[ARCHIVED THREAD] - Difference Between Automatic and semi automatic ?

Posted: 8/7/2011 6:49:25 PM EDT

What parts are different to make a gun fire automatic ? Just something ive always wanted to ask .

Posted: 8/7/2011 6:52:21 PM EDT

[#1]

Sear,selector lever, disconnector and bolt carrier.

Posted: 8/7/2011 6:55:42 PM EDT

[#2]

Quoted:
Sear,selector lever, disconnector and bolt carrier.

Aren't there full auto firing pins as well?

Posted: 8/7/2011 6:59:56 PM EDT

[#3]

- hammer
- trigger
- disconnector
- auto-sear
- bolt carrier
- selector
- lower receiver (3rd hole and milled away section for autosear)

Posted: 8/7/2011 7:02:19 PM EDT

[#4]

Quoted:

Quoted:
Sear,selector lever, disconnector and bolt carrier.

Aren't there full auto firing pins as well?

Sort of, but firing pins are interchangeable. AR's used to use a firing pin with a wider collar at the head to catch the notched hammer in case of a disconnector failure that may result in doubling/auto fire in an AR15. Since most bolt carriers are shrouded nowadays, it makes no difference. It would be nice if the companies that produce fire control groups would ditch the notch for compatibility with rimfire kits.

Posted: 8/7/2011 7:26:43 PM EDT

[#5]

Thanks

Posted: 8/7/2011 8:23:33 PM EDT

[#6]

Hammer,trigger,disonector,safety,Auto Sear,Bolt Carrier,and the lower it has to be a low shelf and walls toward the rear of the receiver thinner than on a semi auto lower to fit an auto sear.

Posted: 8/7/2011 8:39:48 PM EDT

[#7]

Whhhaaaaaaaaa????

[ARCHIVED THREAD] - Difference Between Automatic and semi automatic ?

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[ARCHIVED THREAD] - Difference Between Automatic and semi automatic ?

[ARCHIVED THREAD] - Difference Between Automatic and semi automatic ?