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