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Old April 14th, 2018, 08:15 AM #1
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Improving the Take Down Pins

In a time of trying to improve on an already great design (AR), has any major companied come up with an improved locking mechanism for the upper and lower receivers with the added improvement of making the take down process or mating process much faster?

Obv this would lead to a proprietary design but I feel that when quickly trying to assemble an upper and lower receiver, the take down pins leave much to be desired..
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Old April 14th, 2018, 08:24 AM #2
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I do not speculate most people find any issue to improve. After the pins are used a few times, I've always been able to push it first far enough with thumb, then pull it w/o any issue. I do the rear pin first when dissembling.
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Old April 14th, 2018, 08:24 AM #3
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If you search, you will find that there have been a number of different types of take down and pivot pins made over the years. The important thing to remember is that you don't want them coming out by themselves.
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Old April 14th, 2018, 08:31 AM #4
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Quote:
Originally Posted by aklax11 View Post
the take down pins leave much to be desired..
I must be missing something here. What is it that you do not like?
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Old April 14th, 2018, 08:31 AM #5
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I've tried many different TD pins and I've decided these are the best out there. I've used them on my last three builds.

https://www.strikeindustries.com/sho...r-ul-eptp.html
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Old April 14th, 2018, 09:00 AM #6
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IDK, seems pretty darn fast to me. I could do it with my eyes closed, how much faster do you want?

OTOH, a proprietary design for the pins would mean its not interchangeable with a Colt AR15.
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Old April 14th, 2018, 09:01 AM #7
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There's a few around that have larger heads. I can see the usefulness of them, but I've never bothered.
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Old April 14th, 2018, 09:42 AM #8
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Does OP mean improved Pins for existing system , or new system ? We have long passed the point of backwards compatibility being of absolute priority.

The despised Colt large pin uppers were actually stronger, and we saw how they were accepted .
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Old April 14th, 2018, 10:10 AM #9
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Any military rifle that requires pushing two pins, separating an upper from a lower, reattaching an upper to a lower, and all done in less than thirty seconds clearly needs redesigning.
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Old April 14th, 2018, 10:36 AM #10
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Not sure what is wrong with them. Can you explain the issue a little more?
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