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Posted: 3/3/2013 1:58:48 PM EDT
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Hi All-
Brand new to the forum...........seems like a great place to be. Question for you............I have a late 80's-early 90's Colt AR-15 Sporter 2............the front takedown is a bolt, rather than a push pin..........is that common,,,,,,,,,,does it make a difference or signify anything important in the model transition???? Thanks for your help |
| I doubt it came that way. Hopefully it didn't destroy the hole on the lower but you should try to replace it so you don't need tools to take it apart. Parts . You'll need a pivot pin, spring and detent. All together it'll probably cost 8-10 dollars shipped. |
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I doubt it came that way. Hopefully it didn't destroy the hole on the lower but you should try to replace it so you don't need tools to take it apart. Parts . You'll need a pivot pin, spring and detent. All together it'll probably cost 8-10 dollars shipped. Not necessarily. The model the OP has could large pin, small pin without the reinforcing for the front takedown pin or divot, it could could have it but it isn't drilled, or it could be drilled. Don't you just love the transitional blue label Colts? Post pics of what you have OP! |
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I doubt it came that way. Hopefully it didn't destroy the hole on the lower but you should try to replace it so you don't need tools to take it apart. Parts . You'll need a pivot pin, spring and detent. All together it'll probably cost 8-10 dollars shipped. Dude, Colt's were built this way for YEARS. It started in the 70's and continued until the late 90's. This was before any bans were even thought of. |
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I doubt it came that way. Hopefully it didn't destroy the hole on the lower but you should try to replace it so you don't need tools to take it apart. Parts . You'll need a pivot pin, spring and detent. All together it'll probably cost 8-10 dollars shipped. Dude, Colt's were built this way for YEARS. It started in the 70's and continued until the late 90's. This was before any bans were even thought of. This. |
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The other side would have been more helpful but that does look like a large pivot colt to me. I have a R6600 at home in the gunsafe that is very much like yours. Great gun and I wouldn't mess with it if I were you. The only big issue you will find with this gun is finding a large pivot flattop upper receiver is difficult and when you do find one they tend to be expensive. With that said, Colt made a few factory large pivot A3 guns (R6700 model) and Armalite made large pivot A3 upper receivers for a few years. In addition, Danniel Defense in more recent years has made them too but they are still a pain to find!
So, if you want to make it into a flattop, I suggest you just buy a second lower or gun. You can find large pivot A1 and A2 receivers pretty easily so it isn't hard to build a second upper with the built in carry handle. Congrats on a nice gun and that looks like a keeper to me. |
| There isn't any doubt that this is a large pivot Colt rifle, but I'm not sure it's all original. That is an A1 upper on an A2 marked lower. Looks like at some time the upper has been changed. You can put a standard small pin type upper on it with an adapter. No big deal at all. Actually Colt used to include the adapters with new uppers. |
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Bought it brand new,from a big time gun shop, way back when (late 80's, prior to the first California Ban in '89). Its original and has never been touched. I was just curious because everything in the last 20 years has the push pin front takedown. I was going to post this earlier that during this transitional period Colt put together a lot of very unusual combinations to use up their left over parts. There was a time I tried to make sense out of it but I have long since give up on figuring out what Colt was doing. I have very little reason to not believe that your gun shipped with an AR-15A2 marked lower with an A1 upper! |
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Colt threw a lot of mix and match parts together back in the 80s.
http://i1164.photobucket.com/albums/q564/sdakotaredman/pix342919911_zps9afe1448.jpg http://i1164.photobucket.com/albums/q564/sdakotaredman/pix233405221_zps3b5e262e.jpg |
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In Colt parlance, AR15A2 did not mean the upper and lower were M16A2 pattern. It only meant the rifles incorporated some of the A2 improvements introduced on the M16A2 (such as the government profile barrel and closed-bottom FH) while still using SP1-type receivers. A2-style receivers didn't start showing up on civilian rifles until later, and were phased in over a number of years.
OP, nice rifle. Be aware that the conversion pin used to adapt your lower to a small-pivot-pin upper can sometimes rotate and cause binding. There have been instances of receivers being damaged (sometimes severely) by the binding. The conversion pin that Colt provided with their replacement uppers was intended to be used with the later-production large-hole A2 lowers, which, due to the addition of the "fence", prevented the adaptor from rotating. If you want to change to a flattop upper, the best option is to find a large-hole upper (not an easy task), or just get another rifle, as has already been suggested. |
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In Colt parlance, AR15A2 did not mean the upper and lower were M16A2 pattern. It only meant the rifles incorporated some of the A2 improvements introduced on the M16A2 (such as the government profile barrel and closed-bottom FH) while still using SP1-type receivers. A2-style receivers didn't start showing up on civilian rifles until later, and were phased in over a number of years. Depends on what you consider "M16A2 pattern." 
Remember, the C7 and RO723s were in the "M16A2 Family," but still had the field sights as well. IIRC, all AR15A-2s were "M16A2 pattern" per Colt, A2 grips, 1/7 barrels, ect. they just used whatever random uppers they had available. 
~Augee |
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Quoted:
In Colt parlance, AR15A2 did not mean the upper and lower were M16A2 pattern. It only meant the rifles incorporated some of the A2 improvements introduced on the M16A2 (such as the government profile barrel and closed-bottom FH) while still using SP1-type receivers. A2-style receivers didn't start showing up on civilian rifles until later, and were phased in over a number of years. Depends on what you consider "M16A2 pattern."
Remember, the C7 and RO723s were in the "M16A2 Family," but still had the field sights as well. IIRC, all AR15A-2s were "M16A2 pattern" per Colt, A2 grips, 1/7 barrels, ect. they just used whatever random uppers they had available.
~Augee Well, I'll never be mistaken for an expert on the matter, but I did live through that period as an avid Colt owner. I'll stand by my previous post as being generally accurate. 
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