the hammer is most likely forward and riding against the back of the firing pin, if this is what is occurring then is it happening when you are still pressing the trigger to the rear? If so then it sounds like a Disconnector problem, where it is not engaging or holding the Hammer to the rear. CY6 Greg Sullivan "Sully" SLR15 Rifles TheDefensiveEdge.com (763) 712-0123 |
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Quoted:
The safe position is only available with the weapon charged. (cocked) After it is fired, or if the hammer is down (uncocked) you should not be able to select safe. Im aware of that and at first i thought maybe the hammer wasnt caught by the trigger so i pulled the trigger and the weapon did fire just not sure what is different everytime i cycle by hand the safety works fine but when cycling by firing it causes the safety to bind will take it apart and look to see if anythings loose like a primer or something that may be binding it, have had the upper and lower seperated several times and didnt notice anything will pull the trigger group and safety and look closer. |
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Quoted: Quoted: The safe position is only available with the weapon charged. (cocked) After it is fired, or if the hammer is down (uncocked) you should not be able to select safe. Im aware of that and at first i thought maybe the hammer wasnt caught by the trigger so i pulled the trigger and the weapon did fire just not sure what is different everytime i cycle by hand the safety works fine but when cycling by firing it causes the safety to bind will take it apart and look to see if anythings loose like a primer or something that may be binding it, have had the upper and lower seperated several times and didnt notice anything will pull the trigger group and safety and look closer. Curious. Is the trigger resetting completely after you fire it? When you charge by hand the trigger has not been pulled. Could be sticking on reset, or a weak trigger spring and just resetting enough to engage the sear but still dragging on the safety. Try pushing the trigger forward after firing it to see if it is resetting completely. Check the sear notch on the bottom of the hammer to see if it is clear and not gummed up. also check the engaging surface on the trigger for the same. Check the tail of the disconnector to see if there is signs of it hitting the safety, may need to file the upper corner slightly to ensure it has clearance. Charge by hand then fire, keeping the trigger pulled back charge it again. Release the trigger to reset it. Does the safety move freely engage? If not can you push the trigger forward at all?  ETA cool FCG gif. |
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Quoted: Wouldn't this be obvious by the continued firing as the hammer followed the bolt forward (auto fire)? Am I missing something?Quoted: was shooting last weekend and noticed that the safety didnt want to switch to safe or was binding and very difficult to move to safe after firing when you manually cycle the charging handle the safety is free and moves easily but after firing its difficult any ideas? What brand of rifle? If it is something that was not factory built, then what parts were used (lower receiver and lower parts kit)? The AR15 weapons system is designed so that the Hammer has to be cocked in order for the Safety Selector to be in the "Safe" position. If the Hammer is uncocked (forward so it is resting against the back of the firing pin), then the Safety Selector has to be in a "Fire" position and cannot be in the "Safe" position. The reasoning for this is that when the Safety Selector is in a "Fire" position, there is a machining relief cut that allows the back of the Trigger to come up into that space, and when the back of the Trigger goes up the front end goes down to release the Hammer from the Hammer/Trigger Sear engagement. If you rifle is not allowing you to put the Safety Selector into the "Safe" position after firing a shot, then the hammer is most likely forward and riding against the back of the firing pin, if this is what is occurring then is it happening when you are still pressing the trigger to the rear? If so then it sounds like a Disconnector problem, where it is not engaging or holding the Hammer to the rear. CY6 Greg Sullivan "Sully" SLR15 Rifles TheDefensiveEdge.com (763) 712-0123 |
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Quoted:
Wouldn't this be obvious by the continued firing as the hammer followed the bolt forward (auto fire)? Am I missing something? If the hammer riding the back of the bolt carrier assembly as it travels forward, you could get several possible outcomes like a locked up action mid travel, light primer strike with no ignition, and primer ignition. CY6 Greg Sullivan "Sully" SLR15 Rifles TheDefensiveEdge.com (763) 712-0123 |
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