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Posted: 9/6/2015 6:08:31 PM EDT
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I have a very early A2 grey upper with a rebated front lug and I want to build a clone XM4 or 727.
What lower would be more appropriate, an A1 profile or an A2 profile lower? |
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Quoted:
I have a very early A2 grey upper with a rebated front lug and I want to build a clone XM4 or 727. What lower would be more appropriate, an A1 profile or an A2 profile lower? When I got ready to build my 727, I was wondering the same thing. It seems like most of the Model 727s had A1 lowers. I used this as a reference for mine. 
The 727/XM4 was sort of a transitional model (pre-dating the M4) that was very similar to the late Model 723. The main difference being the upper receivers. 
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Quoted:
When I got ready to build my 727, I was wondering the same thing. It seems like most of the Model 727s had A1 lowers. I used this as a reference for mine. <a href="http://s100.photobucket.com/user/jamesrea_2006/media/Weapons%202014/Retro%20ARs/015_zpsgdatmjkg.jpg.html" target="_blank">http://i100.photobucket.com/albums/m8/jamesrea_2006/Weapons%202014/Retro%20ARs/015_zpsgdatmjkg.jpg</a> <a href="http://s100.photobucket.com/user/jamesrea_2006/media/Weapons%202014/Retro%20ARs/017_zpsq55q4rao.jpg.html" target="_blank">http://i100.photobucket.com/albums/m8/jamesrea_2006/Weapons%202014/Retro%20ARs/017_zpsq55q4rao.jpg</a> The 727/XM4 was sort of a transitional model (pre-dating the M4) that was very similar to the late Model 723. The main difference being the upper receivers. <a href="http://s100.photobucket.com/user/jamesrea_2006/media/Weapons%202014/Retro%20ARs/007_zpsvmuzcvwo.jpg.html" target="_blank">http://i100.photobucket.com/albums/m8/jamesrea_2006/Weapons%202014/Retro%20ARs/007_zpsvmuzcvwo.jpg</a> <a href="http://s100.photobucket.com/user/jamesrea_2006/media/Weapons%202014/Retro%20ARs/010_zpszs6fwuut.jpg.html" target="_blank">http://i100.photobucket.com/albums/m8/jamesrea_2006/Weapons%202014/Retro%20ARs/010_zpszs6fwuut.jpg</a> Quoted:
Quoted:
I have a very early A2 grey upper with a rebated front lug and I want to build a clone XM4 or 727. What lower would be more appropriate, an A1 profile or an A2 profile lower? When I got ready to build my 727, I was wondering the same thing. It seems like most of the Model 727s had A1 lowers. I used this as a reference for mine. <a href="http://s100.photobucket.com/user/jamesrea_2006/media/Weapons%202014/Retro%20ARs/015_zpsgdatmjkg.jpg.html" target="_blank">http://i100.photobucket.com/albums/m8/jamesrea_2006/Weapons%202014/Retro%20ARs/015_zpsgdatmjkg.jpg</a> <a href="http://s100.photobucket.com/user/jamesrea_2006/media/Weapons%202014/Retro%20ARs/017_zpsq55q4rao.jpg.html" target="_blank">http://i100.photobucket.com/albums/m8/jamesrea_2006/Weapons%202014/Retro%20ARs/017_zpsq55q4rao.jpg</a> The 727/XM4 was sort of a transitional model (pre-dating the M4) that was very similar to the late Model 723. The main difference being the upper receivers. <a href="http://s100.photobucket.com/user/jamesrea_2006/media/Weapons%202014/Retro%20ARs/007_zpsvmuzcvwo.jpg.html" target="_blank">http://i100.photobucket.com/albums/m8/jamesrea_2006/Weapons%202014/Retro%20ARs/007_zpsvmuzcvwo.jpg</a> <a href="http://s100.photobucket.com/user/jamesrea_2006/media/Weapons%202014/Retro%20ARs/010_zpszs6fwuut.jpg.html" target="_blank">http://i100.photobucket.com/albums/m8/jamesrea_2006/Weapons%202014/Retro%20ARs/010_zpszs6fwuut.jpg</a> Awesome!! That means I have all the parts except a flash hider and peal washer. This build will be done very soon.  Thanks for the help.
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