[ARCHIVED THREAD] - help id my upper

Posted: 10/26/2010 4:40:59 PM EDT

http://i890.photobucket.com/albums/ac103/braceyourself/DSC02651.jpg
i picked up the upper w bc. at a gunshow for $275 the barrel is marked FNMI MP 1/7 5.55 NATO the bolt is marked mp the lower i made from a 0%forging from dsa

Posted: 10/26/2010 4:46:55 PM EDT

[#1]

You have a later no-forge 603 upper with round forging that was rebarreled at some point with an FN A2 barrel.

Check out the 603 Upper Guide to get an idea on the year of manufacture for your 603 upper.

ETA: Your upper is Colt, BTW. Notice the proof markings forward of the ejection port.

Posted: 10/26/2010 5:19:09 PM EDT

[#2]

thanks for the info. i had a m4 style ar didnt like it so i set out to build a 20" standard ar now i see all the rage about the retro style ar my next build is going old school .

Posted: 10/26/2010 5:39:53 PM EDT

[#3]

you did the lower from a 0% forging? man that is some talent would have never known from the looks.Not me anyway

Posted: 10/26/2010 6:48:12 PM EDT

[#4]

thanks i have a cnc mill ,of all my gun builds the ar takes a lot of machine work if some one ever crys about spending $125. for a ar lower it took me about 5 hours to mill one out . not worth the time to build your own but to say you made it is worth it.

Posted: 10/26/2010 9:38:22 PM EDT

[#5]

Nice job on the lower. Some retro parts installed also. Upper has been identified, should be late 60's vintage with a newer FN Govt profile barrel. Rifle should handle and shoot real well. If it has a triangle cap at the FSB you could easilly install a set of triangle handguards.

Posted: 10/27/2010 12:32:46 AM EDT

[#6]

I'm gonna go with the upper being a late XM16E1 receiver (Is the front lug counter bored on the left side?), & the barrel is a armorer installed replacement for the original A1 profile barrel.

Upper receiver is Colt, barrel is FN.

[ARCHIVED THREAD] - help id my upper

AR Sponsor

Warning

Confirm Action

[ARCHIVED THREAD] - help id my upper

[ARCHIVED THREAD] - help id my upper