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Old October 3rd, 2017, 04:35 PM #21
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He's half right. Without a firing pin it won't fire full auto, or semi-auto or single shot either.
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Old October 3rd, 2017, 05:02 PM #22
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A full auto firing pin - this is the best laugh I had all day. Thanks for the laugh. This is so false it hurts.
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Old October 3rd, 2017, 06:11 PM #23
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Quote:
Originally Posted by teratos View Post
You have to file down the firing pin to make it full auto.....
Yeah, but no more than 3% or you will ruin it.
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Old October 3rd, 2017, 07:09 PM #24
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There is some truth behind the tale.

The M16 Firing Pin has a larger flange on it than an AR15 Firing Pin.

Some unshrouded AR15 Bolt Carriers could only accept the small flange AR15 Firing Pins. I have a Bolt Carrier that will only accept small flange AR15 Firing Pins.

Back in the day before there were readily available AR parts you had a limited selection of spare parts, so people often would file down the flange on surplus M16 Firing Pins fit in their AR15.

The modification did not make the gun full auto.

The small flange AR15 Firing Pins do reduce mass and lower the chance of a slam fire with soft primers.

The unshrouded Carriers and Notched Hammers were manufactured to prevent people from removing the Disconnector form the gun which can result in DANGEROUS hammer following/slam fires.
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Old October 4th, 2017, 10:32 AM #25
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Just to review for myself one mo' time :

Certian Bolt Carriers have different ID. Typically shrouded vs unshrouded , but it's a big world with lots of small machine shops, so off the wall combos are possible.

Other than flange dia , the firing pins are substantially similar, and function the same .


Somthing like the above ?
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Old October 4th, 2017, 05:10 PM #26
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I like the Black rifle groups on FB that say, "drop an auto sear in and it is full auto" I bailed on that group today.
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Old October 4th, 2017, 05:12 PM #27
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Ok question 2:

If you modify (correctly) an AR15 to full auto, would it still be an "AR15" OR an M16?
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Old October 4th, 2017, 06:54 PM #28
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Quote:
Originally Posted by teratos View Post
You have to file down the firing pin to make it full auto.....
Also - don't forget to remove the firing pin retaining pin!
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Old October 5th, 2017, 01:52 PM #29
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Quote:
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Ok question 2:

If you modify (correctly) an AR15 to full auto, would it still be an "AR15" OR an M16?
If you put a Civic type R motor in to an LS and swap the suspension, is it a Civic type R or an LS?
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Old October 12th, 2017, 12:26 PM #30
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Just tell them it is already full auto. Because AR stands for Automatic Rifle.

yes, but would love to see their faces.

Even my kids know what AR stands for.......
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Old October 12th, 2017, 09:42 PM #31
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Funny thing. I bought a 7.62x39 BCA AR 15. Never went full auto, but had a couple light primer strikes. So, I bought a longer, enhance firing pin, still no. Did I not have the shorter pin set properly for full auto mode? I used a Clarkston 7500 Fizzbopulator to check the cam timing and ripe peach to test firing pin protrusion.
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Old October 12th, 2017, 09:44 PM #32
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Quote:
Originally Posted by mark71211 View Post
Not up on these kinds of things but a left wing nut is saying on FB that it's easy to make a AR full auto by just getting one of these. True or not?
Your first clue it was false, "left wing".


   
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