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3/21/2014 4:28:17 PM EDT
Bcm a4 20" with a2 stock.  Bolt is locked ino the open position.  I smacked the butt of the stock on the ground and the bolt slammed home.  I think it's normal, but I don't remember my carbine doing that
3/21/2014 4:35:10 PM EDT
[#1]
Normal. They all do it.
3/21/2014 4:38:01 PM EDT
[#2]
I've only had one that didn't
3/21/2014 4:49:03 PM EDT
[#3]
Normal
3/21/2014 4:50:50 PM EDT
[#4]
I've got a Colt 6920(my only current AR), it's only ever done with with the bolt locked back, magazine removed. The notch on your magazine (assuming it's empty and in the weapon) prevents this from happening by holding the bot catch up as it should normally function. I haven't actually tried slamming the bolt home via butt stock with a loaded magazine, but IIRC, it wont happen so you should have nothing to worry about, but then again I'm not 100% sure.
3/21/2014 5:01:01 PM EDT
[#5]
I had an A2 on the Island that did that. I've experienced it quite a bit. Not at all uncommon.
3/21/2014 5:09:27 PM EDT
[#6]
Very normal.
3/21/2014 5:14:39 PM EDT
[#7]
The pressure of the bolt on the bolt catch is what keeps the bolt catch 'up' against the spring tension of the spring and detent. Remove the pressure of the bolt, the bolt catch spring forces the bolt catch back 'down' and nothing is left to hold the bolt back.

It's not just normal, it's in the design.

Unless I misunderstood what you explained you did.
3/22/2014 3:10:23 AM EDT
[#8]
Quote History
Quoted:
The pressure of the bolt on the bolt catch is what keeps the bolt catch 'up' against the spring tension of the spring and detent. Remove the pressure of the bolt, the bolt catch spring forces the bolt catch back 'down' and nothing is left to hold the bolt back.

It's not just normal, it's in the design.

Unless I misunderstood what you explained you did.
View Quote



Here's your answer. There's no detent, indent, hole, etc. to engage. Spring tension is the only connection.
3/22/2014 5:18:44 AM EDT
[#9]
It's the same as taking a pistol with the slide locked back and tugging the slide to the rear and releasing it.

It will go forward into battery.

Same thing.
3/22/2014 6:43:27 AM EDT
[#10]
If i put a loaded mag in with the bolt locked back, I can smack the butt stock and cause it to load the first round off the mag into the chamber
3/22/2014 7:35:19 AM EDT
[#11]
Still normal.  The follower is what engages the slide stop, and that is still way below the slide stop.
3/22/2014 4:13:30 PM EDT
[#12]
Quote History
Quoted:
If i put a loaded mag in with the bolt locked back, I can smack the butt stock and cause it to load the first round off the mag into the chamber
View Quote


Do you own a semi-automatic pistol?

If so, lock the slide back.

Insert a loaded mag.

Tug the slide to the rear and let it go.

Does it fly forward and chamber a round?

The same thing is happening on your AR.

Smacking the butt stock on the ground is causing the bolt to move to the rear at which point it is no longer locked back so it travels forward under spring pressure to chamber a round.

Are you really not getting this, or are you trolling us?????

3/22/2014 4:27:52 PM EDT
[#13]
Inertia


It's the law!
3/22/2014 4:28:22 PM EDT
[#14]
Double tap
3/22/2014 4:28:36 PM EDT
[#15]
Triple tap
3/23/2014 9:03:50 AM EDT
[#16]
Quote History
Quoted:


Do you own a semi-automatic pistol?

If so, lock the slide back.

Insert a loaded mag.

Tug the slide to the rear and let it go.

Does it fly forward and chamber a round?

The same thing is happening on your AR.

Smacking the butt stock on the ground is causing the bolt to move to the rear at which point it is no longer locked back so it travels forward under spring pressure to chamber a round.

Are you really not getting this, or are you trolling us?????

View Quote View All Quotes
View All Quotes
Quote History
Quoted:
Quoted:
If i put a loaded mag in with the bolt locked back, I can smack the butt stock and cause it to load the first round off the mag into the chamber


Do you own a semi-automatic pistol?

If so, lock the slide back.

Insert a loaded mag.

Tug the slide to the rear and let it go.

Does it fly forward and chamber a round?

The same thing is happening on your AR.

Smacking the butt stock on the ground is causing the bolt to move to the rear at which point it is no longer locked back so it travels forward under spring pressure to chamber a round.

Are you really not getting this, or are you trolling us?????




No trolling sir, just making sure its normal. I always thought a locked bolt was as far back to the rear as possible but I never really thought about it because when u pull it back wi the charging handle it does move back even further.  Just making sure my action spring isn't too weak or somthing
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