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Posted: 11/10/2009 6:47:03 PM EDT
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Where can i get a flattop slab-side upper with standard height rail? I already know about the DPMS lo-pro.
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Your best bet is to get a 9mm flattop upper and modify the upper by adding the hole for the gas tube and the inlet for the bolt cam pin. Get the stripped upper and add a standard port door assembly. +1, the last six 9mm uppers I received from Rock River has the cam pin cut. PursuitSS |
Heres a Model 1 Sales 9mm upper that I drilled the gas tube hole drilled in. Accepts the normal, full-sized eject port door. Makes for a nice clean, lighter weight installation by eliminating the useless FA and shell deflector. Complies with M4 rail height specs.
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How did you get the deflector off and what did you have to drill? You can buy the 9mm receiver stripped: 
As Harlan mentioned, to use as a 5.56 receiver you'll need to make sure the cam pin rotation area is milled out: 
I think most will be - the one pictured came from Model 1 and is reportedly of Stag manufacture. You'll also need a hole drilled for the gas tube: 
ADCO's done a couple for me - $30 IIRC. Works just fine as a DI receiver: 
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How did you get the deflector off and what did you have to drill? You can buy the 9mm receiver stripped: http://i150.photobucket.com/albums/s95/MMcfpd/9mm_upper_01-1.jpg As Harlan mentioned, to use with as a 5.56 receiver you'll need to make sure the cam pin rotation area is milled out: http://i150.photobucket.com/albums/s95/MMcfpd/9mm_upper_02-1.jpg I think most will be - the one pictured came from Model 1 and is reportedly of Stag manufacture. You'll also need a hole drilled for the gas tube: http://i150.photobucket.com/albums/s95/MMcfpd/9mm_upper_03b-1.jpg ADCO's done a couple for me - $30 IIRC. Works just fine as a DI receiver: http://i150.photobucket.com/albums/s95/MMcfpd/9mm_upper.jpg Those look great. They would probably make great .22 uppers, too. |
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Works just fine as a DI receiver: What do you mean? Is it as strong as a .223/5.56 receiver? Please elaborate.. Yes, the upper is okay to use in an .223/5.56 caliber assembly. The converted 9mm receiver has the same dimensions as a standard A3 upper but without the housing for the forward assist and without the shell deflector. A similar upper design with a carry handle can be seen in the A1 upper. |
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