Have the serial number ready for the CS rep. Cheapest of the three. I zeroed the red dot to the irons I already had on and it was almost right on. The Comp M4 was launched in 2007 and the M5 was rolled out one decade later in 2017. The CS rep I spoke to said it was about a 6-9 week turn a round. Little bit shorter battery life than the Comp M4/M4S, but not by much. Middle of the road for battery life among the 3 sights. the battery compartment got in the way of the larue mount on the M4s?? About 10% wouldn't turn on, had jacked up battery compartment/ covers, missing knobs. Re: Aimpoint M2, M3, M4s - differences?? They include the Aimpoint Comp M4 vs. M5. I researched alot before buying it, and the major selling point for me was the outstanding 50,000 hours of battery life on setting 7. I change battery about every six months just because. Electronically regulated to allow use of any AA size battery available worldwide. So while you are paying more, you are definitely getting a sight that has superior construction. The main difference is that the M4’s battery lasts an impressive 8 years on a single AA battery! I've had it a couple years now and have never turned it off. Mfr Part: 12221 Add to Cart. I thought the original M68s were Comp M2s, we got handed milk crate of them from another unit prior to deployment. The lever goes on the opposite side from the battery compartment. We used about 75 of them during the deployment (we received around 45 ACOGs and 45 Comp M4 … If one were to leave the sight on 24/7, would this cause the electronics in the sight to degrade over time? More variation in mounts compared to the Comp M4/M4S. Lighter than the Comp M4/M4S. 500,000 hours of use on NVD settings with a single AA battery. Battery is an odd size (1/3N) T2 - Great Unit. Hey guys, I just ordered a Comp ML3 from G&R, and I'm hoping that it will be here by the end of the week. Me personally I tried out an Eotech a few months back for the first time in years and now I own 2 exps3-0’s. I think you got the lever on the wrong side brother. The Aimpoint PRO is known for being a durable red dot sight with great battery life. According to Aimpoint, the battery (type 2L76 or DL1/3N) will last up to 3 years of continuous use with the optic set on setting 7 out of 10. Guaranteed. The Comp series sights are the most popular products of the 1974-founded company. The Aimpoint Comp M4 is the “premium” version of the Aimpoint PRO. My Comp M4 is in Sweden right now being repaired. Forever. umm, and yes red dots are both eye open optics. I think it’s better than the Aimpoint pro/aco just due to the AA battery. Lightest of the 3. AIMPOINT - COMPM4/PRO REPLACEMENT BATTERY CAP. 100-018-566WB Replacement Battery Cap CompM4/PRO/ACO. Aimpoint CompM4 Red Dot Reflex Sight with QRP2 Mount, Spacer, Rubber Bikini Lens Covers - 2 MOA - 11972 Up to 80,000 hours (over 8 years) of daytime operation using one AA battery. Re: aimpoint Comp M4 My M4s came with the spacer that makes it co-witness with the irons. Aimpoint CompM4/PRO/ACO replacement battery cap is a direct replacment for the battery cap that came the your sight from the factory. Aimpoint AB Is an optics company that specializes in red dot sights. Mine had problems with the power rheostat on/off staying at one power setting. Call Aimpoint USA for an RMA and send it in. Has been there since early Oct. Should be hearing back soon. On an sbr though I’d rather have one of the micro sized models. Battery about every six months just because the CS rep i spoke said... Years now and have never turned it off spoke to said it was almost right on settings with single. I zeroed the red dot sights 2 exps3-0’s 3 sights mounts compared to the irons serial... 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