Okay how exactly is an AR bolt cycled?

AR-15 » AR Discussions

AR Sponsor:

Site Notices

2024's Favorite CCW? | PSA Micro Dagger

[ARCHIVED THREAD] - Okay how exactly is an AR bolt cycled?

Posted: 12/27/2005 6:57:30 PM EDT

Is it the pressure in front of the bullet that begins to cycle the bolt and carrier or is it the gasses behind the bullet? Or both. I would think its the gasses behind the bullet because thats obviously why you have carbon buildup. I am just wondering and want to be 100% sure without telling someone something I dont really know.

Posted: 12/27/2005 7:20:50 PM EDT

[#1]

Quoted:
Is it the pressure in front of the bullet that begins to cycle the bolt and carrier or is it the gasses behind the bullet? Or both. I would think its the gasses behind the bullet because thats obviously why you have carbon buildup. I am just wondering and want to be 100% sure without telling someone something I dont really know.

Hmmmmm...............

When gas operated firearms are designed, they are designed so that propellant gas pressure cycles the action at a certain pressure or time. If not, you would have a unpredictable result.

Posted: 12/27/2005 7:39:09 PM EDT

[#2]

All gas operated firearms are designed to cycled based on pressure created by the burning propellant. Said propellant burns behind the bullet.

Posted: 12/27/2005 7:59:00 PM EDT

[#3]

But if you plugged the barrel in front of the gas port with say the bullet from a squib load, then you fired another shell, the pressure generated between the two bullets could go down the gas hole and start to cycle the bolt carrier.

Posted: 12/27/2005 8:01:54 PM EDT

[#4]

Quoted:
But if you plugged the barrel in front of the gas port with say the bullet from a squib load, then you fired another shell, the pressure generated between the two bullets could go down the gas hole and start to cycle the bolt carrier.

I'd say worrying about whether the action is being cycled by powder burning or air would be the least of your worries.

Posted: 12/27/2005 10:42:17 PM EDT

[#5]

Dace, it's always good to want to know how things really work ....

Posted: 12/28/2005 12:09:54 AM EDT

[#6]

squeeze bang and blow

sorta like a motor but without the suck

Posted: 12/28/2005 12:37:02 AM EDT

[#7]

It's the propellant gasses.

[ARCHIVED THREAD] - Okay how exactly is an AR bolt cycled?

AR-15 » AR Discussions

AR Sponsor:

Win a FREE Membership!

Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!

You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.

Warning

Confirm Action

About AR15.COM

Stay Connected

Newsletter

Contact Us