AR Sponsor
Posted: 9/17/2007 6:21:25 PM EDT
|
I have decided on an EOtech sight for my new RRA rifle and I am having a tough time figuring out what the differences are between the various models. Near as I can tell the only difference seems to be those models compatible with night vision and the size battery the sight uses. Can someone educate me on the differences? Thanks, DD |
|
511 - N batteries, not NV compatible 512 - AA battteries, not NV compatible 551 - N batteries, NV compatible 552 - AA batteries, NV compatible 553 - CR123 batteries, NV compatible, also has a Quick Release mount which elevates the sight to give you a lower 1/3 cowitness. I would recommend a 512... |
Nicely summarized, jjk. To answer the OP's question go with the 512 or if you may go to NV in the foreseeable future go with the 552. The battery availability of the AA's over the N cells or cr123 makes life so much easier. You can raid TV remotes, kids toys, and mini maglites for AA's. You will have to take down a seasoned citizen and steal their hearing aid to find N cells in the wild. |
| The battery life of the AA models using lithium batteries are the same as the ones using the CR123 batteries per the specs (1100 hours), which are easily available in bulk since they are the same battery used in the Surefire tactical lights (cheaper than buying AA lithium). Carrying one battery type (CR123) verses two certainly makes sense to me (assuming you're attaching a light). Therefore I have the 553 which is the military version (comes with ARMS flip release). It is also shorter than the AA styles, which makes it easier to fit onto a "crowed" flat top (depending on what else you're using). It is more expensive, so buy what better suits your needs. |
+1 . . . unless you really need a shorter sight, different batteries, or NVG compatibility. |
+ another one |
|
I'm in the same position as Dogduster and have a few specific questions that I'm hoping you all can answer. If you buy a 512, with a normal (DPMS) flattop, is there still enough space behind it to mount back-up iron sights? Can you still get to the 512's controls if the BUIS is folded? If you have the 512 (vs. the higher 553) is there enough space for you to see over the BUIS when they're folded? Thanks, Mark |
|
There should be enough room for a BUIS on a standard flatop with a 512. I don't have one on the shelf right now and my two demo rifles currently sport Aimpoint but there should be enough room. Woth regards the controls if you have a BUIS. If you have a reasonably low profile folding BUIS than you should have no problem. Some of the fixed ones may get in the way more. A MAD sight would be no problem for example. Chad |
Yes, for sure. I have a 512 on an A3 upper. Behind it is a YH flip up BUIS  |
| As is obvious from currahee's post, it will fit even if it is "tight" and I have used mine that way on my Bushy. However, IMO for better FOV it should be mounted further forward, which isn't possible with that model unless you have a rail up front. Not to imply that it won't work as is. |
It's a matter of preference. I like to have the optic closer to my eyes and I like to have as much weight as possible over the center of gravity of the rifle. More stable and faster handling. I could move it forward three or four more possitions on the rail, but I wouldn't be able to take the handguards off. As for "tight" I do have to use two fingers to turn it off (for those who don't own one you turn it off by hitting both buttons at once) which has the pro of less chance of accidently hitting it and the con of being a bit ungainly. |
AR Sponsor