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Posted: 12/22/2008 4:05:10 PM EDT
| I remember people posting that Pmags tend to not drop free in a certain brand of lower, but can't remember which brand. Anybody know? |
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Many PMags have problems with many different lowers.
Some of the tighter lowers include a certain batch of RRA and I believe either Superior or Essential lowers. Also lots of POF. But it is not really a lower issue. Magpul has now officially sanctioned sanding down the two ribs on the rear to alleviate this issue. |
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"But it is not really a lower issue."
Actually, many times it is. Unless you have an actual Colt or FN M16/M4 your 'mil-spec' lower was reversed engineered. Colt rarely releases the TDP on their receivers and as such most all other brands vary in their dimensions. There are many different ways to create a magwell too such as machining, broaching, and wire EDM and these can also have an effect on how a magazine will drop free. We individually gauge each and every PMAG that leaves the warehouse to be able to drop from an M16/M4 but some receivers simply have tighter dimensions than that. In fact, in order to make for a more 'precision fitting' lower, many manufacturers' make their lowers ever tighter and tighter over time. Why will a USGI alloy mag drop and sometimes the PMAG will not? Well, that's mostly because of our improved design. Few people question the robustness of the PMAG as well as its smooth feeding characteristics (due in part to the constant-curve internal geometry). These features, however, require as much room as we can get out of an M16/M4 magwell, including the proper USGI chamfer at the entrance. With all that being said, we are constantly improving upon our design and manufacturing processes (as well as increasing capacity) to refine an already successful and military proven magazine fielded by the hundreds of thousands all around the world. Oh, the two raised pads on the rear of the PMAG were added to take up slack in the looser magwells- they can therefore make tighter magwells a bit more finicky... Justin Beard Tech Support / Customer Service |
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