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Posted: 2/21/2005 3:56:24 PM EDT
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Ok Colt and LMT have them. Who else offers both Receivers & barrel extensions with the correct M4 ramps? I'v seen the CMT upper receiver with the cuts. Do they have a 1/7 4150 chrome lined BBL with the extended ramps as well? I have also seen NickDrak's post about the RRA he received with the so called upgrade. Not quite what I am looking for. So is it still only Colt or LMT. If one wants a 4150 chrome lined BBL with M4 feed ramps? |
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Armalite. All Armalite rifles are equipped with M4 extensions, so I would assume that their barrels bought separately would also. An email may be in order, but I asked them via email and was told that all of their rifles have the M4 extensions, including the AR10 line. ETA: Their barrels are 4140, though. And CMMG is supposed to be supplying 4150 barrels with the M4 extension, soon, if not already. |
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What I realy want is a CMT M4 cut upper. To fit on my Stag lower. To keep it all CMT. So in order to get a chrome lined 1/7 4150 BBL. With M4 cuts in a M4 cut receiver. Is to build one. Is this my only option? Surely Stag builds this upper Right? What do they use on their complete 15-L's? edit to add 1/7 |
I believe they use 16" Chrome Lined 1/9 twist |
Oh great, I have yet to finish my 16", and now I'm going to be tempted into registering my lower as a SBR and getting an 11.5" upper 
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