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Posted: 11/24/2007 7:37:35 AM EDT
| Hey guys, been searching to find this. My father has a Colt AR-15 lower and a bushmaster upper. But he is wanting to purchase a colt upper to make the rifle a full colt. We have found numerous colt upper kits but different models. Will any of those models fit on the HBAR AR-15? I figured they would, but wanted to make sure. I'm going to look up the upper kit model number and see if it tells me which lowers it will fit, but can't find anything yet. Thanks. |
| Its hard to say from the description you have given. If I am correct, your father has a Bushmaster upper on his Colt lower now? If that is the case, does the front push pin on the lower have any sort of adapter to make the Bushmaster work, or does the front push pin more or less come in and out the same way as the rear one? |
Plus 1# |
| The front push pin your referring to is something I call a pivot pin. It is like a screw that goes through the upper that is pivots on and connects to the lower. But yes I guess you could call it a push pin but it has a screw top on it and maybe a threaded end. There is no sort of adapter that I can tell. |
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I believe you are right, I believe the front pin is in fact called the pivot pin. Based on your description, you have the standard size pin, but it is a screw instead of a pin. That is not uncommon for a Colt. If so, you can buy whatever Colt upper you like, but make sure it has the standard mil-spec front lug. Some Colt lower had a larger diameter front pivot pin. There were Colt uppers that had a larger front lug to fit these larger front pivot pins. These are the ones you will want to avoid. |
| Thanks for the heads up man. I do really appreciate it. Now, with that, I'm a newbie when it comes to AR-15's and assualt rifles, but I am loving it right now. Where can I go to find all the info I need to purchase my first AR-15? I know this place is great, but where are the website can I find the differences in the models, flat top carbines, etc? Just need a good place to read up on all of this. I want to purchase a custom AR-15 if I can, already customized. I want to know the different in the heavy barrell's, advantages of the longer and shorter barrells, all of that. Unless you can tell me? And what the best to purchase right now. Thanks guys. |
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Sadly there is no easy answer to all of that. Stick around here, read some of the threads that are tacked to the top of this and the other technical forums. Look at some of the picture threads to see examples of what you are reading about. and narrow down what you think you want based on what you see and read. The biggest problem with figuring out what you want in your AR is the unbelievable amount of choices you have. Its both a blessing and a curse! In a nutshell, here's what I often suggest to someone just starting out: Get the flat top. There's nothing a fixed sight gun can do that a flat top cant. But there is a lot more a flat top can do a fixed sight gun cant. Stick to a 16" barrel. Nothing wrong with longer or shorter for that matter, but a good 16" barrel is as capable and modular as I can think of. Avoid the heavy barrel. It offers almost nothing except extra weight. There are times where that weight might be helpful, but in general, a mid weight barrel is a much better option. Get an adjustable stock. Fixed stocks are fixed and do not offer the ability to change the length if need be. Get a chrome lined barrel. Other barrels might be better for specific purposes, but the chrome lining will increase barrel life and help prevent against corrosion. If I can think of anything else I will post it. |
| Do you suggest any of the new models like the 6920? Please remember I am a newbie and I hope there aren't any stupid questions. If your prefer, I can PM you and ask the questions. Is the 6920 a flat top? As I said, I'm assuming your meaning to fixed sight on the gun. I have been looking at some of the 6920 but I am going to post an ad on here to see if I can find a customized AR-15. Thanks bud. |
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The Colt 6920 is arguably the best production AR15 a person can currently buy. It is an excellent gun which I could easily recommend. It is a flat top (the 6920 is only available as a flat top). No Colt model, however, comes customized. They are available only in the standard configuration. I don't think that is a problem, because most of the accessories you may want are easily installed by the user. The one exception would be a rail and there are many people and places who will gladly put whatever rails you like on. If you think you want a customized gun, I would suggest looking into the Noveske N4 or the Noveske Recon. |
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