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Posted: 3/8/2012 1:14:10 PM EDT
| Is there such a thing as a M4 lower?j |
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Quoted:
Is there such a thing as a M4 lower?j There is. There is a Colt marked M4 with select fire AUTO and select fire BURST. I believe that the BURST config was US and the AUTO was export. I think that there are some FN's marked M16A4 with selcect fire BURST. Could be that Colt owns "M4" Maybe a Colt historian could chime in. |
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Quoted:
I think that there are some FN's marked M16A4 with selcect fire BURST. Could be that Colt owns "M4" Maybe a Colt historian could chime in. M16A4 is an actual classificaton, not an FN misnomer for an M4. FWIW, the M16A4 is flat-top 20" rifle with SAFE-SEMI-BURST. It has a rifle barrel extension and rifle upper without the deeper M4 feedramps, and the A2 style "government profile" barrel. The actual M16A3 is a fixed carry handle rifle exactly like the M16A2 with AUTO instead of BURST. "AR-15A3" meaning a flat-top semi rifle, exists only as some commercial model designations, which incorrectly anticipated what the military would end up calling the M16A3 and M16A4. Current production M4 carbines are produced with receivers rollmarked with some variant of the "M4" designation, though they differ from the M16 lowers in no physical way other than their markings. |
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