I recently crunched some numbers on this issue primarily for Aimpoint Sights and then only those for military/LE applications that may need Aimpoint Sights for NVD use, thus only CompM series and not CompML series. Retail on CompML series are often $60 less than CompM. Also, these prices are Man Sugg Retail prices, thus higher than what many dealers are selling them. Example is that many dealers are selling the CompM4 for $700 and LaRue Tactical sells CompML2s with their LT-150 Mount for $480. However, to keep things Apples to Apples I used only Manufacturer Suggested Retail prices for CompM series.
CompM4 - $780 w/ Integral QRP II Mount, 2 MOA AA battery 80,000 hours
CompM3 - $556 w/o mount, 2 or 4 MOA dot 1/3N Lithium 50,000 hours
- $660 w/ QRP Mount @ $104
- $675 w/ LaRue Tactical 150 Mount @ $115
- $709 w/ ARMS Mount @ $153
- $721 w/ GG&G Mount @ $165
CompM2 - $490 w/o mount, 4 MOA dot 1/3N Lithium 20,000 hours
- $594 w/ QRP Mount @ $104
- $605 w/ LaRue Tactical 150 Mount @ $115
- $643 w/ ARMS Mount @ $153
- $655 w/ GG&G Mount @ $165
Micro T-1 - $650 w/ Integral Mount, 4 MOA dot CR2032 Lithium 50,000 hours (will require a riser mount for AR/M-4 use - LaRue Tactical and GG&G will be selling them shortly. Do not know the cost at this time.)
Life Cycle Costs
Also, some thing that also needs to be considered when purchasing an optic is durability, reliability, and life cycle costs. As P.R. says “buy cheap, buy twice.” So something that is cheap…well is. Look at what the top tier carbine instructors use on their carbines, again as P.R. says “In police work they call that a clue.” Anyway, my intent below is not to create another EO vs Aimpoint discussion but to demonstrate life cycle costs based on Apples and Apples as best possible (I am unaware of any other red dot optic using AA batteries), thus I used only the data provided by each manufacturer for their optics that are NVD compatible for military use, use AA battery(ies), and manufacturers suggested retail price, as well as an approximate battery cost from a Google search. Again, sale prices of the optics are often less.
EOTech 552A65 AA Batteries 350 Hours MSR price $479
EOTech 557.AR223 AA Batteries 600 Hours w/AA Alkaline (1100 w/AA Lithium) Hours MSR price $569
Aimpoint CompM4 single AA Battery 80,000 Hours MSR Price $780
All have integral mounts thus no additional cost for mounting solutions for any of these optics.
Comparative Life Cycle/Usage Costs:
Figures below are based on the new 7 year shelf life Alkaline AA batteries at 8760 hours/year = 61,320 Hours and not on AA Lithium battery life, which for an Aimpoint is 80,000 hours not sure for EOs whether it is more or not. Thus, kept it AA Alkaline to AA Alkaline.
$780 - Aimpoint CompM4 - one single AA
$654 - EOTech 552.A65 + 350 AA Batteries at $0.50 ea
$672 - EOTech 557.AR223 + 206 AA Batteries at $0.50 ea
You can conduct your own Apple to Orange life cycle comparisons ie. one type red dot vs another using different type batteries. Bottomline is that you need to factor in life cycle costs when determining real value when purchasing an optic. Cheaper is very rarely better.
S/F
P.S. Edited based on updated information on 557 from L3 website.