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Posted: 7/24/2013 6:12:42 PM EST
Cycles very smoothly with the hammer cocked, but release the hammer and I cannot cycle it. It's like the charging handle is locked. Anyone have any idea what's going on?
Link Posted: 7/24/2013 7:35:15 PM EST
[#1]
Take off the upper and try pulling the charging handle to see if it has any binding. If so, remove the bcg and try just the handle. Check the bcg and gas area for any wear spots like it's binding.

If the upper is free moving, then check the hammer and trigger mechanism. Check your binding or difficult movement.
Link Posted: 7/24/2013 7:44:02 PM EST
[#2]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Take off the upper and try pulling the charging handle to see if it has any binding. If so, remove the bcg and try just the handle. Check the bcg and gas area for any wear spots like it's binding.

If the upper is free moving, then check the hammer and trigger mechanism. Check your binding or difficult movement.
View Quote


Nope upper cycles fine, cycles fine when the hammer is cocked, cycles fine when it's 1/4 cocked....the only way I can't get it to cycle is when the hammer is fully released.....and it's VERY locked up at that point. Need to break it down and manually reset the hammer.
Link Posted: 7/24/2013 10:51:32 PM EST
[#3]
Sounds as the hammer is the only thing that's causing the problem. I would take it the trigger group and reinstall. Check that springs ate in the right orientation.
Link Posted: 7/25/2013 3:05:37 AM EST
[#4]
What style hammer do you have?  Is your bolt ramped?
Link Posted: 7/25/2013 5:21:56 AM EST
[#5]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
What style hammer do you have?  Is your bolt ramped?
View Quote

Bingo.
Link Posted: 7/25/2013 5:24:34 AM EST
[#6]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
What style hammer do you have?  Is your bolt ramped?
View Quote



Now that you mention it, I have a CMMG bolt (ramped) with a 9mm hammer. I think Im going to put in a standard hammer and see if that fixes it.
Link Posted: 7/25/2013 12:57:24 PM EST
[#7]
Discussion ForumsJump to Quoted PostQuote History
Quoted:



Now that you mention it, I have a CMMG bolt (ramped) with a 9mm hammer. I think Im going to put in a standard hammer and see if that fixes it.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Quoted:
What style hammer do you have?  Is your bolt ramped?



Now that you mention it, I have a CMMG bolt (ramped) with a 9mm hammer. I think Im going to put in a standard hammer and see if that fixes it.

A ramped bolt and a "9mm hammer" don't play well together.  Put a standard, rounded (not notched!) hammer in and you'll be good to go.
Link Posted: 7/25/2013 2:58:44 PM EST
[#8]
Discussion ForumsJump to Quoted PostQuote History
Quoted:

A ramped bolt and a "9mm hammer" don't play well together.  Put a standard, rounded (not notched!) hammer in and you'll be good to go.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Quoted:
Quoted:
What style hammer do you have?  Is your bolt ramped?



Now that you mention it, I have a CMMG bolt (ramped) with a 9mm hammer. I think Im going to put in a standard hammer and see if that fixes it.

A ramped bolt and a "9mm hammer" don't play well together.  Put a standard, rounded (not notched!) hammer in and you'll be good to go.


Yup problem solved. Thanks!
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